Editing Thermal

Relative: see also [[Cooling]],[[Thermal]]
<div style="float:right">[[File:ADT7461A0002RMZR.png|400px|thumb|left|OnSemi ADT7461A0002RMZR<br />6-710-287-01<br />Used for monitoring the [[CELL BE]]&nbsp;(IC1101) & [[RSX]]&nbsp;(IC2101)]]</div>

== Motherboard Thermal Management ==
All the thermal sensors of the PS3 motherboard are connected to [[Syscon Hardware|syscon]], the current temperatures are compared with the settings of a syscon [[SC EEPROM|EEPROM]] region named [[Syscon Thermal Config|thermal config]] and based in the results of the comparison syscon sets a fan speed

=== Temperature Monitors ===
The internal circuitry of [[CELL BE|CELL]], [[RSX]], and other components of the PS3 motherboard contains temperature sensors (also known as diodes) that outputs an analog signal throught 2 lines (named D+ and D-), this signal is taken by a dedicated chip named "temperature monitor" that converts it to digital (bytes)

The connection in between syscon and the thermal monitors is made by a protocol named [https://en.wikipedia.org/wiki/System_Management_Bus SMBus] with 2 lines named SCL (serial clock) and SDA (serial data). Syscon is the master of the SMBus and the thermal monitors are the slaves connected in cascade to the same 2 lines of the SMBus. Syscon generates the SCL clock signal (the clock is an output of syscon, and a input for the monitors), and the SDA data signal is bidirectional

SMBus protocol is derivated from the I2C protocol, there are some differences but a lot more things in common, all the slaves connected to the SMBus have a unique address given by the manufacturer of the component (and cant be changed, this is why each thermal moniotor of the PS3 motherboard have a different component name (as example TMP411A for CELL and TMP411B for RSX)

The SMBus lines are protected in internal layers of the motherboard between 2 ground layers to shield them against interferences

*See also:
**[http://www.smbus.org/specs/smbus20.pdf System Management Bus (SMBus) Specification, version 2.0 (03-Aug-2000).PDF]
**[http://www.smbus.org/specs/SMBus_3_1_20180319.pdf System Management Bus (SMBus) Specification, version 3.1 (19-Mar-2018).PDF]
*[https://www.ti.com/product/TMP411 Texas Instruments TMP411 Product page]
**[https://www.ti.com/lit/ds/symlink/tmp411-q1.pdf?ts=1623505830561 ±1°C Remote and Local TEMPERATURE SENSOR with N-Factor and Series Resistance Correction (February 2007).PDF]
**[https://www.ti.com/lit/ds/symlink/tmp411.pdf?ts=1623564774345&ref_url=https%253A%252F%252Fwww.google.com TMP411 ±1°C Remote and Local Temperature Sensor With N-Factor and Series Resistance Correction (December 2016).PDF]


{| class="wikitable" style="text-align:center; font-size:small;"
|+ Temperature monitors models by motherboard model
! [[Motherboard_Revisions|Mother Board]] !! [[CELL BE|CELL]] !! [[RSX]] !! [[South Bridge|SB]] !! [http://en.wikipedia.org/wiki/Emotion_Engine EEGS] !! BEVR !! Others/Notes
|-
! [[TMU-520]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || ? || 
|-
! [[COK-001]]
| ? || ? || ? || ? || ? || 
|-
! [[COK-002]]
| ? || ? || ? || ? || ? || 
|-
! [[SEM-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[DIA-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[DIA-002]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[DEB-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[VER-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! colspan="7" | 
|-
! [[DYN-001]]
| TMP411A || TMP411B || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[SUR-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[JTP-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[JSD-001]]
| TMP411A || TMP411B || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[KTE-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! colspan="7" | 
|-
! [[MSX-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[MPX-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[NPX-001]]
| TMP411A || TMP411B || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[PPX-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[PQX-001]]
| TMP411A || TMP411B || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[RTX-001]]
| ? || ? || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|-
! [[REX-001]]
|  || 201BI<br>1309L || ? || {{cellcolors|#ff9999}} N/A || {{cellcolors|#ff9999}} N/A || 
|}

==== CELL BE ====
<div style="float:right">[[File:IC1101 CELL BE Temperature Monitor.png|200px|thumb|left|IC1101 [[CELL BE]] Temperature Monitor ([[CECHAxx]],[[CECHBxx]],[[CECHCxx]],[[CECHExx]])]]<br />
[[File:IC1002 - AD51(067ARMZ-REEL - CECHGxx.png|200px|thumb|left|IC1002 [[CELL BE]] Temperature Monitor [[CECHGxx]]]]<br />[[File:Texas_Instrument_Remote_Junction_Temperature_Sensor_TMP411A.jpg|200px|thumb|left|Texas Instrument Remote Junction Temperature Sensor TMP411A, connecting [[CELL BE]] with [[Syscon_Hardware|SYSCON]]<br />Seen on a [[JSD-001]] motherboard]]</div>

AD51/067ARMZ-REEL (2 channel Thermal Monitor SMbus IC) <br />
6-710-287-01 / IC1101 (in [[CECHAxx]], [[CECHBxx]], [[CECHCxx]], [[CECHExx]])<br />
IC1002 (in [[CECHGxx]])<br />
Used for monitoring the [[CELL BE]]

{| border="1" cellspacing="0" cellpadding="5" border="#999" class="wikitable" style="border:1px solid #999; border-collapse: collapse;" 
|- bgcolor="#cccccc"
! Pin !! Signal !! Description
|-
| 1 || VDD || from +3.3_Thermal (with C1104 0.1μF B 10V 1005 to Ground as filter)
|-
| 2 || D+ || from [[CELL BE]] AU17 pad STI_THERMAL0 via R1106 100 Ohm and C1103 0.001{{micro}}F 50V
|-
| 3 || D- || from [[CELL BE]] AT17 pad STI_THERMAL1 via R1107 100 Ohm and C1103 0.001{{micro}}F 50V
|-
| 4 || /THERM || 
|-
| 5 || GND || Ground
|-
| 6 || /THERM2 || to /THRBE_SENS_ALRT
|-
| 7 || SDATA || from THR_I2C_SDA
|-
| 8 || SCLK || from THR_I2C_SCL
|-
|}

*In JSD-001
**Texas Instrument Remote Junction Temperature Sensor TMP411'''A'''
**I2C address = 100 1100
**pin 1 (VDD) connected to pin 8 of voltage regulator 463A (3.3v standby named 3.3_EVER_A)
**pin 4 connected to CELL ?
**pin 6 not connected
**pin 7 (THR_I2C_SDA) connected to syscon SWx-x series pin 24 by a 50ohm resistor
**pin 8 (THR_I2C_SCL) connected to syscon SWx-x series pin 25
{{clear}}

==== RSX ====
<div style="float:right">[[File:IC2101 RSX Temperature Monitor.png|200px|thumb|left|IC2101 [[RSX]] Temperature Monitor]]<br />[[File:Texas_Instrument_Remote_Junction_Temperature_Sensor_TMP411B.jpg|200px|thumb|left|Texas Instrument Remote Junction Temperature Sensor TMP411B, connecting [[RSX]] with [[Syscon_Hardware|SYSCON]]<br />Seen on a [[JSD-001]] motherboard]]</div>

OnSemi ADT7461A0002RMZR (2 channel Thermal Monitor SMbus IC [[CELL BE]]/[[RSX]]) <br />
6-710-286-01 / IC2101 <br />
Used for monitoring the [[RSX]]<br />
Datasheet: [http://www.onsemi.com/pub/Collateral/ADT7461-D.PDF ADT7461-D.PDF] <br />

{| border="1" cellspacing="0" cellpadding="5" border="#999" class="wikitable" style="border:1px solid #999; border-collapse: collapse;" 
|- bgcolor="#cccccc"
! Pin !! Signal !! Description
|-
| 1 || VCC || from +3.3_Thermal (with C2108 0.1{{micro}}F B 10V 1005 to Ground as filter)
|-
| 2 || D+ || from [[RSX]] AW12 pad RSX_TDP via R2101 100 Ohm and C2103 0.001{{micro}}F 50V
|-
| 3 || D- || from [[RSX]] AY12 pad RSX_TDN via R2102 100 Ohm and C2103 0.001{{micro}}F 50V
|-
| 4 || /THERM || to [[RSX]] AV14 pad RSX_GPIO6 / RSX_THR_EVENT
|-
| 5 || GND || Ground
|-
| 6 || /THERM2 || to /THRRSX_SENS_ALRT
|-
| 7 || SDATA || from THR_I2C_SDA
|-
| 8 || SCLK || from THR_I2C_SCL
|-
|}

*In JSD-001
**Texas Instrument Remote Junction Temperature Sensor TMP411'''B'''
**I2C address = 100 1101
**pin 1 (VDD) connected to pin 8 of voltage regulator 463A (3.3v standby named 3.3_EVER_A)
**pin 4 connected to RSX
**pin 6 not connected
**pin 7 (THR_I2C_SDA) connected to syscon SWx-x series pin 24 by a 50ohm resistor
**pin 8 (THR_I2C_SCL) connected to syscon SWx-x series pin 25

{{clear}}

==== BE VR ? ==== 
<div style="float:right">[[File:IC6108 - AD51(007Z-0REEL - CECHAxx -CECHBxx.png|200px|thumb|left|IC6108 - AD51(007Z-0REEL - [[CECHAxx]] [[CECHBxx]]]]</div>

IC6108 <br />
AD51(007Z-0REEL <br />
Used for monitoring BEVR ? (CELL BE Voltage Regulators)

{| border="1" cellspacing="0" cellpadding="5" border="#999" class="wikitable" style="border:1px solid #999; border-collapse: collapse;" 
|- bgcolor="#cccccc"
! Pin !! Signal !! Description
|-
| 1 || SDA || from THR_I2C_SDA
|-
| 2 || SCL || from THR_I2C_SCL
|-
| 3 || OTI || 
|-
| 4 || GND || Ground
|-
| 5 || A2 || to Ground
|-
| 6 || A1 || to Ground
|-
| 7 || A0 || to VDD
|-
| 8 || VDD || from +3.3V_Thermal (with C6168 0.1{{micro}}F B 10V 1005 to ground as filter)
|-
|}
{{clear}}

==== SB ====
<div style="float:right">[[File:IC3101 - 6-710-196-01 - AD51(007Z-0REEL (CXD2973GB monitor).png|200px|thumb|left|IC3101 - AD51/007Z-0REEL - [[CECHAxx]] [[CECHBxx]] [[CECHCxx]] [[CECHExx]]]]<br />[[File:IC3002 - AD51(007Z-0REEL - CECHGxx.png|200px|thumb|left|IC3002 - AD51/007Z-0REEL - [[CECHGxx]]]]</div>

AD51(007Z-0REEL <br />
6-710-196-01 / IC3101 (on [[CECHAxx]] [[CECHBxx]] [[CECHCxx]] [[CECHExx]]) <br />
IC3002 (on [[CECHGxx]]) <br />
Used for monitoring the [[South Bridge]]

{| border="1" cellspacing="0" cellpadding="5" border="#999" class="wikitable" style="border:1px solid #999; border-collapse: collapse;" 
|- bgcolor="#cccccc"
! Pin !! Signal !! Description
|-
| 1 || SDA || from THR_I2C_SDA
|-
| 2 || SCL || from THR_I2C_SCL
|-
| 3 || OTI || 
|-
| 4 || GND || Ground
|-
| 5 || A2 || to Ground
|-
| 6 || A1 || to Ground
|-
| 7 || A0 || to VDD
|-
| 8 || VDD || from +3.3V_Thermal (with C3155 0.1{{micro}}F B 10V 1005 to ground as filter)
|-
|}
{{clear}}

==== EE+GS ==== 
<div style="float:right">[[File:IC7005 - AD51(007Z-0REEL - CECHAxx -CECHBxx.png|200px|thumb|left|IC7005 - AD51(007Z-0REEL - Used for monitoring the PS2 EE/GS [[CXD9833GB]] - [[CECHAxx]] [[CECHBxx]]]]</div>

IC7005 <br />
AD51(007Z-0REEL <br />
Used for monitoring the [[CXD9833GB]]

{| border="1" cellspacing="0" cellpadding="5" border="#999" class="wikitable" style="border:1px solid #999; border-collapse: collapse;" 
|- bgcolor="#cccccc"
! Pin !! Signal !! Description
|-
| 1 || SDA || from THR_I2C_SDA (via R7073 {{unk|50{{Ohm}}}})
|-
| 2 || SCL || from THR_I2C_SCL (via R7074 {{unk|50{{Ohm}}}})
|-
| 3 || OTI || 
|-
| 4 || GND || Ground
|-
| 5 || A2 || to Ground
|-
| 6 || A1 || to Ground
|-
| 7 || A0 || to VDD
|-
| 8 || VDD || from +3.3V_Thermal (with C7286 0.1{{micro}}F B 10V 1005 to ground as filter)
|-
|}
{{clear}}

=== [[CELL BE]] Internal Powermanagement ===
<div style="float:right">[[File:CellBE-heatdistribution.jpg|200px|thumb|left|[[CELL BE]] heatdistribution (on die)]]</div><br />

* Dynamic Power Managment with 5 power managment states
* 1 linear sensor (diode)
* 10 digital thermal sensors (8xSPE, PPE and ?)
{{clear}}

=== RSX internal Powermanagement ===
1 linear sensor (diode)<br />

Internal selfmanagement: Unknown
{{clear}}

== Readout of Thermal and Fan data using Software ==
Readable in software with [[LV2_Functions_and_Syscalls#Syscalls|Sycalls]]: '''sys_game_get_temperature''' (sc383), '''sys_sm_get_tzpb''' (sc384), '''sys_sm_get_fan_policy''' (sc409)
{{clear}}

=== Fan settings per PS3 model based on syscon data reads ===

{| border="1" cellspacing="0" cellpadding="5" border="#999" class="wikitable" style="border:1px solid #999; border-collapse: collapse; text-align:center; font-size:x-small;"
|+ Syscon fan factory settings
! rowspan="3" | [[SKU Models | PS3 Model]] !! rowspan="3" | [[Motherboard Revisions | MotherBoard]] !! rowspan="3" | [[Syscon Hardware | Syscon]] !! rowspan="3" | [[Cooling | Heatsink (Fan Ø)]] !! colspan="35" | [[Cooling | Fan]] Steps !! rowspan="3" | Overheat<BR />Shutdown<BR />Temperature !! rowspan="3" | [[Boot_modi#Fan_test | Fantest<BR />mode]]<BR />Supported
|-
! colspan="2" | Step 1 !! rowspan="18" {{cellcolors|#666666|#ffffff}} Warmup !! colspan="2" | Step 2  !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 3 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 4 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 5 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 6 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 7 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 8 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 9 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 10 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 11 !! rowspan="18" {{cellcolors|#666666|#ffffff}} !! colspan="2" | Step 12
|-
! Temp1 !! Speed1 !! Temp2 !! Speed2 !! Temp3 !! Speed3 !! Temp4 !! Speed4 !! Temp5 !! Speed5 !! Temp6 !! Speed6 !! Temp7 !! Speed7 !! Temp8 !! Speed8 !! Temp9 !! Speed9 !! Temp10 !! Speed10 !! Temp11 !! Speed11 !! Temp12 !! Speed12
|-
! [[CECHAxx]] || [[COK-00x#COK-001|COK-001]] || [[Syscon CXR713 Series|CXR713 Series]] || [[Type_1]] (14 cm)
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{no}}
|-
! [[CECHBxx]] || [[COK-00x#COK-001|COK-001]] || [[Syscon CXR713 Series|CXR713 Series]] || [[Type_1]] (14 cm)
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{no}}
|-
! [[CECHCxx]] || [[COK-00x#COK-002|COK-002]] || [[Syscon CXR713 Series|CXR713 Series]] || [[Type_1]] (14 cm)
| {{cellcolors|#ff9999}} <abbr title="Ambient operating temperature 5°C - 35°C">20/20</abbr> || {{cellcolors|#9999ff}} <abbr title="Warmup Fan Speed">0x33 (20%)</abbr> || {{cellcolors|#ff9999}} 72/65 || {{cellcolors|#9999ff}} 0x40 (25%) || {{cellcolors|#ff9999}} 74/66 || {{cellcolors|#9999ff}} 0x48 (28%) || {{cellcolors|#ff9999}} 75/66<!-- this seems wrong now updated! --> || {{cellcolors|#9999ff}} 0x4D (31%) || {{cellcolors|#ff9999}} 76/68 || colspan="0" {{cellcolors|#9999ff}} 0x55 (35%) || colspan="2" {{cellcolors|lightgrey}} No more fan steps ? || colspan="2" {{cellcolors|lightgrey}} No more fan steps ? || colspan="2" {{cellcolors|lightgrey}} No more fan steps ? || colspan="2" {{cellcolors|lightgrey}} No more fan steps ? || colspan="2" {{cellcolors|lightgrey}} No more fan steps ? || colspan="2" {{cellcolors|lightgrey}} No more fan steps ? || colspan="2" {{cellcolors|lightgrey}} No more fan steps ?
| || {{no}}
|-
! [[CECHExx]] || [[COK-00x#COK-002|COK-002]] || [[Syscon CXR713 Series|CXR713 Series]] || [[Type_1]] (14 cm)
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{no}}
|-
! [[CECHGxx]] || [[SEM-00x|SEM-001]] || [[Syscon CXR713 Series|CXR713 Series]] || [[Type_2]] (14 cm) ?
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECHHxx]] || [[DIA-00x#DIA-001|DIA-001]] || [[Syscon CXR714 Series|CXR714 Series]] || [[Type_3]] (14 cm) ?
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECHJxx]] || [[DIA-00x#DIA-002|DIA-002]] || [[Syscon CXR714 Series|CXR714 Series]] || [[Type_3]] (14 cm) ?
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECHKxx]] || [[DIA-00x#DIA-002|DIA-002]] || [[Syscon CXR714 Series|CXR714 Series]] || [[Type_3]] (14 cm) ?
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECHLxx]] || [[VER-00x|VER-001]] || [[Syscon SW Series|SW Series]] || [[Type_4]] (14 cm) ?
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECHMxx]] || [[VER-00x|VER-001]] || [[Syscon SW Series|SW Series]] || [[Type_4]] (14 cm) ?
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECHPxx]] || [[VER-00x|VER-001]] || [[Syscon SW Series|SW Series]] || [[Type_4]] (14 cm) ?
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECHQxx]] || [[VER-00x|VER-001]] || [[Syscon SW Series|SW Series]] || [[Type_4]] (14 cm) ?
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECH-20xx]] || [[DYN-00x|DYN-001]] || [[Syscon SW2 Series|SW2 Series]] || [[Type_5]] (10 cm)
| {{cellcolors|#ff9999}} <abbr title="Ambient operating temperature 5°C - 35°C">20/20</abbr> || {{cellcolors|#9999ff}} <abbr title="Warmup Fan Speed">0x33 (20%)</abbr> || {{cellcolors|#ff9999}} 53/45 || {{cellcolors|#9999ff}} 0x39 (22%) || {{cellcolors|#ff9999}} 54/46 || {{cellcolors|#9999ff}} 0x3B (23%) || {{cellcolors|#ff9999}} 55/47 || {{cellcolors|#9999ff}} 0x3E (24%) || {{cellcolors|#ff9999}} 56/47 || {{cellcolors|#9999ff}} 0x40 (25%) || {{cellcolors|#ff9999}} 57/48 || {{cellcolors|#9999ff}} 0x43 (26%) || {{cellcolors|#ff9999}} 60/62 || {{cellcolors|#9999ff}} 0x45 (27%) || {{cellcolors|#ff9999}} 65/66 || {{cellcolors|#9999ff}} 0x48 (28%) || {{cellcolors|#ff9999}} 69/71 || {{cellcolors|#9999ff}} 0x4A (29%) || colspan="2" {{cellcolors|lightgrey}} Unknown fan steps || colspan="2" {{cellcolors|lightgrey}} Unknown fan steps || colspan="2" {{cellcolors|lightgrey}} Unknown fan steps
| || {{yes}}
|-
! [[CECH-21xx]] || [[SUR-00x|SUR-001]] || [[Syscon SW2 Series|SW2 Series]] || [[Type_5]] (10 cm)
| {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} || {{cellcolors|#ff9999}} || {{cellcolors|#9999ff}} 
| || {{yes}}
|-
! [[CECH-25xx]] || [[JTP-00x|JTP-001]] || [[Syscon SW2 Series|SW2 Series]] || [[Type_5]] (10 cm)
| {{cellcolors|#ff9999}} <abbr title="Ambient operating temperature 5°C - 35°C">20/20</abbr> || {{cellcolors|#9999ff}} <abbr title="Warmup Fan Speed">0x33 (20%)</abbr> || {{cellcolors|#ff9999}} 58/54 || {{cellcolors|#9999ff}} 0x39 (22%) || {{cellcolors|#ff9999}} 59/57 || {{cellcolors|#9999ff}} 0x3B (23%) || {{cellcolors|#ff9999}} 60/60 || {{cellcolors|#9999ff}} 0x3E (24%) || {{cellcolors|#ff9999}} 62/61 || {{cellcolors|#9999ff}} 0x40 (25%) || {{cellcolors|#ff9999}} 63/62 || {{cellcolors|#9999ff}} 0x43 (26%) || {{cellcolors|#ff9999}} 64/64 || {{cellcolors|#9999ff}} 0x45 (27%) || {{cellcolors|#ff9999}} 65/65 || {{cellcolors|#9999ff}} 0x48 (28%) || {{cellcolors|#ff9999}} 70/69 || {{cellcolors|#9999ff}} 0x4A (29%) || {{cellcolors|#ff9999}} 73/73 || {{cellcolors|#9999ff}} 0x50 (31%) || colspan="2" {{cellcolors|lightgrey}} Unknown fan steps || colspan="2" {{cellcolors|lightgrey}} Unknown fan steps
| ??/?? || {{yes}}
|-
! [[CECH-25xx]] || [[JSD-00x|JSD-001]] || [[Syscon SW2 Series|SW2 Series]] || [[Type_5]] (10 cm)
| {{cellcolors|#ff9999}} <abbr title="Ambient operating temperature 5°C - 35°C">20/20</abbr> || {{cellcolors|#9999ff}} <abbr title="Warmup Fan Speed">0x33 (20%)</abbr> || {{cellcolors|#ff9999}} 59/54 || {{cellcolors|#9999ff}} 0x39 (22%) || {{cellcolors|#ff9999}} 60/56 || {{cellcolors|#9999ff}} 0x3B (23%) || {{cellcolors|#ff9999}} 60/59 || {{cellcolors|#9999ff}} 0x3E (24%) || {{cellcolors|#ff9999}} 61/59 || {{cellcolors|#9999ff}} 0x40 (25%) || {{cellcolors|#ff9999}} 62/61 || {{cellcolors|#9999ff}} 0x43 (26%) || {{cellcolors|#ff9999}} 64/65 || {{cellcolors|#9999ff}} 0x45 (27%) || {{cellcolors|#ff9999}} 65/66 || {{cellcolors|#9999ff}} 0x48 (28%) || {{cellcolors|#ff9999}} 69/70 || {{cellcolors|#9999ff}} 0x4A (29%) || colspan="2" {{cellcolors|lightgrey}} Unknown fan steps || colspan="2" {{cellcolors|lightgrey}} Unknown fan steps || colspan="2" {{cellcolors|lightgrey}} Unknown fan steps
| ??/?? || {{yes}}
|}

*Notes
**The table uses an ambient temperature of 20 celsius degrees, the value doesnt matters for the purpose of the table. PS3 manual states: ''Ambient Operating temperature 5°C - 35°C (41°F - 95°F)''
**In "Temp1" column the exact temperature has no importance, there is a big gap in this first step (from minimal to around 54º the fan speed is the same), but the fan speed associated in "Speed1" is needed to know because is the minimal
**Temperatures in the format XX/YY are CELL/RSX in celsius degrees (°, <nowiki>{{degree}}</nowiki>, <nowiki>{{°}}</nowiki> or &amp;deg;)
**Fan speeds are in hexadecimal and in percentages
**Firmware installations can change fan configuration values in syscon so the values can vary depending of firmware
**Fan has a special "test/clean" mode that sets the fan at max speed, only works in some PS3 models, to enter this mode first disconnect power cord from the wallet, then press eject button and keep it pressed, then connect power cord to the wallet
**When the temperature of the PS3 is decreasing (like when exiting a game) it takes around 2 minutes to step back to the previous speed (to dont disturb the user with too much speed changes up and down). And never returns to the initial speed of 0x33 (tested for 20 minutes)

{{Boxframe0|content='''Test conditions'''
To make this test, first install "iris manager" and configure the fan speeds to be controlled by syscon ('''sys_sm_get_fan_policy''' in '''mode 1''' allows to see the default values syscon is using in real time at the bottom of the screen)... then turn off the PS3 and let it cool for some hours to return to ambient temperature

After this preparation start the test by turning on the PS3 and enter in iris, go to fancontrol settings screen as faster as possible, then start taking notes of how the values that appears at the bottom of the screen changes over time

This test can last over 60 minutes in some PS3 models and will not reach the higher temperature values because the efficiency of the cooling system doesnt allows the PS3 to overheat for obvious reasons. The maximun temperature on the test is not important for this table, the values of the fan speeds are (and the temperature asociated with this fan speed change)

A controlled overheat can be forced by blocking the airflow grills (any of them) with a plastic bag, only use this method for small overheats around 4º or 5º that are the normal peaks that will be present in-game. When manual overheating never exceed the '''overheat shutdown temperature''' that is around 85º because this can cause a permanent damage to the motherboard
}}
{{clear}}

=== Homebrew for thermal and fan read and control ===
{{#ev:youtube|lWLzWxh08Zo}}

<div style="float:right">[[File:Control fan utility 1.8.1.jpg|200px|thumb|left|Control fan utility]]</div>

* http://www.ps3devwiki.com/files/devtools/PS3_Temp/  [http://www.filecrop.com/81195444/index.html mirror] [http://www.filecrop.com/81219150/index.html mirror]

* [http://mods.elotrolado.net/~hermes/ps3/control_fan_utility_v0.3.rar control_fan_utility_v0.3.rar] (including source) [http://www.mirrorcreator.com/files/KVLXQPJW/control_fan_utility_v0.3.rar_links mirror] for 4.31 and 4.40 // [http://www.elotrolado.net/hilo_utilidad-control-fan-utility-v0-3-cfw-4-31-y-4-40-cex_1893851 original thread]
* [http://mods.elotrolado.net/~hermes/ps3/control_fan_utility_v1.0.rar control_fan_utility_v1.0.rar] (including source) [http://www.mirrorcreator.com/files/1OFDEDNC/control_fan_utility_v1.0.rar_links mirror] for 3.41, 3.55, 4.21, 4.30 and 4.40 // [http://www.elotrolado.net/hilo_utilidad-control-fan-utility-v1-0-cfw-cex-3-41-3-55-4-21-4-30-4-31-y-4-40_1893851 original thread]
* [http://mods.elotrolado.net/%7Ehermes/ps3/control_fan_utility_v1.6.rar control_fan_utility_v1.6.rar] (added support for Remote Play) [http://rapidshare.com/files/3792710738/control_fan_v1.6%28remoteplay%29.pkg mirror] // [http://www.elotrolado.net/hilo_utilidad-control-fan-utility-v1-6-cfw-cex-3-41-3-55-4-21-4-30-4-31-y-4-40_1893851 original thread]
* [http://mods.elotrolado.net/~hermes/ps3/control_fan_utility_v1.7.rar control_fan_utility_v1.7.rar] (added support for more firmwares) // [http://www.elotrolado.net/hilo_utilidad-control-fan-utility-v1-7-cfw-3-41-3-55-4-21-4-30-4-31-4-40-y-4-41_1893851 original thread]
* [http://www.ps3crunch.net/forum/threads/7388-Control-Fan-Utility-1-8-1-by-ALEXANDER Control Fan Utility 1.8.1] (unofficial mod by Alexander)
* [http://psx-scene.com/forums/content/fan-control-utility-v1-9-now-supports-all-4-46-cfw-3534/ Fan Control Utility v1.9: Now Supports ALL 4.46 CFW] // [http://sendspace.com/file/u1bxmy D/L] (unofficial mod by Alexander)

* [http://mods.elotrolado.net/%7Ehermes/ps3/irismanager-4-x.rar irismanager-4-x.rar] (with fancontrol/thermal output) // [http://www.elotrolado.net/hilo_aplicacion-iris-manager-v2-40_1862716 original thread]

-----
Default values used by the payload included in "control fan utility" and "iris manager"
{| class="wikitable sortable"
|+speed_table_default[8]
! <nowiki>#</nowiki> !! value !! mode !! notes
|-
| 0 || 0x5f || sm_shutdown / manual mode || 
|-
| 1 || 0x4d || < temp_control0 || 
|-
| 2 || 0x54 || temp_control0 => temp_control1 ||
|-
| 3 || 0x60 || temp_control0 <= temp_control1 ||
|-
| 4 || 0x68 || >= temp_control1 ||
|-
| 5 || 0x70 || >= temp_control2 || 
|-
| 6 || 0x78 || >= temp_control3 || 
|-
| 7 || 0xA0 || >= temp_control4 || 
|-
|}

{| class="wikitable sortable"
|+temp_control_default[5]
! <nowiki>#</nowiki> !! temp !! note
|-
| 0 || 62 || 
|-
| 1 || 68 || 
|-
| 2 || 70 || 
|-
| 3 || 72 || 
|-
| 4 || 75 || 
|-
|}

==== using TC and ccapi ====
prerequisites:
* A PS3 in CFW and connected to the LAN.
* A PC connected to the local network.
* The PKG and the following plugin : http://www.mediafire.com/download/lec46ljzazooaqr/CcApi_2.00_package.rar
* The PC tool Temp Control 1.0 that you can find by following this link : http://www.mediafire.com/download/8hypjcxsj8lpq3j/TC101.zip
* NET Framework 4.5 installed on your PC (you can get it in the following link) : http://www.microsoft.com/en-us/download/details.aspx?id=30653

Step by step:
# Unzip the package 'CcApi_2.00_package.rar' on your pc and copy the folder 'plugins' to the root of your external hard drive or USB flash drive.
# Copy 'XX0001-ENSTONEXX_00-00000000000CCAPIv2.00.pkg' also to the root of your external hard drive or USB
# Now go to the ps3, and install the pkg 'XX0001-ENSTONEXX_00-00000000000CCAPIv2.00.pkg', then reboot when it is demanded.
# When your PS3 restarts, a popup will appear at the launch of the xmb telling you that the plugin has successfully been loaded.
# Now go to the PC, unzip the package 'TC101.zip' and run 'Temp Control.exe'.
# Enter the IP address of the PS3 in the red zone.
# Then click 'connect' in Blue.
# The temperatures will be displayed in green.
# Check the box PS3 notifications and temperatures will consistently be displayed on the TV screen.
Using this will allow you to see the actual temperature of the ps3 and to be aware when the temperature goes very high so you turn it off and avoid a problem of your ps3 system.

source: http://wololo.net/talk/viewtopic.php?f=67&t=38795

== Thermal Images ==

=== 90nm / 60GB FAT and 65nm / 40GB FAT ===
''These tests aren't by any means scientific, as we only heated the PS3's with the "Folding @ Home" application included with "Life With PlayStation" for about an hour, as the temperature had reached it's peak by then. The findings may surprise some of you, as earlier reports stated the 40GB PS3's used much less power and emitted less heat as a result of a smaller CELL processor and some other differences.''

<table width="100%" align="left"><tr><td align="left">''With the ambient temperature at about 22 Celcius, we started taking pictures. As you can see in the first image below, the upper-right part of the PS3 heats up the fastest, because this is where the ventilation system outputs most of the hot air building up inside of the console. Already in this image, you can see the power supply in the lower right corner heating up.''</td><td>[[File:IR 0020.jpg|200px|thumb|PS3 Thermal Imaging - IR_0020]]</td></tr></table>

<table width="100%" align="left"><tr><td align="left">''The front of the PS3 didn't heat up as quickly, as we can see in the next picture. The only slightly warm part is the PS3's power supply in the lower left corner of the console as seen:''</td><td>[[File:IR 0021.jpg|200px|thumb|PS3 Thermal Imaging - IR_0021]]</td></tr></table>

<table width="100%" align="left"><tr><td align="left">''The next image also shows the front of the PS3, but from a slightly elevated angle to show the top/side vents in comparison to the PSU.''</td><td>[[File:IR 0022.jpg|200px|thumb|PS3 Thermal Imaging - IR_0022]]</td></tr></table>

<table width="100%" align="left"><tr><td align="left">''Now after waiting some time (7 minutes into testing), we can already see the back and side vents getting quite hot, going as high as 49 C. This is where the heatsink is sitting mostly.''</td><td>[[File:IR 0024.jpg|200px|thumb|PS3 Thermal Imaging - IR_0024]]</td></tr></table>

''Now we waited for the PS3 to REALLY heat up. Using Folding@Home, the PS3 is put under a lot of stress, although different to gaming, because the RSX is supposedly not put under as much stress. This was done because it was easier to get a uniform heat output from the system, as various games tax the system's components in different ways and at different times, being that they are not linear.''

<table width="100%" align="left"><tr><td align="left">''Sadly, in this pic, the FLIR camera was not calibrated correctly (you have to calibrate it before every pic), so it seems that the PS3 is much hotter than it really is. The heat gauge on the side tells us the actual max temp on this pic is only 29 C. Still, we can gather from this pic that only the PSU is getting hot, and the rest of the console is uniformly orange.''</td><td>[[File:IR 0026.jpg|200px|thumb|PS3 Thermal Imaging - IR_0026]]</td></tr></table>

<table width="100%" align="left"><tr><td align="left">''The backside shows a different picture. The rear vents are now very warm at 45 C, compared to the rest at about 23 C, which is slightly above room temperature.''</td><td>[[File:IR 0027.jpg|200px|thumb|PS3 Thermal Imaging - IR_0027]]</td></tr></table>

<table width="100%" align="left"><tr><td align="left">''Here is the backside of the PS3 after heating up. The complete bottom is getting pretty hot, but the most heat output can still be seen at the side vent, which is at 42 C.''</td><td>[[File:IR 0028.jpg|200px|thumb|PS3 Thermal Imaging - IR_0028]]</td></tr></table>

<table width="100%" align="left"><tr><td align="left">''Now that we know the temperature of the 60GB after being given time to warm up under load, we connected the 40GB unit to the TV. Starting again at about 22 C, we can again see the PSU heating up from the front.''</td><td>[[File:IR 0030.jpg|200px|thumb|PS3 Thermal Imaging - IR_0030]]</td></tr></table>

<table width="100%" align="left"><tr><td align="left">''After only several minutes under load, we get this picture, showing us the heat production compared to the 60GB is nearly the same at the rear vents at 47 C.''</td><td>[[File:IR 0031.jpg|200px|thumb|PS3 Thermal Imaging - IR_0031]]</td></tr></table>

<table width="100%" align="left"><tr><td align="left">''Now we looked at the bottom, and it looked quite different compared to the 60GB. Here we can actually see where the fan is located, and we can see that the distribution of heat is much more uniform. This tells us that the heatsink in the 40GB PS3's is much more efficient, even though the overall heat output is about the same. The 40GB is also a lot quieter. My 60GB unit's spins up to high speed mode quick and stays that way. The 40GB's fan speed nearly always stays one "notch" lower, making it nearly silent when gaming or watching a movie. The back of the unit is also a bit cooler than the 60GB, though the side is about the same. You'll notice fewer deep reds on the 40GB images in comparison to the images of the 60GB console.''</td><td>[[File:IR 0032.jpg|200px|thumb|PS3 Thermal Imaging - IR_0032]]</td></tr></table>

''The verdict is still a bit hard to deduce. After all, we know that the CELL in the 40GB is 65nm compared to the 90nm chip in the 60GB consoles, also using about 40 Watts less power overall. Yet, the heat signature is almost the same for both, being slightly more uniform in the 40GB. My guess is, the 40GB does indeed produce less heat, as can be deduced by the much lower weight and smaller heatsink. Thus, it can more effectively transport heat away than the older 60GB model.<br /><br />All in all, I say, Sony engineered quite a nice little piece of machinery here in terms of heat production and dissipation. Today's laptops have CPU's which usually produce less than 25 Watts of heat under load, normally never exceeding 35 watts. PS3 on the other hand can use up to 200 Watts in a case that is not that much bigger.''

'''source:''' http://psinsider.e-mpire.com/index.php?categoryid=3&m_articles_articleid=1160

== Other ==
{{#ev:youtube|nLoijF9-3PA}} '''The Misdiagnosis of the PlayStation 3 Yellow Light of Death'''


{{Motherboard Components}}<noinclude>[[Category:Main]]</noinclude>