Editing Hardware flashing
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Tristate, or as it is referred to in the service manuals SB_DISABLE exists solely for the purpose of placing the [[South Bridge]] pins into high-impedance (aka the [https://en.wikipedia.org/wiki/Three-state_logic third state logic]) so that we can access the flash without the [[South Bridge]] interfering. | Tristate, or as it is referred to in the service manuals SB_DISABLE exists solely for the purpose of placing the [[South Bridge]] pins into high-impedance (aka the [https://en.wikipedia.org/wiki/Three-state_logic third state logic]) so that we can access the flash without the [[South Bridge]] interfering. | ||
Because the tristate pin is not connected to the [[Flash_%28Hardware%29#NOR | NOR flash]] TSOP package, but to the [[South Bridge]] BGA package, this makes tracing the pin quite difficult. One should be able to locate it by having the running you could ground out the unknown pins whilst checking the continuity of a known address or data line against ground. These should enter high-impedance or no-continuity when you ground out SB_DISABLE. | |||
Because the tristate pin is not connected to the [[ | |||
=== Connecting NOR pads to flasher === | === Connecting NOR pads to flasher === |