These old boards doesn't switch VCORE in the same manner at new ones.
PLT_RST_BUF_L goes high?
PLT_RST_BUF_L goes high?
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[SOLVED] 820-3662 Vcore Present @1.72V No Chime
- Thread starter brunomotter
- Start date
brunomotter
Member
PLT_RST_BUF_L - 3.3V
Apart of known good BIOS, you can try heating PCH and CPU.
Possibly bad CPU.
Continue inspecting for some corroded resistor, or trace.
Pay atention to SPI Bus Series Termination resistors and their traces.
Possibly bad CPU.
Continue inspecting for some corroded resistor, or trace.
Pay atention to SPI Bus Series Termination resistors and their traces.
brunomotter
Member
Do you have a known good BIOS for me to test? Maybe the one I have here is bad... Will check the resistors... Could not find any corrosion and already tried heating CPU, will try also the PCH.
brunomotter
Member
R6123 was reading 203ohms. Replaced it and worked! Thanks!