Hello,
I've had this PC going with an i7 6700K for years. The other day I walked over to it and it had something like, 'your bios has lost memory, do you want to load defaults or enter BIOS?'. I entered BIOS and it seemed fine, so I just rebooted. Came back later in the day and it will no longer POST. Usually it gets to LED code 32 before shutting itself off. Sometimes it will get past that.
What I've tried:
1. Swapping memory sticks to different slots, booting with 1 stick in every slot, booting with 1 stick of brand new memory in the slot closest to ATX power. All result in same behavior, usually makes it to code 32.
2. Booting with no RAM whatsoever results in a code 55.
3. Boot with an alternate PSU. Code 32.
4. Removed CMOS battery, checked voltage (3.15ish). Held CMOS reset with battery out.
5. Attempted to force dual bios backup read by holding power button and/or powering PSU off during post several times in a row.
6. Force bios backup by shorting pins 1-6 on main bios chip. Note that when I do this, often the board does NOTHING when I flip the power switch. Power button on the board glows, no LED lights, no fans. Not sure if this is normal.
7. Reseated CPU.
8. Checked for visibly bulging capacitors everywhere.
9. Pulled out GPU.
10. Booting in single bios mode.
11. My latest thought was that both bios chips had become corrupted.
So I hooked up a Raspberry Pi with a SOIC8 alligator clips to the BIOS chips on the board, and manually flashed the newest BIOS available (V22) to the main chip with flashrom. This failed to work so I also tried (for no particular reason) V7 and V8. My last attempt was to flash both the main chip and the backup chip with V8 and boot in dual bios mode. This again resulted in code 32.
I note that sometimes after flashing the bios like this, I make it past code 32 to something else that seems different every time. Sometimes 2b? Sometimes 24? 37? Can't be 100% sure this is because I am flashing bios and not just totally random and I am seeing correlations that aren't there.
Also, sometimes when I would flash a bios, attempt to boot a few times, and then read the bios back from the chip, it would be different. Again, not sure how normal this is.
Not sure what to do next other than just buy a new board. I'd be willing to attempt troubleshooting components with a multimeter if anyone has schematics, but I have zero experience doing this and not sure if I could even if I had the schematics.
Any help or ideas would be appreciated, thanks!
I've had this PC going with an i7 6700K for years. The other day I walked over to it and it had something like, 'your bios has lost memory, do you want to load defaults or enter BIOS?'. I entered BIOS and it seemed fine, so I just rebooted. Came back later in the day and it will no longer POST. Usually it gets to LED code 32 before shutting itself off. Sometimes it will get past that.
What I've tried:
1. Swapping memory sticks to different slots, booting with 1 stick in every slot, booting with 1 stick of brand new memory in the slot closest to ATX power. All result in same behavior, usually makes it to code 32.
2. Booting with no RAM whatsoever results in a code 55.
3. Boot with an alternate PSU. Code 32.
4. Removed CMOS battery, checked voltage (3.15ish). Held CMOS reset with battery out.
5. Attempted to force dual bios backup read by holding power button and/or powering PSU off during post several times in a row.
6. Force bios backup by shorting pins 1-6 on main bios chip. Note that when I do this, often the board does NOTHING when I flip the power switch. Power button on the board glows, no LED lights, no fans. Not sure if this is normal.
7. Reseated CPU.
8. Checked for visibly bulging capacitors everywhere.
9. Pulled out GPU.
10. Booting in single bios mode.
11. My latest thought was that both bios chips had become corrupted.
So I hooked up a Raspberry Pi with a SOIC8 alligator clips to the BIOS chips on the board, and manually flashed the newest BIOS available (V22) to the main chip with flashrom. This failed to work so I also tried (for no particular reason) V7 and V8. My last attempt was to flash both the main chip and the backup chip with V8 and boot in dual bios mode. This again resulted in code 32.
I note that sometimes after flashing the bios like this, I make it past code 32 to something else that seems different every time. Sometimes 2b? Sometimes 24? 37? Can't be 100% sure this is because I am flashing bios and not just totally random and I am seeing correlations that aren't there.
Also, sometimes when I would flash a bios, attempt to boot a few times, and then read the bios back from the chip, it would be different. Again, not sure how normal this is.
Not sure what to do next other than just buy a new board. I'd be willing to attempt troubleshooting components with a multimeter if anyone has schematics, but I have zero experience doing this and not sure if I could even if I had the schematics.
Any help or ideas would be appreciated, thanks!
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