Was running apt-get update, not paying a whole lot of attention but I’m assuming updating the proprietary nvidia drivers caused the promt to ‘disable secure boot’. Fine by me, so I continue, it asked to provide a password that to enter upon reboot. I reboot. Boom, computer won’t POST.
So I flip the dual BIOS switch to into the backup BIOS. Computer is able to POST, loads the original factory BIOS setting, and boots directly into Windows, the default boot loader for that BIOS (usually I boot into GRUB). I also go into BIOS and disable secure boot but I cannot recall if I was able to succesfully boot afterwards.
Figured it was time to clear the CMOS, and since the battery was dead, replace that while I’m at it. I changed the battery and put the jumper to clear the CMOS. Afterwhich, neither BIOS A or BIOS B will POST.
Trying to diagnose the issue but I’m drawing blanks. My guess is the culprit was that the ‘disable secure boot’ crap somehow fucked up my BIOS but I figured clearing the CMOS would resolve the issue, instead it seems to have exasperated the situation.
Since the computer was able to boot into Windows from the other BIOS configuration I don’t suspect hardware malfunction to be the culprit, except potentially having damaged the motherboard and maybe other components while clearing the CMOS.
I don’t have a motherboard speaker but I’ve ordered one to see if it can help me diagnose the problem.
Don’t have another X99 system where I can test the CPU or RAM.
Here’s what I’ve tried so far:
- Removing all peripherals besides CPU, RAM and switching to a basic GPU I have laying around with VGA.
- Trying using only one RAM stick, in different slots.
- Removing the CMOS battery and leaving in the jumper over night.
- The BIOS LEDs both light up for BIOS A, but only BIOS B for BIOS B
- Sometimes the CPU fan won’t spin up, other times it will. Haven’t been able to reproduce a procedure for when it does and when it doesn’t.
- One time I was able to get a blank VGA signal, ie. the monitor was blank but without the ‘no-signal’ prompt.
Any suggestions or input on how to diagnose this further?
- MSI x99s
- 2x8GB Corsair DDR4
- MSI 1080ti
- Corsair RM850 850W
- Ubuntu 16.04
- Windows 10
I’m not Wendel, but I’m signing out