Need help pinpointing bad mobo or CPU

jeej281

Prominent
Oct 17, 2017
2
0
510
Specs (no overclocking done):
OS: Win 10 Pro 64 bit
Mobo: ASUS Maximus IX Hero running BIOS 1009
CPU: Intel i7-7700k
Cooler: NZXT Kraken X62
GPU: EVGA GeForce GTX 1080 FTW
RAM: 2x8GB Corsair Vengeance DDR4 2133MHz
SSD: Samsung 850 EVO 500GB
HDD: WD 2TB 7200rpm

So for the last week or so my pc has been stuck in an infinite BSOD loop showing stop code ACPI_BIOS_ERROR and rarely PAGE_FAULT_IN_NONPAGED_AREA. It's so bad that I can't even boot with any of the safe mode options or use system repair, they all bsod too. It initially happened in the middle of a game where windows gave a blue screen saying that it had to restart and it hasn't been able to boot since then. I'm 99% certain this is a hardware issue at this point and I've all but narrowed it down to a bad mobo or CPU, but I need help figuring out which one it actually is. I've done a quite a bit of troubleshooting but none of it is resolving the loop. So far I've...

-Updated BIOS to the latest version (1009)
-Cleared CMOS
-Reset BIOS to factory settings
-Made sure everything was seated and connected properly
-Thoroughly ran memtest86, RAM is good. I let it go for 8 passes with both sticks in and 8 passes on individual sticks in every slot, no issues found.
-Disconnected HDD, wiped SSD and tried a clean install of windows - boot manager loads some files and then it bsods. Doesn't even make it to the initial install screen. I've tried installing windows 10 with 3 different USBs and tried in 2.0 and 3.0 ports. All the ports work but the install doesn't.
-Tried installing win 7 from a disc - same behavior as 10. Loads the initial files and then bsods.
-Disconnected GPU and hooked up an hdmi, no change.

The mobo is giving the all good code and BIOS is working 100%, but as soon as I try to do anything with an operating system it just bsods over and over again. This is making me err on the side of a bad cpu but I'd like to get other opinions before I go about getting a new one. Thanks.


Edit: Yup, looks like it's the board after all. Socket has quite a few pins bent out of place. No idea how it even happened but thanks for the help.
 
Solution
Did you test psu and ram slots and possible shorting out? Most of the time, if it really is between cpu or motherboard, 90% of the time its motherboard with 10% being cpu. It is rare for a cpu to be bad. IT guys go 20 years and see only 10 bad cpu's in there life times. However, for the motherboard you can look for obvious things like blown caps or bent cpu socket pins. Other than that, if you know for sure its either motherboard or cpu and no obvious things wrong, then assume motherboard until proven wrong.
Did you test psu and ram slots and possible shorting out? Most of the time, if it really is between cpu or motherboard, 90% of the time its motherboard with 10% being cpu. It is rare for a cpu to be bad. IT guys go 20 years and see only 10 bad cpu's in there life times. However, for the motherboard you can look for obvious things like blown caps or bent cpu socket pins. Other than that, if you know for sure its either motherboard or cpu and no obvious things wrong, then assume motherboard until proven wrong.
 
Solution