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ASUS P8Z68-V PRO based i7 system random lockup before or after POST, ideas?

post #1 of 12
Thread Starter 
Hey folks, this is my first post so please be gentle

I recently built myself a new PC for multimedia production with the following specs:

Case: Cooler Master Centurion 5 II
Motherboard: Asus P8Z68-V-PRO
CPU: Intel CPU Core i7-2600K [not overclocked]
Memory: Corsair 16GB (4x4GB) Vengeance DDR3 1600MHz CL9 (CMZ16GX3M4A1600C9)
Graphics: Asus nVidia GTX560 TI
SSD: Corsair Force GT 120GB SSD 2.5"
HD: Western Digital 2TB Black
Optical Drive: Lite-On Blu-Ray/DVD/CD Writer (IHBS212)

USB peripherals used during fault repro:
  1. Microsoft Ergonomic Keyboard 4000
  2. Logitech MX1100 Receiver
I have been experiencing extremely random (sometimes 1 in 5, sometimes 1 in 50) lockups during boot. These have generally occurred as follows:
  1. As soon as you power on PC, screen is black, no POST. I can confirm the video card is giving out a signal because my monitor doesn't mention a lack of signal.
  2. Just before Windows loads, when the cursor is blinking, it just blinks forever
Even more rarely I've seen the following (only seen 2 - 3 times in total):
  1. Keyboard not detected even though it's plugged in
  2. Computer reboots itself just before Windows starts
I've been troubleshooting the issue non-stop for the last 2 weeks to get to the bottom of it but still haven't fully resolved it (although I might of partially helped it out).

So far, I've performed the following steps:
  • I've removed as many USB devices as possible and reproduced the power on freeze with just my keyboard and mouse connected
  • I disabled all onboard peripherals except LAN and USB3
  • I updated my BIOS to 0706
  • I updated my SSD firmware to 1.3.2 (from 1.3), I believe this may of repaired the freezing just before Windows loads but I have reproduced the freeze on power on after this update
  • I ran memtest on my RAM and after 7 passes, no errors were found, so I can only hope it is actually OK
My remaining actions are:
  • Clear CMOS
  • Set RAM latency and voltage manually rather than allowing ASUS board to do it
Do you have any ideas why this might be happening? Would you suggest anything else for me to try?

Thank you so so much for all your help!
Zambz
Edited by zambz - 10/11/11 at 3:22am
post #2 of 12
have you run memtest86+ to check all your memory?

Comps
post #3 of 12
Thread Starter 
Quote:
Originally Posted by compuman145 View Post
have you run memtest86+ to check all your memory?

Comps
I'm sorry I forgot to mention that I did also test the memory using memtest. I let it run overnight with no errors found after 7 passes

I'll update my original post with that info too.

Cheers
Zambz
post #4 of 12
In which case it sounds like an issue with the board. It's either that or a dodgy mount for your CPU.

When you've got it to boot up, can you run intel burn test. See if that crashes your machine.

Comps
post #5 of 12
Thread Starter 
Quote:
Originally Posted by compuman145 View Post
In which case it sounds like an issue with the board. It's either that or a dodgy mount for your CPU.

When you've got it to boot up, can you run intel burn test. See if that crashes your machine.

Comps
Great idea mate, will give it a try now and let you know how it goes.

Thanks for your help!
Zambz
post #6 of 12
Thread Starter 
I ran the Intel Burn Test at Maximum for 3 cycles with no issues, I may run this overnight to burn it in further but for this 30 min run, everything went well.

Any further suggestions would be great

Cheers
Zambz
post #7 of 12
Since it's having issues with booting, Memtest passed 7 cycles, IBT didn't crash your machine, it's more than likely the motherboard. I would suggest an RMA of the board tbh.

Comps
post #8 of 12
Thread Starter 
Quote:
Originally Posted by compuman145 View Post
Since it's having issues with booting, Memtest passed 7 cycles, IBT didn't crash your machine, it's more than likely the motherboard. I would suggest an RMA of the board tbh.

Comps
Thanks for your help. Keep in mind that this is only happening 1 time every 50 reboots sometimes, it's not consistent. That's what is making it so hard to track down and I don't think ASUS will accept the board as it works 95% of the time.

I have been reading on a few posts relating to boot issues that a few folks enable "Power On By PCIE", do you think this is something that could help? I'll be resetting the CMOS tomorrow too, didn't end up having a chance to do so today
post #9 of 12
Thread Starter 
Little update on this one. Unfortunately symptom 2 has been reproduced after a cold boot this morning so the SSD firmware update didn't do anything useful

I'll be trying the CMOS reset tonight and hoping for the best.

Cheers
Zambz
post #10 of 12
Thread Starter 
Attempted enabling "Power On By PCIE" too to no avail, I have reproduced the issue many times now, including the keyboard not found error.

CMOS reset coming up, but I don't have high hopes.
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