Gigabyte GA-Z97X-UD3H Boot Issues

Bhajun

Prominent
Aug 7, 2017
2
0
510
Hi All,

CPU: i5 4690K
Motherboard: Gigabyte - GA-Z97X-UD3H-BK
RAM: 4x PNY XLR8 8GB
SSD/HDD: PNY Optima 240GB SSD
GPU: Gigabyte GeForce GTX 970 G1
PSU: Corsair HX750
Chassis: Corsair Obsidian 750D
OS: Windows 10

My build is ~2.5 years old and has been running great after fixing all of the early issues. My system is in daily use and I have made no hardware changes for ~6 months (added a HD), no BIOS updates for a year or so, and no major Windows updates.

I'm having some very interesting issues with my motherboard, which started from some seemingly irrelevant Windows issues. Briefly, my keyboard effectively stopped working, and after a couple of reboots the entire start menu broke, which was due to certain services no longer being installed correctly (no disk corruption and sfc /now finds nothing wrong). After running those tests and rebooting, I got stuck in a reboot loop.

Unplugging all non-essentials (just have the PSU, CPU, GPU, RAM and cooler on the MB), resetting CMOS, and trying with a single DIMM at a time in slot 1, each boot yields one of two cases which seem to be random:

1) A reboot loop, where 50% of the time I get a POST, a single beep and see the Gigabyte logo, but I am unable to get into the BIOS and it reboots before I can try anything. The other 50% of the time no POST, no beep, no video, and it just reboots after ~10 seconds.

2) No POST, no beeps, no video and no reboot. The case speakers lets out a clicking noise every ~3 seconds, but that's all I get.


Stranger still, I changed the PCI slot for the graphics card and move the single DIMM to a different slot and it boots into Windows! But if I reboot, same issue as I describe above. If I move the DIMM or add another, and move the graphics card back to the other PCI slot, it boots again!


I believe it's fair to say that my motherboard is the culprit and that this is pretty unusual behavior. The motherboard should still under warranty (though who knows how long it would take to get a replacement).

I've read through the relevant threads and checklists without much luck. I just wanted to check if anyone has any thoughts or suggestions that I might try before trying to RMA or just replace it.

Thanks!
 

Lutfij

Titan
Moderator
This looks unclear,
RAM: 4x PNY XLR8 8GB
Can you pass on a link to the ram kit?

Are you on the latest BIOS revision? Did you run memtest86 for at least 10 passes to verify that the ram slots or the rams themselves aren't faulty?

If the board is yet under warranty and you've found out that the ram sticks aren't the culprit(by using another ram kit) then you shouldn't waste time and RMA the board.
 

Bhajun

Prominent
Aug 7, 2017
2
0
510
Thanks for the reply, Lutfij.

Yes, I have the latest BIOS revision.

This is the RAM I have (separate orders, not a single kit): https://pcpartpicker.com/product/f4xfrH/pny-memory-md8192sd31600x9

I have not run a memtest, but agree it would be worthwhile. I had discounted RAM as as the culprit as it did not seem to matter which DIMMS or slots I used. I pulled out some old RAM from another PC to test and I run into the same boot issues as described.

Thanks for the advice, I will run the memtest and RMA the motherboard if that passes.