Can my Crystal Super be causing my PC to reboot?

Pimax Hardware Pimax Crystal
1

I picked up a new rig in March and up until recently, it only got very light use. However, I recently started doing some regular VR simming and I began having an issue where the PC would randomly reboot itself. No error message or anything, just a sudden, clean reboot. It could happen while I was running a game, or while I was doing nothing, for instance, shortly after a normal boot process. I did check the system logs and saw there were critical errors causing the reboot due to an Event 41, Kernal-Power issue with a bugcheck code of zero.

I brought the PC back in to the retailer, they ran all sorts of diagnostics and found nothing wrong. I brought it home and not long after, the problem started again. Also, after a few reboots, its not uncommon to lose video signal altogether. If I shut down for awhile, it will boot normally again. In any event, I unplugged my crystal super Micro-OLED and have not experienced the problem since.

System specs are the following:

AMD Ryzen 9 9900X3D 4.4GHz Processor

MSI Mag X870E Tomahawk WiFi

NVIDIA GeForce RTX 5080 16GB GDDR7

64GB DDR5-6000 RAM

2TB Solid State Drive

Microsoft Windows 11 Home

360mm AIO Liquid Cooler

1000 watt PSU

In addition to the VR headset, I also have a triple monitor setup and the system is connected to a KVM switch with two other rigs. Both other rigs run fine.

Thanks in advance for any input.

2

Have you done the usual troubleshooting, like isolating the machine to be no kvm, a single monitor, default BIOS setup, GPU running at stock speeds, etc?

3

I’m in the process of doing that now, I suppose. I started with unplugging the crystal. So far, the problem has not occurred with the crystal out of the ecosystem.

Since I want to actually use the crystal, my next test will be to reincorporate the crystal and perhaps unplug one of the monitors.

I guess I’m also wondering if anybody else has had this problem or heard of it being a possible problem.

4

Kernel voltage sounds to me like when the CPU is being pushed (using the headset) some voltage regulators are messing it up. You should check your BIOS CPU configuration. Do some CPU-Z stress tests without the headset and see if it also then occurs.

5

Thank you. What would I be looking for in the Bios configuration and how do I do a cpu-z stress test?

thanks.

6

I did a “CPU-Z” stress test and all appeared good. Everything remained steady and there was no reboot. However, I only ran it for a few minutes. How long am I supposed to keep the test going?

7

Have you checked windows event log to see what it says about the crashes?

1 Like
8

Yes. See the above from the OP.

Thanks.

9

If all bugcheck parameters are “0” then I would test your memory. The reason I mention that is because in some cases you will get that because of the stop error and the dump file doesn’t get written. Check the event viewer for an error 6008 before the 41. Check the mini dumps and see if anything was written. Use Whocrashed app if needed. If memory tests show everything good then I test the rails on your PSU.

10

A kernel problem indicates a power fault. In Event viewer you may see a fault with nvlddmkm. This is the Nvidia driver which will always fail after a power issue. I had this problem around eighteen months ago and it drove me crazy trying to find a fix..I eventually upgraded my PSU from 850W to1200W and have not had the problem since. I would have thought a 1000W PSU should be plenty, but VR is very sensitive to power fluctuations.

1 Like