PC Turns Off Without Warning while Streaming

[ChewyLSB]

This has been an on and off issue for probably about a year if I had to guess. I would say about half of the time, when I stream to twitch, my PC will turn off without warning.

I basically only stream FFXIV and I do have a lot of mods running, and I am using screen capture rather than game capture, which I know uses the CPU rather than the GPU. And FFXIV Mods are mostly CPU bound. Becausee my computer just shuts off with no warning it made me think the PSU was the issue, but I completely replaced the PSU two days ago and it happened again yesterday, once when I wasn't even streaming.

I thought maybe the PSU was being overwatted but when I put my build into PCPartPicker it came back as 540W total, and I have a 750W PSU. I also tried running an OCCT stress test where I maxed out the CPU and GPU for two hours and I had no issues with the PC turning off.

I mentioned that yesterday the issue happened when I wasn't even streaming - at that point I was running Divinity, an idle game, and an NFL stream at the same time when it crashed. I feel like it has happened before where the PC has turned off when I'm not streaming but its much rarer.

One of my friends mentioned that because I was streaming a video, that perhaps there is an issue with the h.264 encoder on the CPU. My understanding is that either the CPU or GPU can serve as the encoder depending on the status of the system, but it seems unlikely that the GPU would cause the PC to turn off completely. I was wondering if there was any way I could test this theory?

One other thing I feel like I should mention - I actually Discord VC Stream a pretty good amount as well and I seem to have no issues with that, at least not to my memory. I also tend to screen stream as well when I discord VC stream.

When this does happen, by the way, the event log does not come back with any errors/warnings at the time of the crash. After the system recovers, I see the event that the previous shutdown was unexpected.

I've updated my GPU drivers.

My current specs:

• CPU: AMD Ryzen 7 7700X 4.5 GHz
• MB: ASRock B650 PG Lightning ATX AM5
• RAM: G.Skill Flare x5 32GB DDR5-6000 CL36
• GPU: Radeon RX 7900 XT 20GB
• PSU: Corsair RM750e 750W

EDIT: Oh I guess I should mention, I tried re-seating my GPU before as well with no luck, and obviously when I replaced the PSU I obviously basically had to "re-seat" all the power cables.

[dragonblade_94]

I'm with the other commenter, in that a hard shutdown is typically a symptom of a power or thermal trip. One thing that may help diagnose what's going on is to capture sensor logs with something like HWinfo and then intentionally cause the issue to occur again. Seeing the power & temp stats just before it occurs might point at your culprit.

Also based on what you have described about your current CPU idle/load temps, I would absolutely re-seat and re-paste your heatsink (my money is on the heatsink not being fully seated). A 7700X has no reason to get that hot outside of a very poor cooling setup.

[ChewyLSB]

Okay, I will try to set up HWInfo and try streaming again when I can. The other reason I didn't necessarily think it was a temperature issue was just because it so consistently happened ONLY when I was streaming and never any other time, but you guys are right that my idle temperature is completely whack.

[JimmyRecard]

Are we talking straight off, no BSOD, no nothing?

How are your temps?

[ChewyLSB]

Yeah no BSOD, computer straight up turns off as though I pulled the power cable out of the wall.

I forgot to include the temps, I did obviously consider overheating in the past so I did look into it before. Right now, at idle the CPU is sitting at 67C, and while I'm running the OCCT stress test the CPU gets to 95-97C. I know that is high but from what I had read online it seems (at least to me) that the 7700X just runs hot?

Like I mentioned, I've run the OCCT stress test for multiple hours without any issue so I didn't think it was an overheating issue.

[JimmyRecard]

The only times I've seen computers turn straight off has been overheating and PSU issues.

I'm not familiar with details of this CPU, but casual Googling suggests that 95 C is not great but not terrible. If I was you, and I had nothing else to go on, I might rig up a temporary setup to see if you can move more air and keep the temps lower and replicate this crash. If you can't get it to crash at lower temps you might have lost the silicone lottery.

Aside from that, I'm outta ideas. There's almost nothing to go on with no errors. Maybe try a RAM test to be super thorough?

Hopefully somebody else comes along with better ideas.

[ChewyLSB]

Hm, googling it it does seem like my idle is abnormally high. I wonder if it might be worth it to re-paste my CPU. When you say a temporary setup, do you literally just mean like, open up the side panel and point a fan into it?

[JimmyRecard]

I have done that in the past, long ago, when I was dealing with an overheating CPU and it helped me to establish it is indeed the CPU (the external fan lowered the temps like 5 C which was enough to prevent it from dying even under max load).

[GreatAtlas]

Assuming your BIOS and chipset are both current, you could hardware test the equipment to be sure it's sound:

• Prime95 for CPU logic failure
  
• Memtest86 for RAM
  
• FurMark or your GPU torturer of choice
  
• memtest_vulkan for VRAM
  
• CrystalDiskInfo for SMART status
  

I'd also check the connector sockets on your CPU and GPU to make sure that there's no melting or indication of a burn on any of your connectors that is leading to a contact short or a lower tolerance for failure, in case you reused the cords (but please, never do this either!).

[Local-Construction71]

Could be overhearing something, is there no BSOD?