Monitors Black Screening "no signal" / Fans Ramp to 100% HELP | CyberPowerPC UK | Page 1

fossil pagoda Jul 26, 2025, 3:09 PM

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Not sure if anyone else is experiencing this or has in the past:

Got my PC from CyberPower in April and all was good. No issues at all. However, over the past few weeks I've been getting really intermittent black screens that show "no signal" (as if I've unplugged the HDMI/DP cables out of the GPU. This is quickly followed by my fans ramping up to 100% and having to hard restart my PC with the power button.

Initially, I thought it was a faulty GPU - so had it RMA'd and CyberPower quickly sent out a replacement. However, the issue is still happening.

After googling, asking friends and even resorting to Chat GPT for help, I'm now thinking this is a faulty PSU, MoBo or PCIe slot. I have re-seated my RAM too.

When I say intermittent, I mean this can happen within 2 minutes of booting or within an hour to 2 hours of playing a game. It happens while idling, and just happened whilst I was typing this message. It's so weird and I've never experienced this before.

I resorted to checking Event Viewer and there are quite a few errors showing. Google seems to think these are fairly common and shouldn't be causing this issue. (See image).

If anyone has any knowledge or feels like helping, feel free to DM me!

Thanks

earnest sphinx Jul 26, 2025, 3:11 PM

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what are your PC specs?

fossil pagoda Jul 26, 2025, 3:15 PM

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earnest sphinx what are your PC specs?

CPU: i7-14700KF (20 Core)
RAM: 32GB DDR5 Corsair Vengeance
MOBO: MSI PRO Z790-P WiFi
PSU: Corsair RM850X 850W
GPU: GeForce RTX 5070 - 12GB

Let me know if you need to know more :)

earnest sphinx Jul 26, 2025, 3:15 PM

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is your BIOS up to date

fossil pagoda Jul 26, 2025, 3:16 PM

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I believe so

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how can i check this, quick? I'm pretty new to PC's

earnest sphinx Jul 26, 2025, 3:18 PM

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if you open "System information" and screenshot these 3 areas it should say the BIOS version

fossil pagoda Jul 26, 2025, 3:18 PM

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earnest sphinx Jul 26, 2025, 3:20 PM

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have you updated the BIOS since you got the PC?

fossil pagoda Jul 26, 2025, 3:20 PM

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No

karmic heraldBOT Jul 26, 2025, 3:20 PM

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cprgbglitch :tada: Congrats @fossil pagoda, you levelled up to 1! :tada:

earnest sphinx Jul 26, 2025, 3:20 PM

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i strongly recommend you do so

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https://www.msi.com/Motherboard/PRO-Z790-P-WIFI/support

fossil pagoda Jul 26, 2025, 3:21 PM

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I'll look into this now

earnest sphinx Jul 26, 2025, 3:21 PM

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there have been issues with intel 14th gen CPUs - updating bios fixes those issues

fossil pagoda Jul 26, 2025, 3:21 PM

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Tell me if im an idiot, but can i just click on drivers and downloads from the link you sent

earnest sphinx Jul 26, 2025, 3:22 PM

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there's a guide specific to MSI motherboards here - i recommend following it if you're unsure

fossil pagoda Jul 26, 2025, 3:22 PM

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Thank you

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Ok updated BIOS. I'll message here if it happens again. Anything else you'd suggest?

earnest sphinx Jul 26, 2025, 3:31 PM

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keep an eye on temperatures too - they could be playing a part in this

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though it's unlikely because of it happening while idle

karmic heraldBOT Jul 26, 2025, 3:31 PM

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HWiNFO

Download either the Installer or Portable version
For temperatures, run in Sensor Only mode.

earnest sphinx Jul 26, 2025, 3:31 PM

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it's always good to be sure

fossil pagoda Jul 26, 2025, 3:32 PM

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I initially thought this was an issue, but temps seem fine.. Weird Ill download that and keep an eye on them. Thanks for your help!

karmic heraldBOT Jul 26, 2025, 3:32 PM

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cprgbglitch :tada: Congrats @fossil pagoda, you levelled up to 2! :tada:

fossil pagoda Jul 26, 2025, 4:23 PM

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earnest sphinx it's always good to be sure

Unfortunately, still happening after bios update

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Temps were fine

earnest sphinx Jul 26, 2025, 4:24 PM

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hmm alright - i think you should download OCCT and run a CPU stress test - to see if that triggers a crash

i recommend running it for an hour - just to be sure that the CPU can handle a sustained load

karmic heraldBOT Jul 26, 2025, 4:24 PM

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OCCT

earnest sphinx Jul 26, 2025, 4:25 PM

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as you said the issue is intermittent so it can be a little more difficult to diagnose

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just a quick side question though - is your PC plugged directly into the wall, or is there an extension lead (or similar) between your PC and the wall?

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also - WhoCrashed might (small chance given the type of crash) tell us more information about what went wrong - so feel free to see if there are any reported crashes there

karmic heraldBOT Jul 26, 2025, 4:26 PM

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WhoCrashed

fossil pagoda Jul 26, 2025, 4:36 PM

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ill have to run the stress test tomorrow, as going out tonight. But will check on that.

WhoCrash can only detect crashes from a while ago that aren't relevent to this crash.

My pc is plugged in through an extension lead, but i can plug it directly into the wall - however ive never had an issue caused by extension leads

#Monitors Black Screening "no signal" / Fans Ramp to 100% HELP