[SOLVED] Monitor "no signal" PC "crashed" but running

[Raikko Kiminen]

Hello everyone. Recently I upgraded my PC with 1080 Ti and with it I had to get a new PSU and bought a Gigabyte P650B with 650W (NVIDIA states 600W is enough, but always add more just to be safe) and it ran perfectly until two days ago. I was playing Assassin's Creed Valhalla on maxed out settings and after a random gaming time the monitor went black with "no signal". PC is still "running" in a sense that I can hear it, fans are spinning, but it definitely is completely crashed. Yesterday went alright, played it for about 6h with no problem, but today the same problem happened again after only 40 minutes maybe. So far this has only happened during Assassin's Creed Valhalla, but not in any other AAA game or anywhere at all.

In the Event Viewer I can see the error with ID 6008 (indicates a dirty/improper shutdown, appears in the log when the previous shutdown was unexpected, e.g. due to power loss or BSoD) abut I don't know whether it is there because I had to force shut off by holding the power button when the monitor showed "no signal" and PC literally crashed but was running, or if it's there because of what led to "no signal" before I held the power button.

Does anyone else have any experience with this issue? PC seemingly running but monitor has "no signal" and PC has to be shut down by force.

 

[rgd1101]

return the psu. get a better quality one

 

[Raikko Kiminen]

return the psu. get a better quality one

I see that you're a moderator and I notice all those badges. Could you explain to me why this $70 PSU I bought with 650W is half the price of a CX550? 100W less for double the price. What's the catch?

 

[Raikko Kiminen]

The problem does NOT lie in the PSU, I fixed my issue by adding more voltage in MSI Afterburner. Looks like the GPU was unnecessarily and unsuccessfully undervolted to 950mV and it was getting only that much instead of 1050mV that should be default. As soon as I manually changed that, crash never happened again. If the PSU was the problem, then the WHOLE PC would have turned off instead of just motherboard. Bad PSU makes the PC fully off, nothing works, which was not the case this time, therefore nothing is wrong with the PSU.