Lights flickered, screens went off, dead GPU

Soldato
Joined
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Posts
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Location
Nuneaton, UK
On Thursday evening I was playing COD Warzone, mid game the lamps in my room flickered a bit and both of my screens went off. The game was still running and I still had Discord working. I shut down the PC and tried a few things to get it back on but nothing worked, the system would no longer POST.

I ordered a new graphics card, at first it wouldn't boot at all, I re-seated the card and reset my CMOS and it booted. I tried my old card again but still no POST even after another CMOS reset.

Now my computer is up and running but some things I have found. 1 rear USB port no longer works, turning on resizeable BAR in BIOS stop the system from posting again and required a CMOS reset.

I have a surge protected power strip.

Did I have a power surge that took out my GPU and caused other damage to my board?

System spec
5800X
Asus B550-I ITX
32Gb 8Pack DDR4
Nvidia 3080 10Gb FE > Asus 3080 TUF 12Gb
Corsair SF750w
500Gb M.2 Samsung 970 Evo

Any advice?

Thanks
 
Most likely PSU/Motherboard but in all honesty any part connected and 'working' could have been fried/damaged in that situation, so it's likely a case of replacing parts in order of likelihood of damage.


One thing I would recommend is changing that surge protector for a UPS, those 'flickers' are quite common round here and the UPS kicks in every time to prevent the type of issues you're experiencing now.
 
Most likely PSU/Motherboard but in all honesty any part connected and 'working' could have been fried/damaged in that situation, so it's likely a case of replacing parts in order of likelihood of damage.


One thing I would recommend is changing that surge protector for a UPS, those 'flickers' are quite common round here and the UPS kicks in every time to prevent the type of issues you're experiencing now.
Yes, I'm already looking at a UPS, any recommendations?

I may be able to put it into a cupboard behind my desk so it's out of the way.
 
Yes, I'm already looking at a UPS, any recommendations?
I've been using an APC Back-UPS 700 (like this but bigger capacity) quite happily for about 5 years (with one set of replacement batteries) which has been fine for covering the basics of flickers and 1-2minute outages. I am looking at something a little more beefy due to a system upgrade(5950x based which seems to run about the same power usage as my old i7 4790k) and planned GPU change (4000 series hopefully on release).

I'm now looking at something like a Cyberpower PR2200ELCDSL (£670) or APC SMC1500IC (£570)which were about the same price but the cyberpower just jumped about £120 (annoying as I was edging that way lol)....
 
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I've been using an APC Back-UPS 700 (like this but bigger capacity) quite happily for about 5 years (with one set of replacement batteries) which has been fine for covering the basics of flickers and 1-2minute outages I am looking at something a little more beefy due to a system upgrade(5950x based which seems to run about the same power usage as my old i7 4790k) and planned GPU change (4000 series hopefully on release).

I'm now looking at something like a Cyberpower PR2200ELCDSL (£670) or APC SMC1500IC (£570)which were about the same price but the cyberpower just jumped about £120 (annoying as I was edging that way lol)....

I have the APC SMT1500i powering my server and network kit, it's probably overkill so I could always use that for my PC and get a different one for my server.
 
I have the APC SMT1500i powering my server and network kit, it's probably overkill so I could always use that for my PC and get a different one for my server.
Depending on locations you can probably use it for both, at least to cover flickering

Not sure what your server is but it depends on whether you want up time or 'safety' if it's really overkill or not but I'm sure you can decide best on that one :)
 
Depending on locations you can probably use it for both, at least to cover flickering

Not sure what your server is but it depends on whether you want up time or 'safety' if it's really overkill or not but I'm sure you can decide best on that one :)
My Server is a Dell Poweredge T30, with my switch and router on the UPS too it reports 12% load. I am certainly thinking I could get a power cable to my PC too.

My server is running a raid array with storage spaces, I was worried about a power cut causing data loss. In the event of a power cut I only really need enough run time for it to shut down safely.
 
My Server is a Dell Poweredge T30, with my switch and router on the UPS too it reports 12% load. I am certainly thinking I could get a power cable to my PC too.

My server is running a raid array with storage spaces, I was worried about a power cut causing data loss. In the event of a power cut I only really need enough run time for it to shut down safely.
I'd try them both together first if you can get a long enough cable.... I'd then check what the load is like when both systems are on full load, albeit unlikely this would be worst case scenario and give you an idea of 'shutdown safety net' times.

The issue might be communication for 'auto shutdown' on power outage, you might need to look into software to tell pc2 to turn off etc if left unattended.

Something like http://www.apcupsd.org/ seems to be an option which you could install on the server.

More info from a thread I found
 
Just to update, I replaced my motherboard and now my system seems to be working normally again. I can turn on Resizable BAR and my memory now runs at the correct speed, as I also noticed it was only running at 2400, when it was set to 3600 in bios.

I'm now running off my UPS, when gaming it reports 50% load. I feel much safer now, I can't afford another repeat of this failure.
 
Depending on locations you can probably use it for both, at least to cover flickering

Not sure what your server is but it depends on whether you want up time or 'safety' if it's really overkill or not but I'm sure you can decide best on that one :)
If its purely for safety would the one you quoted on ocuk's site be adequate for a system containing 9900k, 3090, running on a Corsair SF750 psu?
 
If its purely for safety would the one you quoted on ocuk's site be adequate for a system containing 9900k, 3090, running on a Corsair SF750 psu?
No, it's not really beefy enough at 400va...

Take a look on the apc site to get an idea of what you'd need if you're on full 750w pull but they're basically saying 1000va+ and even then it might only be a minute or 2 coverage unless you spend £500+.

It's not the idle draw which is the issue, it's if you have an outage/flicker when you're in the middle of a game say.
 
If its purely for safety would the one you quoted on ocuk's site be adequate for a system containing 9900k, 3090, running on a Corsair SF750 psu?
Only gaming PC it's fit is laptop or if your gaming consist of playing Minesweeper.
240W wouldn't even be enough for power draw of current mid level graphics cards.
Watts are the meaningfull number in UPSes, not VAs.
And considering power hoggyness of 3090 would consider some 700 W as proper level to leave enough for rest of the parts and monitor.
 
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