My PC has gone on the blink

steviet32

steviet32

steviet32

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Joined
16 May 2012
Posts
93
All,
Disaster has landed on my doorstep. My PC won't power on at all. Previous to this last night it shut down for no reason. 4 months ago I upgraded my Motherboard and CPU to :

ASUS - TUF X570-PLUS GAMING AM4
AMD RYZEN 7 3700X

So I am not sure if the MB is the issue, or MY PSU has gone up the blink.

CPU thermals look fine

Any ideas?

Update
When left for a while it started up again, but then screen went blank and PC rebooted.
 
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I would check to see if the PSU is supplying the correct voltages using a multimeter or a PSU test if you have one. If the rails aren't stable, the PC will drop out as you explain.

https://forums.overclockers.co.uk/posts/19335172/


If the PSU voltages are fine, then the next point of call would by the VRMs on the motherboard. There's no easy way to test that unless you can swap out the board for a known working board.

How long have you had it?
 
The QLEDs display fine on bootup and complete.
PSU is approx 10 years old. Corsair TX750 V2.
I am only using 8 pins of the 12 CPU ATX pins that are on the motherboard. When I built it forum advise was that these are for overclocking.

My Calculated PSU requirement is 535W. So what PSU would you recommend if I have to buy new?
 
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ok so I booted it up and left it on whilst monitoring the voltages via AI suite. Low and behold the 12V line was perfect for 20 mins but then started dropping. I turned my PC off at 10.8V.
So it appears to be the 12V line on the PSU. Not sure if the VRM would do this?
Any recommendations for a PSU? Make model etc. Looking to get a 750 watt again as this is 200watt above my requirements.
 
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535 is a lot for a modern system, what are your specs?

You could try plugging in the extra 4 pin connector? It probably won't help if it's dropping that low, but could be worth a try.
 
I'd make sure everything is properly seated and connected.

If your PSU is fine for 10 years you change motherboard and CPU and now you have an issue 4 months later.

Not discounting the PSU, it is getting on a bit and if your new setup is using more strain than the old it could be the tipping point. But I'd definitely do the basics first.
 
Tetras said:
535 is a lot for a modern system, what are your specs?

You could try plugging in the extra 4 pin connector? It probably won't help if it's dropping that low, but could be worth a try.
Click to expand...

I have the following:
Ryzen 7 3700x
32GB DDR4
1 x SSD
2 x 7.2k HDD
1 x PCIex WIFI
4x USB 3.0 Devices
6x USB 2.0 Devices
(Oculus Rift CV1 and sensor attached so more power draw)
Zotac AMP Gtx1070 8GB

When I calculated power I put in RTX 2080 Super as may upgrade GPU soon
 
BUDFORCE said:
I'd make sure everything is properly seated and connected.

If your PSU is fine for 10 years you change motherboard and CPU and now you have an issue 4 months later.

Not discounting the PSU, it is getting on a bit and if your new setup is using more strain than the old it could be the tipping point. But I'd definitely do the basics first.
Click to expand...
BUDFORCE said:
I'd make sure everything is properly seated and connected.

If your PSU is fine for 10 years you change motherboard and CPU and now you have an issue 4 months later.

Not discounting the PSU, it is getting on a bit and if your new setup is using more strain than the old it could be the tipping point. But I'd definitely do the basics first.
Click to expand...

Yes will do. Worth a try.

Cleaned PSU fans when i fitted it and my case has a dust filter so unlikely to be thermal
 
Mr Mcgoo said:
have you got a friend with a spare psu? if not maybe buy a cheap one for testing purposes for the future.
Click to expand...
This is a good idea if you know someone local - at least you could confirm it's the PSU then without spending.
PSUs are a super handy thing to keep in stock (and an old graphics card) - doesn't even need to be high wattage or amazing quality if it's only use is for a bit of testing when things go titsup
 
I have read admiral huddy's link on diagnosing PSU. The link says a volt drop by 5% is acceptable. So that's 11.4V. I based my assessment on that.
Unfortunately I do not know anyone local who has spares.
 
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steviet32 said:
PSU is approx 10 years old. Corsair TX750 V2.
Click to expand...
That was tech wise low end PSU already as new.
I would say it's time to move to at least only 10 year old tech PSU.
PSU stock situation is just really horrible.


steviet32 said:
When I calculated power I put in RTX 2080 Super as may upgrade GPU soon
Click to expand...
No sense to buy heavily overpriced per performance card now with next-gen few months away.
Heck, next Xbox will have 2080 Super level GPU in raw power and with architecture improved from current AMD cards can see it performing better.
 
Yes I was told not to buy graphics card in Jan until new nVidia gpus come out. I only used 2080 Super as a worst case.

I've ordered a new PSU anyhow. Went for the Seasonic Focus GX 750 Gold. Old one needed replacing anyway and if it does go pop wouldn't want to risk my hardware.
 
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