PSU faults *fixed should i be concerned?

adamg64

adamg64

adamg64

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People may have seen my other post as regards computer issues I had, Computer failed to post.

After listed my problems and spec people were quick to point out my old hiper psu was the problem.

Which did seem right after some advice I went for the EVGA 750w G2 which I picked up that day went home and tried it once again it failed to post.

This was either now looking like cpu or mobo after deciding against spending more money to try and troubleshoot this I made the 300mile round trip to a friends who had a spare everything.

His test rig ran perfect with most of my components posted on all tests just before we proceeded to swtich the mobo we decided to try the new EVGA on the test rig all his components and it didn't post faulty unit?

I tried his 1200w corsair and my system posted and booted to windows it had to be a faulty/duff unit.

By this point my head was steaming and thought I was supplied a faulty unit return it to the shop the guy was cool and ran it on his test rig in the shop it was a basic intel system but the EVGA posted fine my head was blown at this point.

Was something else at fault? with his 1200w posting on mine I just assume it wasn't getting enough juice even tho the 750 evga had more than enough, I returned it and went on a hunch to get more power I exchanged for the 850w corsair.

Installed last night and posted first time pc has been running fine now, This is abit confusing and my friend seems to believe I could still have issues and the extra power could be pumping extra life out of other faulty components.

Sorry for the huge post and I hope you can read it and give your two pence on it :D ty
 
The original thread for reference:
http://forums.overclockers.co.uk/showthread.php?t=18703224&page=2

This is confusing. There is no way that your system should need an 850W PSU:

990FX SABERTOOTH
AMD 8320 - closed loop cooler
290X R9 ATI GFX - closed loop cooler
16GIG VENGEANCE
256SSD
3TB DRIVE

That lot should run fine on a good quality 500W unit or preferably a 600W/650W unit. The FX chips are more power-hungry than the Intel chips, but that shouldn't make much difference.

The fact that the EVGA unit failed to get 2 PCs to POST suggests that there was something wrong with it.

At the moment your system seems to be behaving, but you can't rule out the possibility that there might be a motherboard issue.
 
Yea very odd that the more powerful psu's were working fine, the old hiper was an 880w but just feel ive got a ticking time bomb on my hands and its ready to die any moment :(
 
I think your friend is definitely onto something in believing there is an underlying issue other than the PSU. It could be the motherboard, but until something goes wrong again, you won't know.
 
been home this evening an hour now, the GF said she was on pc and it crashed twice this morning but it ran fine for me and last night was gaming a good solid two hours.

I have just experience 4 crashed in past hour two different types.

two it completely shut down and two keyboard/monitor/mouse cut out but computer/fans were still running.

Totally baffled on where to go from here getting to the end of my tether :(

after every crash its posted and booted to windows every time
 
teenwolf said:
290x gives black screens, i had one that did it and so many others have had the same issue.
Click to expand...

wow don't even go there with gfx, was hoping that was safe!

But going to my previuos issue before this psu my old gfx didn't post either so hoping its something else or nothing!
 
I'm not familiar with the 290X black screen issues, but teenwolf could potentially be onto something. Black screens/hard reboots seem to be a known issue (possibly down to VRAM overheating) but I can't see anything about the keyboard/mouse thing.

Which version of the 290X do you have?

This still doesn't explain why the new EVGA PSU did not work with your friend's hardware. What was his spec by the way?
 
friends rig was 8gig ram ,V formula mobo , 1100T cpu and 4670 gfx.

also computer recently just crashed in bios, I was only trying to change the time and date settings
 
When you say crashed in BIOS, was it a black screen event, or did it just freeze/reboot. If it isn't stable in the BIOS, that could point towards the motherboard, RAM, CPU, graphics, PSU. With the different PSUs you've tried, I really can't believe it's another PSU issue.

Given that it seems to be crashing at random, even if you're not gaming, you could try putting the 8800GTS/another spare card back in and leave it like that for a couple of days. If it still keeps on crashing, then you know it's not the graphics card.

Yes it will mean you won't be able to play any demanding games, but if it doesn't crash, then it would suggest a graphics issue. If it still crashes (quite likely I reckon), I would think you can be fairly sure it's a motherboard/BIOS problem.

Maybe a dumb question, but is the 290X plugged in using one PCI-E cable from the PSU or two separate ones. Apparently some people found that using two different power cables helped...I don't think it'll make any difference in this case, but I suppose it's worth trying.
 
Borealis said:
When you say crashed in BIOS, was it a black screen event, or did it just freeze/reboot. If it isn't stable in the BIOS, that could point towards the motherboard, RAM, CPU, graphics, PSU. With the different PSUs you've tried, I really can't believe it's another PSU issue.

Given that it seems to be crashing at random, even if you're not gaming, you could try putting the 8800GTS/another spare card back in and leave it like that for a couple of days. If it still keeps on crashing, then you know it's not the graphics card.

Yes it will mean you won't be able to play any demanding games, but if it doesn't crash, then it would suggest a graphics issue. If it still crashes (quite likely I reckon), I would think you can be fairly sure it's a motherboard/BIOS problem.

Maybe a dumb question, but is the 290X plugged in using one PCI-E cable from the PSU or two separate ones. Apparently some people found that using two different power cables helped...I don't think it'll make any difference in this case, but I suppose it's worth trying.
Click to expand...

its a single splitting module cable in gfx, could be worth a try, I will test the other gfx tonight also and try and stress test it as best I can on the 8800.

I have spoke to the store I got psu and asked the question if I buy a new mobo and its still a problem I can return it and get a refund or exchange against other components

looking at something like this for a mobo replacement I no its a step down but I don't wanna be getting into a 150 quid board again as im already 100 quid into a new psu.

https://www.overclockers.co.uk/msi-970-gaming-amd-970-socket-am3-ddr3-atx-motherboard-mb-286-ms.html
 
If tonight/tomorrow you can prove it's still crashing without the 290X, then it's pointing to the motherboard. If it doesn't crash using the 8800, then it could well be the 290X causing some issue.

If it does come down to a new board:

TBH if you're not going SLI/Xfire, then there's no need for a 990X/FX chipset. The 970 chipset will be fine. If you're not overclocking, then that MSI seems to be a pretty good choice.

For £70, a new mobo and a clean install of everything may well fix the problem, but the graphics card needs to be ruled out first.
 
yea going to try those tests this evening , need to find a suitable replacement gfx now just in case, ive made another thread to get some advice on a replacement
 
If the instability is down to the memory controller, increasing the voltage may stabilise it. Symptoms can include random crashing and BSODs.

I've had to up my memory volts because at 4.2GHz, my 4670k wasn't stable.
 
Borealis said:
If the instability is down to the memory controller, increasing the voltage may stabilise it. Symptoms can include random crashing and BSODs.

I've had to up my memory volts because at 4.2GHz, my 4670k wasn't stable.
Click to expand...

A break through maybe? well the voltage didnt work also tried two separate cables on gpu not good either.

Computer still boots and random drops, crashes and restarts, loading up a game escalates this rapidly cannot even play.

I removed my 290x and installed the 8600gt (thought it was a 8800gts)

Tried to play csgo and battlefront but it wouldnt run either but managed to run Left for dead2 which i had installed wacked settings to the max i could on this card seriuosly it runs like a bag of **** 5fps max lol

But so far its been running fine for hour and half we may have a diag folks!

Going to leave it a little longer actually thinkning of running it over night just to test
 
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