Computer just powers down? PSU?

AlexTrickle

AlexTrickle

AlexTrickle

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So I got my new (well 2nd hand off MM) graphics card today: Sapphire R9 290.

Fresh install of windows, all drivers, program installations go perfectly zero problems/crashes/errors.

Go to play Rift (not a particularly graphics heavy game) and after about 2 minutes my PC just powered down. No BSOD or anything just powered off.

I downloaded Furmark to stress test the GPU and literally within 5seconds of starting the burn-in test the PC powers down.

Due to it not being an error/crash I'm inclined to say this is a power problem? However my last gfx card was a GTX680 which had no problems with my Silverstone Strider 750W PSU?

Side point: My GTX680 was powered by 2x 8pin connectors. For aesthetic purposes I used two pre-braided 6+2pin connectors (worked fine with the GTX680) but the R9 290 has 1x6pin & 1x 8pin so one of the braided cables just has the +2 hanging loose. Could this be an issue?

So specs:

i5 2500k
8GB Crucial Ballistix RAM
MSi P67A-GD65
Samsung F1 1TB HDD
5x 120mm + 1x 140mm Xigmatek LED fans (on fan controller)

All the above is unchanged.

New today:

Crucial M500 240GB SSD (swapped out 2x Crucial M4s for this)
Sapphire R9 290 (swapped out MSi GTX680 Power Edition)

All works perfectly on desktop/light tasks e.g. browsing just as soon as I load the GPU it powers down.

Any advice/help would be greatly welcomed :)
 
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wazza300 said:
it should be fine if you've plugged in a 6pin and 8pin power plug,the two hanging arnt needed

could be psu idk how much more those cards would need

try setting power control slider to 20% in ccc/overdrive

when it went off there were no coloured screens?
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Yup the 6pin and 8pin are definitely plugged in.

Where is this power control slider you're mentioning?

Also there were no coloured screens or anything. Instant shutdown and then reboots itself a second later.
 
Just compared the TDP of the GTX80 vs the R9 290 and its approximately 100-125W more for the R9 290. Still a 750W PSU should easily handle it (handled SLI GTX460s before the GTX680).

This might lead me on to a spec me a PSU (R9 290 crossfire capable).
 
wazza300 said:
how old is your current psu?

anything seasonic is a decent psu,if your looking for a new one
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Getting on for four years now I think, never skipped a beat till now though.

Just trying the 20% power control slider. (Didn't realise ccc meant Catalyst Control Center in your first comment... been almost a decade since my last ATi card!)
 
wazza300 said:
its just putting too much a strain now,esp needing 125w over previous card,i didn't think they were that power hungry

4 years is getting on abit also
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Yer its had a long life - ran the Furmark burn-in test again with the +20% power setting and powered down again immediately.

Time for a new PSU I'm thinking which is a bit of a bummer as I'm pretty short on cash right now!
 
wazza300 said:
just use normal gaming to test with,but it will probably shut off just the same

furmark is overly stressfull on gpu's,im just not a fan of it
Click to expand...

Powered down again on Rift - going to look for a cheap (within reason i.e. still a good brand/efficiency) replacement PSU around 850W mark. Ideally would like 1KW+ PSU but I just can't afford that at the moment.
 
LewisStuart said:
Hi Alex, Would say your psu has more than enough juice to power a single 290, they recommend 24A+ on the 12v rail & yours has 60A. have you tried the other two pci-e sockets on the psu?
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Ah didn't see your post Lewis - that is what I thought. If I had known there would be PSU issues I probably wouldn't have bought the 290 due to budget constraints - might bite the bullet and ask parents for a little loan! Will try the other PCI socket and report back.
 
Update: Tried using the other 6pin connection (on the PSU) and this time the Furmark burn in test got over 2minutes in (long enough for the GPU to hit 90degrees and fan speed up) before powering down. Still the same end result though, so not sure this is relevant.
 
Ok so installed my new PSU (second hand SuperFlower 1000W Leadex Platinum from MM) and Furmark burn-in ran perfectly. So conclusion definitely my old PSU not hacking it!

Side note: Very impressive PSU. Dead silent, the cables are really nicely done and the lighting to the connectors is a very nice touch!

Thanks all for their help.
 
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