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Random shutdowns on OC'd System. - Page 2

post #11 of 20
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Quote:
Originally Posted by jach11 View Post
It might be the power supply as this only happens when your stressing both right? I have a feeling its the psu. Thermaltake psu's arent the best. Could you grab a kilowatt meter and just hook your rig upto it and see how much power is being pulled? I really think its the psu.Try only 1 video card and go back to stock and see if it still does it. If it stops its most likely the psu.
This is only one card. HD5970 is a dual GPU card. I don't have a kilowatt meter, I'll have to grab one soon to test it.

Edit: It's also 80 degress under load WITHOUT my overclock. It's a brand new card as well, no need for cleaning. It's just a hot card on account of the dual GPU.
post #12 of 20
Oh lol .I read 5870. It might definitely be the psu. DO you have another psu on hand?
post #13 of 20
Thread Starter 
Not right now no. Just put our last spare one into another computer.
post #14 of 20
Sounds like PSU slowly dying, exactly what happened to me a few years ago.

Are the shut downs occurring at stock clocks too then?

OK now that I've given it some more thought I really want to say its just the PSU, I got such a bad headache I dunno if I feel like look up the max appropriate temps for the hd 5970, lol, but I'm assuming you're ok. 100C though wow.

Also how long have you had the PSU?
Edited by donkrx - 8/22/11 at 1:18pm
    
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post #15 of 20
Thread Starter 
Nah, not any closer together or anything. I just played Just cause 2 on Eyefinity for about an hour... since my last post at stock and it didn't restart me a single time.

So, I think I've definitely narrowed it down to being either a bad GPU overclock, or a lack of power. I'll get a kilowatt tester as soon as I can to test it.

Any ideas what the minimum should be? (This is always a tricky question.)
post #16 of 20
Quote:
Originally Posted by Lithnor View Post
Hacks:
No form of blue screen, simply acts like I pulled the plug.

As for the heat issue: The HD5970 is a notoriously hot card, much like the Fermi series. It's not 80 at idle as Code Geass understood, this was under full load.

I'll check heat at non OC'd clocks real fast.
That is so incorrect, 80°c is alot. Oh wait you probably reply and say is not.
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post #17 of 20
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Quote:
Originally Posted by insyxion View Post
That is so incorrect, 80°c is alot. Oh wait you probably reply and say is not.


There's really no reason for any sort of hostility here.

I was simply sighting another review that shows that theirs runs at 86 degrees at stock.

I've gone through THREE of these cards now (because of problems with the ports) and they have ALL ran at 80 degrees. That seems to be the normal temp for a dual GPU card.

If you'd like to explain to me how I can lower the temperatures in a ~60 degree ambient with a stock cooler, then I'm all ears. My case flow is fine, the rest of the hardware's heat is fine... it's just the GPU.

Once again, there's no reason for any type of hostility here. If you want to get angry, I advise you to simply leave the thread.

Thanks for the help everyone.
post #18 of 20
Quote:
Originally Posted by Lithnor View Post
Nah, not any closer together or anything. I just played Just cause 2 on Eyefinity for about an hour... since my last post at stock and it didn't restart me a single time.

So, I think I've definitely narrowed it down to being either a bad GPU overclock, or a lack of power. I'll get a kilowatt tester as soon as I can to test it.

Any ideas what the minimum should be? (This is always a tricky question.)
Minimum power for your system? You should be fine with that. There's a wattage calculator somewhere, go to the Overkill PSU club and there's a link there for calculating power needs. Great wattage calculator there.

Were you able to run Furmark and Prime together on the overclocked settings for an hour with no shut downs? How exactly did you test via Furmark and Prime (fyi its generally not recommended to test both at the same time, but in this case it might be a good option)?

I mean what I'd do is first play 2 hours of games on stock clocks to rule that out, then play 2 hours on a reduced but known stable OC (like just drop the clocks and leave the voltage). Just take it one step at a time, have a plan and a methodology and rule things out one at a time. Like taking components out of your computer when a brand new build is failing. You gotta pinpoint it.

Also get a temp monitoring utility that will log the GPU temps so if you crash you know the max temp. You said before you shut off the computer it was 100C, but what you really want to see is what the temp was when it shuts itself off.... for example if it was 99C last recorded when you reboot... you'll know that its not the GPU temp causing the shut downs. But if its 112C or something then its still possible.
    
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post #19 of 20
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Quote:
Originally Posted by donkrx View Post
Minimum power for your system? You should be fine with that. There's a wattage calculator somewhere, go to the Overkill PSU club and there's a link there for calculating power needs. Great wattage calculator there.

Were you able to run Furmark and Prime together on the overclocked settings for an hour with no shut downs? How exactly did you test via Furmark and Prime (fyi its generally not recommended to test both at the same time, but in this case it might be a good option)?

I mean what I'd do is first play 2 hours of games on stock clocks to rule that out, then play 2 hours on a reduced but known stable OC (like just drop the clocks and leave the voltage). Just take it one step at a time, have a plan and a methodology and rule things out one at a time. Like taking components out of your computer when a brand new build is failing. You gotta pinpoint it.

Also get a temp monitoring utility that will log the GPU temps so if you crash you know the max temp. You said before you shut off the computer it was 100C, but what you really want to see is what the temp was when it shuts itself off.... for example if it was 99C last recorded when you reboot... you'll know that its not the GPU temp causing the shut downs. But if its 112C or something then its still possible.
I mostly test with actual games rather than prime and furmark. I've only ran them together a single time as I've been told it's not something you should do often. It ran then, but it's been a decent amount of time as well.

Don't know I didn't think about running them at stock with the voltages set to the overclocked values.... that's the best idea I've seen so far.

It wasn't at 100C when I shut it if, that's what everywhere says the card itself will shutdown at. (Which I assume is much like what I'm getting, as I've never actually reached those temps.) The temp on the card when it shutdown earlier was around 80, as that's what it runs at under load.

I'll try to play at stock setting save voltages and see how that works, that's such a good idea. Thanks!
post #20 of 20
Oh I see when you said 100 max you meant that's what the card's max temp is, not the max temp you ran at. I'm a bit tired, damn, that went right over me.

Let us know what happens with the next test.
    
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