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XFX HD 6950 2GB Nightmare - Page 3

post #21 of 46
Quote:
Originally Posted by tsm106 View Post
^^It's not a random shutdown.

Shutdown under load = classic psu failure.
Or overheating
    
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post #22 of 46
i just installed my second 6950 today, unlocked shaders on both. works perfect and crossfire scales amazing, actually double fps in most cases. which is what you want.

so i can confirm 850w PSU is fine.

and yeah mine idle @ roughly 38c and i havnt seen running temps coz dunno what program to run.
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post #23 of 46
Quote:
Originally Posted by iRaiden View Post
Or overheating
Cards won't shutdown till you hit past 115c iirc.
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post #24 of 46
i thought 6950's throttled when hot?
Like nvida dose?

I vote psu and try have the case so that the cards face verticaly cause hot air rises

Updatee all drivers could be mobo driver
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post #25 of 46
Quote:
Originally Posted by gtarmanrob View Post
i just installed my second 6950 today, unlocked shaders on both. works perfect and crossfire scales amazing, actually double fps in most cases. which is what you want.

so i can confirm 850w PSU is fine.

and yeah mine idle @ roughly 38c and i havnt seen running temps coz dunno what program to run.
The difference between a brandless 850w $30 power supply and a highly rated gold efficiency power supply such as the AX850 is substantial.
    
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post #26 of 46
Thread Starter 
i just ordered a new psu for $100,its 900W with plenty of cables integrated, including 4 cables(6pin are 2 and 2 are 6+2 with crossfire and SLi ready.After that, ill go and buy better cooling.My psu(800),ill file complaint pretty soon.Thanks for the support but i was thinking of accelerator dual fan i think its called for cooling(air) and a second 120mm fan so it blows from front to back.Keep posting.Just love this site.I checked my psu info,and numbering on voltages isnt real good for crossfire.Ill update that tomorrow with details.
Next investmentSU,Cooling.
Military Veteran so i can afford anything i want,but that psu i have was before being in service.
post #27 of 46
Quote:
Originally Posted by zeroalliance View Post
i just ordered a new psu for $100,its 900W with plenty of cables integrated, including 4 cables(6pin are 2 and 2 are 6+2 with crossfire and SLi ready.After that, ill go and buy better cooling.My psu(800),ill file complaint pretty soon.Thanks for the support but i was thinking of accelerator dual fan i think its called for cooling(air) and a second 120mm fan so it blows from front to back.Keep posting.Just love this site.I checked my psu info,and numbering on voltages isnt real good for crossfire.Ill update that tomorrow with details.
Next investmentSU,Cooling.
Military Veteran so i can afford anything i want,but that psu i have was before being in service.
Whilst the impatient wait for PSU arrival begins, yank out a card & test briefly for stability. Restart & repeat with it's brother. This'll fast narrow out card failure, at least if you can load a game/bench without identical electrical fault.

If it's any consolation, I had a PSU rated for 1200 watts demonstrating the exact same conundrum in dual card operation. Despite my eventual recognition of the PSU & the manufacturer being equally composed of souring excrement, under the circumsances I was confident no such high-wattage device was likely to fail so readily. Quick lesson learned, & there's no two ways about it: lowering budget on the PSU is insipid, asinine, instantly regrettable & an eventual guarantee of absolute misery.

Oh, and if (as I'm confident) you are able to get both cards running independent of crossfire? Please, don't maintain heavy loads on that load of junk. The key is to isolate specific cause; once that's done, grab your arse & get outta Dallas.
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post #28 of 46
Thread Starter 
learned my lesson very well trust me.Buying the psu i currently have(one with shutdown disease),at the time of the purchase it was like 60 and they even told me its the latest in technology.Its been a while since i bought it.Curious thing is First card i ordered worked fine independently. Now when i installed the second, it was a rollercoaster ride. Ill install the latest driver from amd(not xfx as i did) and do some good Benchmark to see how both respond.
post #29 of 46
Quote:
Originally Posted by zeroalliance View Post
learned my lesson very well trust me.Buying the psu i currently have(one with shutdown disease),at the time of the purchase it was like 60 and they even told me its the latest in technology.Its been a while since i bought it.Curious thing is First card i ordered worked fine independently. Now when i installed the second, it was a rollercoaster ride. Ill install the latest driver from amd(not xfx as i did) and do some good Benchmark to see how both respond.
In the future, check with jonnyguru.com before trusting any sales clerk.
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post #30 of 46
Im skeptical about the latest psu as well, 100 dollars for a 900w psu? whats the brand and model?
    
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