5970 grief (diagnosis: cold bug)
Replaced my Sapphire 4870X2 which was working flawlessly with a XFX HD5970 Black Edition on Friday and since then I've had issues...
Once I start playing a game it's generally ok and faster than my 4870X2 was (not jaw droppingly but I wasn't expecting that anyway), although I have had some very peculiar things happened - like really artifacts come up once while Mass Effect 2 was loading a level and then disappear completely as soon as it loaded.
One serious issue is that it appears the 2D clocks are set too low to be stable?? They're 157/300 core/memory by default and this results in regular "Driver has stopped responding and was restarted" errors. Checking forums people said you have to create a profile and set the idle clocks to something like 400/900. Since I've done that I've been ok on the desktop but it's still pretty ridiculous.
Oh, and I've got no manual fan control at all in CCC - apparently the card needs a BIOS update out of the box to fix it!?
Lastly a couple of times I've come out of playing a game for hours only for Windows to freeze solid a few seconds after being on the desktop. I can only assume at this stage that this is somehow related to the 157/300 clocks being erroneously set or something, I don't know.
I was all set to sell my 4870X2 to recoup some funds but now I'm not so sure.... the only saving grace is that it doesn't seem like the card is fundamentally faulty because I can play games for hours with no artifacts or whatever. I guess it's a really bad driver problem coupled with too low 2D clocks in the BIOS?
For reference I'm using a Antec Signature 850W PSU which should surely be enough?
Only other possible element is that the card is installed on my Asus P5W64 WS Pro motherboard which is 975X and PCI-E 1.0a. Still flies though!
Interested to hear everyone's thoughts...
Replaced my Sapphire 4870X2 which was working flawlessly with a XFX HD5970 Black Edition on Friday and since then I've had issues...
Once I start playing a game it's generally ok and faster than my 4870X2 was (not jaw droppingly but I wasn't expecting that anyway), although I have had some very peculiar things happened - like really artifacts come up once while Mass Effect 2 was loading a level and then disappear completely as soon as it loaded.
One serious issue is that it appears the 2D clocks are set too low to be stable?? They're 157/300 core/memory by default and this results in regular "Driver has stopped responding and was restarted" errors. Checking forums people said you have to create a profile and set the idle clocks to something like 400/900. Since I've done that I've been ok on the desktop but it's still pretty ridiculous.
Oh, and I've got no manual fan control at all in CCC - apparently the card needs a BIOS update out of the box to fix it!?
Lastly a couple of times I've come out of playing a game for hours only for Windows to freeze solid a few seconds after being on the desktop. I can only assume at this stage that this is somehow related to the 157/300 clocks being erroneously set or something, I don't know.
I was all set to sell my 4870X2 to recoup some funds but now I'm not so sure.... the only saving grace is that it doesn't seem like the card is fundamentally faulty because I can play games for hours with no artifacts or whatever. I guess it's a really bad driver problem coupled with too low 2D clocks in the BIOS?
For reference I'm using a Antec Signature 850W PSU which should surely be enough?
Only other possible element is that the card is installed on my Asus P5W64 WS Pro motherboard which is 975X and PCI-E 1.0a. Still flies though!

Interested to hear everyone's thoughts...
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