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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1583

post #15821 of 38740
Quote:
Originally Posted by ElevenEleven View Post

That's quite low! My factory-overclocked Sapphire Dual-X voltage is 1.174V according to Afterburner. I definitely don't think it needs that much for a low factory overclock.
I believe the 7970 Vapor-X comes with a voltage of 1.2, which is complete overkill for 1050Mhz. Also, looks like Sapphire has launched another 7950 Boost Card. This time with the Dual-X Cooler and a lower price tag.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202006
post #15822 of 38740
General question: I think it's my Sapphire 7970 that does this, as I hadn't noticed it before, but I could be wrong. In this Antec 902 case, I periodically hear a crackling sound, like the sound of heated plastic settling as it cools. It happens every few minutes to 15 minutes, just a single "click" type sound. Happens mostly when the card gets to a higher load and then when it cools off. I don't even run it at over 70C, and have been tweaking it to run at 67C max in games, with low 70s for VRMs, even if it means not doing a high clock.

Anyone else experiencing this, and is it any cause for concern or perfectly normal for some cards? (Or I wonder if the card is heating up something surrounding it, like the motherboard PCI-E socket, causing this sound).
   
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post #15823 of 38740
Quote:
Originally Posted by Mazel View Post

I believe the 7970 Vapor-X comes with a voltage of 1.2, which is complete overkill for 1050Mhz. Also, looks like Sapphire has launched another 7950 Boost Card. This time with the Dual-X Cooler and a lower price tag.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202006

if it is reading 1.2 it is a bug.
post #15824 of 38740
I just ordered another 7970 to do CFX. Anything I need to do other than install AMD CAP to get ready for it?
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post #15825 of 38740
Just got my Sapphire and what a world of difference!!!!!!!!!!!!!!!!!!!!

I can hear the turbine fan now!!!


Only got a chance to bench as I'm unsure at this point if I'm keeping my rig or not frown.gif


Still working with the ebay seller and trying to get a full refund.
post #15826 of 38740
Just got a 7970 from Visiontek 7970 Reference
ASIC 68.5%
Manage to overclock it to 1225/1600 MHZ, @ 1.237v however I can push further. After 1225 MHZ I get random artifacts tested with Uniengine, Skyrim, Crysis 2.
Will adding better cooling to the core remove the artifacts?
I'm wondering if there is a temperature wall, if keeping it under 59 degrees Celsius would remove the artifacts? or it's a limitation of the core sample.
Edited by MarlowXim - 9/14/12 at 1:36pm
post #15827 of 38740
Quote:
Originally Posted by MarlowXim View Post

Just got a 7970 from Visiontek 7970 Reference
ASIC 68.5%
Manage to overclock it to 1225/1600 MHZ, @ 1.237v however I can push further. After 1225 MHZ I get random artifacts tested with Uniengine, Skyrim, Crysis 2.
Will adding better cooling to the core remove the artifacts?
I'm wondering if there is a temperature wall, if keeping it under 59 degrees Celsius would remove the artifacts? or it's a limitation of the core sample.

I noticed when I was water cooled that I wouldn't get artifacts or errors until I hit ~62°C on higher overclocks. My guess is it is temperature related.
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post #15828 of 38740
Hi, I just recently bought a HD 7950 PCS+ 880 mhz. I got it for $263 on Newegg. I was wondering if that was a good deal or not and also if the card is solid? I've read some reviews but most are from January. Was wondering in terms of performance if the card has gotten better (from drivers etc) and what to expect upgrading from an old GTX 260. Thanks for any input!


Edit: First time ever buying an AMD/ATI card. Kind of nervous lol.
Edited by Aquila2085 - 9/14/12 at 6:02pm
post #15829 of 38740
Quote:
Originally Posted by criznit View Post

Ok I removed 12.9 and put 12.8 back on, removed msi afterburner and left CCC's Overdrive up to check clocks. After a few minutes, my gpu usage will shoot up to 100% while im sitting idle at the desktop. I'm at a lost here frown.gif
Edit: I'm running one monitor thru displayport if that matters.


Interesting.


Can you try this? Follow the manual uninstall process from the AMD how to guide in my sig and clean the drivers out. Don't install new drivers, just boot to windows with the default vga. Let me know if your fan goes crazy.
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post #15830 of 38740
Wow, this sapphire is sweet! Stock clocks she beat the crappy Visiontek (7.9 vs 8.1!!!) I returned. Got her to 1ghz and score went up quite a bit, still on stock voltage. Going to explore some more biggrin.gif




This douche on ebay is just delaying rolleyes.gif. Guy won't take a hint he has the better end of the return (rma that will sell for more). Its always a gamble with ebay. The Sapphire came from a noob seller too but this guy was legit through and through. Internet, can't trust anyone rolleyes.gifrolleyes.gifrolleyes.gif
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