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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1356

post #13551 of 38701
Got my replacement 7970 OC (Sapphire) and it's a pile of crap too... lol ASIC of 73.8%
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post #13552 of 38701
Quote:
Originally Posted by BlackWS6 View Post

Got my replacement 7970 OC (Sapphire) and it's a pile of crap too... lol ASIC of 73.8%

I had a GTX 560 ti 448 with a not so stellar ASIC score that could over clock better than any other in its class.

Try over clocking it before putting all your trust in the ASIC score.
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post #13553 of 38701
Quote:
Originally Posted by BlackWS6 View Post

Got my replacement 7970 OC (Sapphire) and it's a pile of crap too... lol ASIC of 73.8%

73.8% ASIC doesn't mean it's crap. My Lightning with about the same ASIC did 1200/1600 on air
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post #13554 of 38701
Both of my Sapphire 7970 OC's are over 85% ASIC. Not the best for water supposedly but we shall see whenever I get my rig sorted finally...
post #13555 of 38701
Yeah, looks like this one will do 1200Mhz core like the last one. It may not have been the freaking card... Got this one in, 12.7 beta's installed, wouldn't even make it through heaven at stock, just like the last one after some time. I think the pair of PCI-E 8-pin leads on this Antec 900W high current (gamer series bs) is weak. Swapped to the other pair and no black screen/lock up *knock on wood* yet.
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post #13556 of 38701
Funny thing is, new card is roughly 5ºC Cooler than the last one with the same fan profile lol. I'll take it!
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post #13557 of 38701
Quote:
Originally Posted by BlackWS6 View Post

Got my replacement 7970 OC (Sapphire) and it's a pile of crap too... lol ASIC of 73.8%

Yea don't trust ASIC scores. Mine has a 90.2%, overclocks like crap and runs hot.
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post #13558 of 38701
Quote:
Originally Posted by eternal7trance View Post

Yea don't trust ASIC scores. Mine has a 90.2%, overclocks like crap and runs hot.



Have you tried any other HD7950 BIOS? I tried your BIOS and my card wasn't stable at 1300mhz but with my BIOS my card is stable at 1300mhz no problem.

A different BIOS may help out.

Also your PCB heat sink looks a little weak for your card. You card has a very strong power design and may be heating up with the vram.
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post #13559 of 38701
Quote:
Originally Posted by SonDa5 View Post

Have you tried any other HD7950 BIOS? I tried your BIOS and my card wasn't stable at 1300mhz but with my BIOS my card is stable at 1300mhz no problem.
A different BIOS may help out.
Also your PCB heat sink looks a little weak for your card. You card has a very strong power design and may be heating up with the vram.

Doesn't look that weak it's a solid heatsink plate that covers almost the whole card.

I would try a new bios but don't trust myself. I'm sure my card could OC pretty high but it gets too hot.
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An Angry Robot
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post #13560 of 38701
Quote:
Originally Posted by eternal7trance View Post

Doesn't look that weak it's a solid heatsink plate that covers almost the whole card.
I would try a new bios but don't trust myself. I'm sure my card could OC pretty high but it gets too hot.

I've seen photos of your pcb heatsink. It is 1 piece and covers all the hots spots, the VRM area is very thin, no fins. Not a very good design for such a powerful PCB design.

Heat is definitely part of the problem like you have stated.
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