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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 3007

post #30061 of 38701
Quote:
Originally Posted by Recr3ational View Post

Thanks man i have 87.1%
I'm just trying to understand all this shizz out
Thanks again!

Quote:
Originally Posted by Erick Silver View Post

Lucky bastard! I have a 59% ASIC on my 7950.....

Quote:
Originally Posted by ukic View Post

My 7990 asic is 68.9% and 67.5% frown.gif
Waterblock that badboy! That's a great % for watercooling! thumb.gif

Quote:
Originally Posted by Belkov View Post

At first i thought my 59% asics quality is a bad thing, but now i'm happy with it. Low asics also means lower VRM temps. I can hardly reach 1200MHz with almost 1.3v., but my temps are great with a little bit more agressive fan profile. Usualy i play with 1100/1500 MHz and never pass 70 degrees for core and VRMs.

Quote:
Originally Posted by Recr3ational View Post

My second one has 69% so I'm guessing its just luck?

Depends what type of cooling you are using. A higher asic% for air is better as it requires less voltage and in turn stays fairly cool. Lower asic% is definitely better for water cooling, but there is a line. Too low an asic% is going to limit oc and will require so much voltage. If you have a low asic% and a locked card you are definitely stuck. My card has 67% and is a beast. I do wish it required slightly less voltage though. Anything above 1375/1875, it starts to throttle at 1.4v, but doesn't surpass 42*. I would say that 65 - 70% is the sweet spot for unlocked cards. If my card was locked at 1.3v I probably wouldn't be able to push past 1200 core. I'm wanting to sell this card, but I highly doubt if I'll ever own a better one in terms of overclock ability. You wouldn't think it would be difficult, but the lowballers keep it firmly in my rig.
Edited by hotrod717 - 9/2/13 at 4:31am
    
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post #30062 of 38701
so i have a waterblocked 7950 with possibly the lowest asic i've ever seen (57.1%) and it cant even hit 1200, am i expecting too much? mad.gif
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post #30063 of 38701
High asic cards are hotter not cooler
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post #30064 of 38701
Quote:
Originally Posted by sugarhell View Post

High asic cards are hotter not cooler
Haven't owned one, but would've thought less voltage = less heat. I'm sure there is a sweet spot for air cooled as well??

^^ Yes, way too much leakage and I'm assuming you're locked to 1.3v
    
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post #30065 of 38701
55.4% ASIC is mine, locked at 1170mV and 1000MHz core, not possible to OC, mines a perfect example of the worst case scenario of a card sad-smiley-002.gif

side note, I'm also seeing game crashes now even though its at stock, and temps didn't seem to improve after resetting the BIOSs so I don't think it was being overvolted at all either, card seems to actually be dying without even lifting off the ground...
   
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post #30066 of 38701
Quote:
Originally Posted by hotrod717 View Post

Haven't owned one, but would've thought less voltage = less heat. I'm sure there is a sweet spot for air cooled as well??

^^ Yes, way too much leakage and I'm assuming you're locked to 1.3v

open gpuz and check, theyre binned with less voltage because less leakage which means more heat. simples.

btw my 7950 is 59% asic and can do 1250/1750 on a warm day on air
post #30067 of 38701
Quote:
Originally Posted by d1nky View Post

open gpuz and check, theyre binned with less voltage because less leakage which means more heat. simples.

btw my 7950 is 59% asic and can do 1250/1750 on a warm day on air
Your reference to gpuz's table is subjective. Higher asic requires less voltage. In most cases, less voltage equals less heat. Whats your voltage and temp for that 1250/1750 on a warm day? proof.gif
    
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post #30068 of 38701
Quote:
Originally Posted by Paul17041993 View Post

55.4% ASIC is mine, locked at 1170mV and 1000MHz core, not possible to OC, mines a perfect example of the worst case scenario of a card sad-smiley-002.gif

side note, I'm also seeing game crashes now even though its at stock, and temps didn't seem to improve after resetting the BIOSs so I don't think it was being overvolted at all either, card seems to actually be dying without even lifting off the ground...
Yeah, feel bad for you. Luck of the draw. Have you attempted rma? If it doesn't perform properly at stock, they would have to replace it.
    
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post #30069 of 38701
Quote:
Originally Posted by hotrod717 View Post

Your reference to gpuz's table is subjective. Higher asic requires less voltage. In most cases, less voltage equals less heat. Whats your voltage and temp for that 1250/1750 on a warm day? proof.gif

youre missing the point, they ARE binned according to asic quality because HIGH asic (less leakage) has more current/power and MORE heat!

its not subjective, its factored in to the build of the card! just like VID on a cpu!

I haven't got proof of temps but for benching im always @ 1300/1600v (but theyre around 65*c or below 100% fan)



or my firestrike higher clocks

http://www.3dmark.com/fs/762043
post #30070 of 38701
Quote:
Originally Posted by d1nky View Post

open gpuz and check, theyre binned with less voltage because less leakage which means more heat. simples.

btw my 7950 is 59% asic and can do 1250/1750 on a warm day on air
My HD 7970 has a ASIC of 61.5%. I have been up to 1275/1850
 
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