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[Official] The AMD Radeon 7800 Owners Club - Page 157

post #1561 of 4099
What type of tests should I run after overclocking? I was gonna day it at 1100/1450 with AMD Overdrive.
post #1562 of 4099
Quote:
Originally Posted by mojoe24 View Post

What type of tests should I run after overclocking? I was gonna day it at 1100/1450 with AMD Overdrive.

Crysis Warhead/Crysis 2, these two are best, i used them with lot of graphics card, and they always find instability before every other game/bench.
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Green Hell
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post #1563 of 4099
Anyone running crossfire 7870's in Eyefinity (5760x1080)? Curious as to how they're performing... specifically in BF3 and pCARS.

Just got a significant scholarship check from school... Thinking about doubling up with a DD 7870 and picking up two more Acer monitors which I'll need for coding regardless. That's the excuse I tell my wife anyway..
post #1564 of 4099
My ASUS 7870 seems to be running hot. I had it at 1100/1450 and idle it was 36 degrees. Lowering it back down to stock speeds hasn't helped lower it either.
post #1565 of 4099
Thats normal, and it wont make a difference because at idle it throttles down to 2d clocks (very low, around the 300mhz mark)
Test it using furmark or ugine heaven mark
post #1566 of 4099
I was testing two 7870 hawks yesterday (I bought one and a friend bought one as well) and have several issues. first, the gpu usage keeps jumping between 64% and 100% every two seconds in everything (heaven 3.0, BF3, Metro2033, GW2, etc). that's not so big a deal as it doesn't seem to have an effect on performance. I tested Dirt # and BF3 and performance was not far behind my oc 7950 and gtx670. the games looked and felt exactly as smooth too. except Sleeping Dogs. it was smooth, even in crossfire, but my 7950 played that game like a dream. another thing was that at stock settings the cards would keep down clocking to 450mhz as well. this happened in single card setup and crossfire. it isn't drivers or throttling or anything as I've raised the power limit to 20% from the onset and changed my 2D clocks to the card's default settings. I've also used every driver version that works with the 7870. this seems to be a common issue across multiple brands of 7870 so I wanted to get some insight from the people in this thread. the asic quality of mine is 78% which sounds a bit on the low side. my 7950 was 86%. also, the cards are both poor overclockers imo. mine can't do ANY memory speed above 1275mhz stable and the core can't go above 1175 mhz. needless to say this thing will be going back quickly, but I still want to get an idea about these issues.
Heaven 3.0 (my card) and both cards in CF Dirt 3 max settings 1920x1080 (Click to show)

1175mhz/1275mhz

both cards stock in Dirt3
the beauties (Click to show)

Edited by PureBlackFire - 9/13/12 at 3:19pm
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post #1567 of 4099
^ ^ Have you disabled ULPS ?
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post #1568 of 4099
Quote:
Originally Posted by DizzlePro View Post

^ ^ Have you disabled ULPS ?

I've done it all.
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post #1569 of 4099
That was happening with my card too (Sapphire 7870). I overclocked it as well, the solution was leaving power limit to 0% and only adjusting the voltage. Mine runs 1300/1525 no problem. I run it at 1250/1450 for an everyday OC. Put the power limit to 0% and see if that helps.
post #1570 of 4099
hey guys whats the best drivers to use for the 7870? im using 12.8 atm and im getting some texture pop in etc im trying to work out if its the card or the drivers
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