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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1304

post #13031 of 38701
Quote:
Originally Posted by Tomha View Post

Thanks for the advice, just a few questions:
1) Is this all using AMD overdrive, or do you suggest I do it through BIOS or something?
2) How would I check stability? What programs would you suggest I use to check stability (and benchmark) and what do I look for?
3) I just want to check, with the cards defaults being 900/1250, going straight to 1050/1450 isn't too fast? The max allowed in overdrive are 1100/1575
4) What is counted as a small (and safe) voltage bump? In AMD overdrive, its measured in %, e.g. +20% max, so what would I do to bump it if it wasn't stable? The same applies to clock speeds, I hear you want to go about 50mhz at a time, is this true?

1. amd overdrive or msi afterburner.
2. 3dmark 11, game benhcmarks with loops.
3. no.
Quote:
Originally Posted by FuriousPop View Post

dont understand why core and mem clocks sitting at idle values!!!
anyone have any clue?
I've just installed the free version from net, cant change any settings at all.

idle not used, normal.

No one use google and research before doing overclocking nowadays?
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post #13032 of 38701
so they are working fine...........phew

When i did some research the graphic scores i found for crossfire were mostly similar or lower to that of mine.

Thats why i thought i just check with the experts first.

never overclocked before..

thanks
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post #13033 of 38701
Quote:
Originally Posted by flopper View Post

No one use google and research before doing overclocking nowadays?

I do, I look up many tutorials, but so often they are airy fairy "it will be different for your hardware", etc. I find it reassuring and nice to have advice on a more personal level in response to my questions. Thank you for your reply smile.gif

I still wouldn't mind knowing what is a small voltage bump percentage wise, and how I will know if its unstable. These are things not always mentioned in tutorials and the likes, its assumed its known, but for someone doing it the first time, its not known.
Edited by Tomha - 7/9/12 at 1:32am
post #13034 of 38701
Quote:
Originally Posted by Tomha View Post

I do, I look up many tutorials, but so often they are airy fairy "it will be different for your hardware", etc. I find it reassuring and nice to have advice on a more personal level in response to my questions. Thank you for your reply smile.gif
I still wouldn't mind knowing what is a small voltage bump percentage wise, and how I will know if its unstable. These are things not always mentioned in tutorials and the likes, its assumed its known, but for someone doing it the first time, its not known.

Normally overclocking using ccc or amd is on defult voltage.
meaning normally it will run that fast without any issue.
stability indicators are, does the computer shut off, does the driver say it has recovered, do you get snow or artefacts when gaming, all indicators of either to high OC memory or core, as a rule, OC core more than memory due to memory is sensitive and dont allow much speed increase.
7900 series, the cooler the better due to heat is a factor.

OC normally is easy and straighforward, trying to get to high dont offer much more speed aka fps due to 30-80mhz isnt that important, 925 to 1200 however is. 1200 to 1280 isnt.

common sense IMO.
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post #13035 of 38701
I installed 12.6 and 3d mark 11 would crash half way through a bench (even at stock) Reverted to 12.4, works fine again.
post #13036 of 38701
Quote:
Originally Posted by FuriousPop View Post

hi all,
wondering if someone can tell me, good bad ugly?
http://3dmark.com/3dm11/3843336
dont understand why core and mem clocks sitting at idle values!!!
anyone have any clue?
I've just installed the free version from net, cant change any settings at all.

What are you overclocked too ? I get around 22K graphic score with 1300/1800 oc with a i7 3770K 4.7 Ghz final score around 17700.

Below is my best run 1305/1850 and 4.9Ghz

http://3dmark.com/3dm11/3800437
Edited by martinhal - 7/9/12 at 3:29am
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post #13037 of 38701
Quote:
Originally Posted by jomama22 View Post

could run it on a 650w but if u overclock (which u should) you will be riding that psu to the grave. An 850w would help but I would get 1000w for the sake of future investment. That i5 2500 is a bit concerning though.

Yeah, I plan to upgrade PSU. But I really wanna see the 7990. I think it could run ok a a 650w unit... I guess we'll have to wait and see.

The i5 2500 could be a bottleneck? It's a non "k" model so I cant overclock it. But in benchmarks etc it boost up to 3.9/4.0ghz. Would an upgrade to a i7 3820 (is this overclockable?) with an x79 be worth it? Or am I better of selling the i5 and grabbing a i5 3570k or maybe a i7 2600k?
post #13038 of 38701
Quick question, a mate bought a Sapphire 7970 OC (950MHz) and both Trixx and Afterburner are capping his voltage at 1.212 with the 12.7 beta drivers. I never had this issue myself so am unsure of why this is happening.

Also weird is, his card artifacts in heaven at 1175MHz at 1.212v even though the card tops out at 59c.
Edited by Tslm - 7/9/12 at 3:54am
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post #13039 of 38701
My new sapphire hd7970 dual-X oc thumb.gif
450
I7 INSIDE..
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post #13040 of 38701
Quote:
Originally Posted by antonis21 View Post

My new sapphire hd7970 dual-X oc thumb.gif
450

drool.gifdrool.gifdrool.gifdrool.gifdrool.gifdrool.gifdrool.gif

I want that cooler so bad. drool.gif
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