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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1498

post #14971 of 38740
Quote:
Originally Posted by PureBlackFire View Post

Quote:
Originally Posted by pioneerisloud View Post


Don't say its "not a difference". That's untrue. For some people, their card overclocks higher. For some the limits are the same, and for a small percentage, it doesn't work at all.

My card used to max at 1175 / 1600 on the stock reference cooler. With the GHz Edition BIOS, I was able to get 1200 / 1800 out of it rock solid on the reference cooler.

I stand corrected.

To be fair, it doesn't mean its worth the flash. Although if you've got a reference card, you've got dual BIOS's. And the flash only works on reference boards...... So just backup your original BIOS first, and you won't have anything to worry about. If the flash fails and / or bricks your card....blind flash it back to the stock BIOS.
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post #14972 of 38740
Quote:
Originally Posted by pioneerisloud View Post

Don't say its "not a difference". That's untrue. For some people, their card overclocks higher. For some the limits are the same, and for a small percentage, it doesn't work at all.
My card used to max at 1175 / 1600 on the stock reference cooler. With the GHz Edition BIOS, I was able to get 1200 / 1800 out of it rock solid on the reference cooler.

how did you flash it i havent flashed a 7970 before tongue.gif

would like to test it out on my card that i can bench at 1300 see if it helps it get more and my 2nd ones is stuck at arounf 1125 mad.gif
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post #14973 of 38740
Quote:
Originally Posted by KingT View Post

I did a little investigatting and I have found out that my Asus HD7950 DC@ TOP uses reference PCB..
So I decided to flah this new BOOST BIOS from AMD..
All I can say WOW!!! biggrin.gif
This BIOS is awesome!!! thumb.gif
First my card with original BIOS could not go over 1050MHz on the core because adding Voltage over 1.062V would pretty much crash the card.
I have found out by watching in GPU-Z that now w/ AMD BOOST BIOS my card has less Vdroop than on original BIOS..
Before on Asus BIOS when I set for example 1.062V in MSI AB VDDC on VRMs would be ~ 1.01V UNDER LOAD.
Now with AMD BOOST BIOS with the same 1.062V set in MSI AB my VDDC reads 1.04V UNDER LOAD..
That might be a reason of bad Voltage/OC skaling before on Asus BIOS..
Also now GPU temp is bit higher due VRMs supplying more Voltage to GPU (1.04V vs 1.01V before with manual Vcore @ 1.062V in MSI AB)
Before w/ 1.062V my max OC was 1050/1575MHz and now with AMD BOOST BIOS it flys trough games/3DMark 11 @ 1100/1575MHz .. thumb.gif
CHEERS..

Hi I used to be on the p5q deluxe thread, do all reference cards flash to that bios as I'm thinking of getting a 7950 since the prices have dropped massively in the uk?
thanks
post #14974 of 38740
I take it my 7950 isn't a reference card, therefore no new BIOS from AMD which might allow me to overclock it more?
It's got a BIOS switch I'm fairly sure, so I guess I can always try it. I'll look for that now, also how do you blind flash? Just boot up in the second bios? smile.gif

EDIT: I'm also trying to get the most out of the memory possible.. Where should I stop for memory voltage?

Didn't let me flash.. Darn
Edited by Matt-Matt - 8/24/12 at 9:16pm
 
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post #14975 of 38740
Just picked up a Sapphire 7950 Vapor-X from newegg. Now I have to wait for it to get here.
post #14976 of 38740
Quote:
Originally Posted by Matt-Matt View Post

I take it my 7950 isn't a reference card, therefore no new BIOS from AMD which might allow me to overclock it more?
It's got a BIOS switch I'm fairly sure, so I guess I can always try it. I'll look for that now, also how do you blind flash? Just boot up in the second bios? smile.gif
EDIT: I'm also trying to get the most out of the memory possible.. Where should I stop for memory voltage?
Didn't let me flash.. Darn

Don't flash the BIOS. Manual voltage overclocking and setting up a custom fan profile to go with it is better. You should easily be able to hit 1.15 Ghz with a bit of extra voltage. Use Sapphire Trixx and save the profile. Load it up only when you game. Other times let everything be at stock. Thats what I do on my HD 6950.
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post #14977 of 38740
Quote:
Originally Posted by raghu78 View Post

Don't flash the BIOS. Manual voltage overclocking and setting up a custom fan profile to go with it is better. You should easily be able to hit 1.15 Ghz with a bit of extra voltage. Use Sapphire Trixx and save the profile. Load it up only when you game. Other times let everything be at stock. Thats what I do on my HD 6950.

I just leave it at overclocked, as I said it didn't let me flash. It's currently overclocked to 1200MHz core and stock on the memory. My new problem is that it's idling at 500MHz and not 300? rolleyes.gif
 
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post #14978 of 38740
Quote:
Originally Posted by Matt-Matt View Post

I just leave it at overclocked, as I said it didn't let me flash. It's currently overclocked to 1200MHz core and stock on the memory. My new problem is that it's idling at 500MHz and not 300? rolleyes.gif

Is it idling at 500 Mhz even when left at default settings.
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post #14979 of 38740
Quote:
Originally Posted by raghu78 View Post

Is it idling at 500 Mhz even when left at default settings.

Yes..
It's weird, it was then I ran the Furmark benchmark (MSI Kombustor) and now it's at 300MHz? I dunno, the only thing that annoys me is that it idles at 30c while on 300MHz but at 500MHz it idles at close to 40c. I guess it's not really a problem though, I'll make a custom fan curve later smile.gif
 
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post #14980 of 38740
Quote:
Originally Posted by Matt-Matt View Post

Yes..
It's weird, it was then I ran the Furmark benchmark (MSI Kombustor) and now it's at 300MHz? I dunno, the only thing that annoys me is that it idles at 30c while on 300MHz but at 500MHz it idles at close to 40c. I guess it's not really a problem though, I'll make a custom fan curve later smile.gif


It's the driver. Initiating a 3D load will temp fix it. However, next time you boot, clocks will get stuck again. Rinse repeat.
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