Unlock your ATI 6950 to a 6970 Thread

iTek · 10 Mar 2011 at 07:58

Does anyone know why my (MSi) 6950 wont adjust further then 950Mhz on the Core clock through CCC or Afterburner please?

Do I need to change the BIOS to 6970?

Puppetmaster · 10 Mar 2011 at 08:17

You probably need to enable unofficial overclocking. Im sure theres either an option in msi afterburner options or you need to edit the config file for afterburner.

iTek · 10 Mar 2011 at 08:21

Thanks, I cant seem to find a setting, the only ones I see are voltage related.

I assume i'm on a 6970? BIOS since my default core clock speed is 880Mhz now?

Ok, ive had to modify the config file for Afterburner, got it now, thanks.

philip j fry · 10 Mar 2011 at 18:31

Just got myself a sapphire 6950 and i'm intending to flash but just want to know before i do if anyone after flashing has had any problems with there cards ( after a period of time)
thanks

philip j fry · 10 Mar 2011 at 21:03

just flashed mine sitting @ 880/1375

had to run in cmd as winflash did'nt work in windows.
my temps seem a tad on the hot side tbh idle they are ok @ 44 but under load they hit around the 90 mark does anyone elses sit this high?

[timko] · 10 Mar 2011 at 21:29

philip j fry said:
my temps seem a tad on the hot side tbh idle they are ok @ 44 but under load they hit around the 90 mark does anyone elses sit this high?

Temps are fine, my idle is a bit lower but then my room is quite cold at the moment seeing as I haven't got the central heating on.

Loz · 11 Mar 2011 at 00:27

Mine idles at around 60 and reaches 90 under load.
This is an ASUS 6950 with the standard ASUS 6970 BIOS tweak.
Seems high to me in a big well ventilated case.
I'm waiting for my extended bridge before running the second one as it just doesn't get enough airflow with them in adjoining slots.
Anybody else getting similar??

Andrei23 · 11 Mar 2011 at 02:18

I am getting 38-9C (idle) to 72-3C (load - games) on average. The highest I've seen it go was 82C after 5 hours of OCCT. This is with a flashed 6950@70 too

philip j fry · 11 Mar 2011 at 10:05

Thanks for replies good to know my temps are fine.
Has anyone tried using trixx overclocking utility yet , if so how does it compare with others.
Thanks

kevy1986 · 11 Mar 2011 at 15:42

Hey guys,

I just received my 2nd MSI HD6950 today, I have flashed it to 6970 shaders and voltages, not clocks, I made my own bios. I have been using afterburner to up the clocks when I had a single card. Now when I try to use afterburner to change clocks it crashes to BSOD. I have disabled ULPS as I read in forum this may stop it but has not worked.

What would be the best way to take this forward, just flash both cards to 6970 or can I fix the afterburner BSOD ?

Also I have ran some benchmarks, there is a huge difference on Heaven about 100 percent which is great. However i've been testing on BFBC2 which is the main reason I went for crossfire. I am running at a res of 6114 * 1152 ( eyefinity ) I have in increase of about 10 fps when running at this res on crossfire. When I run at native res on one screen I get a huge increase of about 40 fps. I take it this is normal and it's just because the resolution is so high ?

Kyaw25 · 12 Mar 2011 at 11:28

Hey guys, when do you reckon OCUK will stop stocking Rev 1 unlockable 6950s?

I want to know because i should be purchasing it next month and dont want to get Rev 2 cards..

Andrei23 · 12 Mar 2011 at 13:28

You can always give ocuk a call and verify that what you are buying is indeed rev 1. I would expect them to have them next month as well, and maybe for quite a while indeed, as they are quite popular.

Wingz · 12 Mar 2011 at 19:01

I've unlocked the shaders only and clocked the card to 880/1375 and while running furmark the Gpu Core fluctuates constantly from anywhere between 660 to 880 :/ do you know what the problem is?

EDIT: i ran heaven benchmark and the core stayed at 880 so the problem is with furmark i guess

Flyby · 13 Mar 2011 at 17:16

Hey, I didn't go through all the posts, however would it be possible to crossfire 2 cards.

MSI HD6950 flashed in to HD6970
with a full fledged MSI HD6970

trigger-happy · 13 Mar 2011 at 18:18

I successfully flashed my 2x Asus ATI Radeon HD 6950 OC 2048MB GDDR5 to a 6970.

Here is some proof. Also what settings should I use in CCC?

Bengie25 · 13 Mar 2011 at 19:42

Wingz said:
I've unlocked the shaders only and clocked the card to 880/1375 and while running furmark the Gpu Core fluctuates constantly from anywhere between 660 to 880 :/ do you know what the problem is?

EDIT: i ran heaven benchmark and the core stayed at 880 so the problem is with furmark i guess

Change your Power Control to +10% or higher. The card's wattage is capping out.

Wingz · 13 Mar 2011 at 23:19

Bengie25 said:
Change your Power Control to +10% or higher. The card's wattage is capping out.

thx for the reply, i've read its the Powetune feature kicking in. Setting Power Control to 10% or 20% doesn't help though.

trigger-happy · 14 Mar 2011 at 16:55

trigger-happy said:
I successfully flashed my 2x Asus ATI Radeon HD 6950 OC 2048MB GDDR5 to a 6970.

Here is some proof. Also what settings should I use in CCC?

Anyone?

JamboUK · 15 Mar 2011 at 20:15

I flashed the Asus 6950 I bought from OCUK using the 6970 bios but got artifacts at the Windows 7 Desktop and occasionally in Games. GPU Temps were below 70c even after an hour of COD:BO.

Now using this modified Diamond Bios to run with the shaders unlocked and stock 6950 speeds and the artifacts are gone. http://www.techpowerup.com/vgabios/89824/Diamond.HD6950.2048.101123.html

zom247 · 16 Mar 2011 at 15:53

I bought an Asus 6950 and I don't think it has the dual bios on it. Is this ok to flash? I've just been to the shop and the card I bought is no longer available. What's happened to it? I don't want to flash it in case I brick it and I'm also a bit worried about where it's gone.

Ok, found the dual bios switch, looking in the wrong place!

Just tried to flash it following the instructions and I get the following error message:

subsystem ID's mismatch

What am I doing wrong now?