How to enable additional shaders on Radeon HD 6950

[davetheshrew]

I tried RBE also on my HIS unlocked shader bios.

Changed all clocks to match 6970 clocks plus increased limit - BRICK.

Changed clocks only - BRICK.

Changed only first clock to 880/1375 - BRICK.

Thank God for the backup boot ROM.

Back to unlocked shader bios and also 6970 bios when I want...

rbe 1.27 is for voltage changes ONLY, learn2reading

 

[tecnoworld]

it seems that the highet CCC causes problems. IMHO the best thing to do right now is to use the Asus modded bios I just posted, and then SD to play with voltages and higher frequency.

davetheshrew: I didn't try those commands, yet

 

[LagunaX]

Thanks Dave - I'll wait for RBE 1.28...

I guess I stopped reading after I got an iphone...=)

 

[Flak]

Anyone who flashed to an asus bios to try smart doctor. Do your voltage changes stick between reboots? I'm using what I think is the latest, smart doctor v5.74. I can change voltages, yet if the machine is rebooted when smart doctor is relaunched on boot voltage is displayed as 1.1 instead of what it was set to previously.

 

[davetheshrew]

it seems that the highet CCC causes problems. IMHO the best thing to do right now is to use the Asus modded bios I just posted, and then SD to play with voltages and higher frequency.

davetheshrew: I didn't try those commands, yet

im not saying it will as I dont understand the commands fully but -mb might help as that is the modify command but -padevid is for the device id specifically I belive, might be possible and solve a nagging question??? im hving a go tommorow but if anyones up for it tke heed that this is 99%failproof due to dual bios

 

[davetheshrew]

Anyone who flashed to an asus bios to try smart doctor. Do your voltage changes stick between reboots? I'm using what I think is the latest, smart doctor v5.74. I can change voltages, yet if the machine is rebooted when smart doctor is relaunched on boot voltage is displayed as 1.1 instead of what it was set to previously.

its sh*te, your rubishing this thread with those words, use rbe jk

afterburner will be very very soon. dont bother with sd, it really is sucky at best.

 

[Flak]

Well, I think I may be adding my 6950 to the list of those with bad memory now. Other then heaven, what's a quick test for memory problems?

And keep in mind, this is on a 6950 with fan set manually to 75% at all times. According to GPU-Z temps across the board never went higher then 65C. And I, just tonight, am starting to see corruption when running heaven.

 

[deleted]

Successfully unlocked my Sapphire 6950 to a 6970 two nights ago, and confirmed stability with 2 hours of Furmark. Overclocking to 900 MHz core bricked the card about half a second into Furmark and now I get no video output with either BIOS, although my computer still boots correctly. I was actually able to fumble around with a blank screen long enough to open foobar2000 and start some music playing to confirm.

Looks like I'm the first one with a bricked Cayman? Being special is great.

 

[Crew883]

Hey guys I have a few quick questions that hopefully you guys can help me wrap my head around.

I modded my XFX 6950 bios from the tool used earlier in the thread, and I am only running my clocks at the max allowed by CCC 840 and 1270 on the memory because I am worried about what I have heard about the memory failing . Card runs max 60c in BC2 and other games over the course of a gaming night.

So: 1. How dangerous are my settings for the card? 2. Do I need to have extra power going to the card from CCC if I am just running the modded 6950 extra shaders?

Thanks to the people who put this together too, everything was easy to do and setup.

 

[LongThumb]

Got my XFX HD6950 and flashed succesfully.

Currently running it at 900/1500

I get the feeling that XFX are just softlocking full 6970's.

Add another one to the XFX list, that's 52 outta 52 now right?

 

[itsdanny]

Got another Gigabyte 6950 card. Although, leaving it on Auto fan, anyone getting 100c+ on the other dies (#1, #2, #3)? (10min in Furmark) http://gpuz.techpowerup.com/11/01/12/4gt.png

 

[LongThumb]

Got another Gigabyte 6950 card. Although, leaving it on Auto fan, anyone getting 100c+ on the other dies (#1, #2, #3)? (10min in Furmark) http://gpuz.techpowerup.com/11/01/12/4gt.png

I'm getting high temps on the core, around 91c after about 5 minutes an auto fan so probs getting the same high temps as you.

Roll on aftermarket cooler.

 

[Mirmendis]

Well, I think I may be adding my 6950 to the list of those with bad memory now. Other then heaven, what's a quick test for memory problems?

And keep in mind, this is on a 6950 with fan set manually to 75% at all times. According to GPU-Z temps across the board never went higher then 65C. And I, just tonight, am starting to see corruption when running heaven.

Can you post a screen of your corruption ? Maybe just a driver problem.

 

[dom99]

I have found my temp have decreased using unlocked shaders by about 3 degrees

 

[Flak]

Can you post a screen of your corruption ? Maybe just a driver problem.

Flashed back to a 6950 bios with unlocked shaders and doing a reinstall of the OS (only takes 12mins for a complete clean install from usb drive). Will see what happens after this. My "corruption" issue was that I was seeing ghost images on screen of past images. Like in Heaven I'd see ghost trees everywhere, on the ship, in the sky, etc. Heaven was really the only thing I started seeing this in, so I uninstalled it. Cleaned up remaining mess and reinstalled it hoping it was just messed up for some reason. Same thing occured. So I flashed a modified 6950 bios and am in the process of reinstalling win7 now.

I'd believe it was a driver problem if I was having this issue from the start. But I've been running with the 6970 bios since the 31st and just noticed the problem last night (without any other system changes).

 

[GSG-9]

I think I may be moving to 6950+Shaders.

I opened VLC last night, and my rig stops playing video (VLC window goes black, sound stops) every 15min or so, pauses for around 10 seconds. Then continues. I tried lowering my memory and core clocks but the results did not improve. Temps around 60c as it happens.

 

[niemion]

Decided to reflash the original bios. How do I lock it back once I'm finished?

Since this is the unlock command (atiwinflash -unlockrom 0) what is the lock command?

Thanks

I have the same question, anyone?

 

[Rorima]

2.0.1.11
add Redwood/Cedar support
add lockrom/unlock rom support
update -mb command to support new location of SSID/SSVID rom straps on Evergreen series ASICs

Regards,

 

[dom99]

Ok I have experienced a problem.

Last night everything was fine on modded 6950 bios, however today I enabled trixx to overclock by 10MHz to 810MHz. Nothing huge about this clock speed.

But then there was a slight problem, experienced crashing in games and also my mouse cursor was going all funny, like it had bits missing on the point.

So I thought what have I done since yesterday, ahah trixx, so I disabled trixx and hey presto cursor looks fine and no crashing. I am going to try raising the clocks 10MHz in CCC instead next time.

 

[f0d]

im now getting artifacts in bfbc2 even as a stock 6950
this mod seems to only have problems after using it for a while - at the start i diddnt have any problems, now they are starting to pop up after about a week

the settings are 1920x1200 8xaa all high
the artifacts im getting are black and white "blobs" in the middle of the screen every now and again
http://www.youtube.com/watch?v=KDHvow6ILpQ

 

[wmblalock]

It seems more and more are having permanent problems after this mod every day. I don't *yet*... we need to find out the root cause of this. I don't understand people having permanent card damage though after simply modding their stock 6950 bios to enable shaders. I don't see why that would permanently damage the card, if those shaders are defective, they should be disabled and all should be well after going back to the stock bios. So I guess we need to find out, everyone who has permanent card damage, did you ever use a 6970 bios? Whats your overclocking situation?

 

[f0d]

everyone who has permanent card damage, did you ever use a 6970 bios? Whats your overclocking situation?

i used a 6970 bios and at first i had it overclocked to 940/1375 without error
when i started having problems i first went back to stock 6970 speeds (880/1375) then i went back to the 6950 bios that came with it at stock speeds (800/1250)

still getting errors and its getting worse and worse

 

[Wijkert]

It seems more and more are having permanent problems after this mod every day. I don't *yet*... we need to find out the root cause of this. I don't understand people having permanent card damage though after simply modding their stock 6950 bios to enable shaders. I don't see why that would permanently damage the card, if those shaders are defective, they should be disabled and all should be well after going back to the stock bios. So I guess we need to find out, everyone who has permanent card damage, did you ever use a 6970 bios? Whats your overclocking situation?

I started out with 6970 bios @ 880/1375. Artifacts appaired within a copple of days so I flashed in the unlocked shader bios and kept the clocks at stock speeds (6950). The artifacts where less noticable, but still there so I flashed back my original bios, but still the artifacts remained. I agree that it is weird that this mod would cause these problems, but maybe those shader units where disabled for a reason. Either that or we somehow damaged the memory when we flashed the 6970 bios in and use't the card for a copple of days. I am seeing artifacts in both GTA4 and the Heaven benchmark. A screen of the GTA4 artifacts can be found a copple of posts back. If someone has a theory I would be happy to hear and/or test it.

 

[wmblalock]

I created a poll here: Poll: What caused your flashed 6950 perm...
For you guys who have permanent damage to your 6950 cards after flashing them or modding your bios. If you guys could vote in over there, maybe we can start to find out the root cause of what's killing these cards. If I had to guess, I think it's the high memory speeds, or possibly some sort of memory timings in the 6970 bios.

 

[yonef]

Flashed mine XFX 6950 back to original
Mouse pointer started to scramble while in windows at idle clocks. 2 days already with stock BIOS no problems so far, hopefuly haven't perm. damaged it.

P.S. I want to know, have the guys flashed with modded 6950 bios, have some sort if issues?