How to enable additional shaders on Radeon HD 6950

[itsdanny]

I'm gonna go out and be the first to say it I guess....

I have a Gigabyte 5950, I am still using the ASUS 5970 bios, I have my mem clocks @ 1250, but I have been using the card for 6+ hours gaming every day since I flashed it maybe 3 weeks ago. I have no artifacting issues.

I am confident at this point my card will not suffer a horrible death from using the 5970 bios. Also keep in mind I have a nasty fan curve that keeps my card @ 36 idle and the fan hits 100% @ 70c.

You do mean the 6950/6970???

 

[GSG-9]

You do mean the 6950/6970???

Haha, yeah, fixed that, for some reason I have it burned into my typing that I am still on the 5 series.

 

[Sebascenso]

I re-flashed the bios, with the original bios modded with w1zzard's mod to enable the extra shaders. I also installed the 11.1a catalyst drivers.
With these changes, all the problems I had (white dust/snow and things dissapearing) were solved.
I have the card oc to 840/1300 using CCC and everything is working fine for now.

 

[Gaul]

Last Update !!!!

 

[manofthem]

So is there a difference between running a 6970 bios OC to 900 or running a modded 6950 with shaders and OCing to say 900/1375 at 1.175v? Does it work to about same thing?

 

[manofthem]

Last Update !!!!

[url]http://img52.imageshack.us/img52/3459/2006yg.jpg[/URL]

[url]http://img823.imageshack.us/img823/3714/vantageh.jpg[/URL]

[url]http://img208.imageshack.us/img208/4306/2011wj.jpg[/URL]

Those are some pretty crazy numbers! I'd be afraid to push my stuff that far.

 

[GSG-9]

Last Update !!!!

[url]http://img52.imageshack.us/img52/3459/2006yg.jpg[/URL]

[url]http://img823.imageshack.us/img823/3714/vantageh.jpg[/URL]

[url]http://img208.imageshack.us/img208/4306/2011wj.jpg[/URL]

I like the sound of 1000Mhz

 

[DJManiac]

Last Update !!!!

More interesting is his OC of 5GHZ at 1,488 VCORE - Crazy

6950/6970 - 1000/1500 is possible with a good cooling!

How much VGPU did you need for your 1000? Once I did 1000 I need around 1,3 VGPU - But only did a short 3DMark11 run - no stability test on this....

 

[dom99]

Anyone know of a date when TRIXX with 6900 voltage support will get released? been waiting ages lol im too impatient

 

[RatusNatus]

So is there a difference between running a 6970 bios OC to 900 or running a modded 6950 with shaders and OCing to say 900/1375 at 1.175v? Does it work to about same thing?

The main difference is the exclusive 6970 AA thing.

I did have 2 BSODs on 2D but no problem in game. Reinstaled the driver(10.12a) and it reconyzed the 6950 again but with shaders.
So, I did replace the Saphire 6970 bios for my original XFX bios with the shaders and no problems so far. also cant OC from Msi OB and it not even show me the voltage.
But i want to go to a 6970 bios with lowered voltage and clocks but with AA and clock unlocked.

 

[GSG-9]

The main difference is the exclusive 6970 AA thing.

There is a difference between Anti-aliasing on the 6970 and 6950?

 

[BZB]

The main difference is the exclusive 6970 AA thing.

There is no difference in AA capabilities between the 6950 and 6970. They both have the new morphological filtering. It's a post-processing filter using the stream processors, and AMD said they'll be backporting it to the 5950/5970 in the near future. In fact there are even hacked drivers that make it work now on the older cards.

 

[dulemk]

So i'v read that there is a problem oc-ing above ccc limit with MSIA if you use unlocked 6950 bios.

But what is wrong with just flashing to 6970 bios?
That way you can just normal MSIA and all should work fine to 950/1450 clocks.

So when new versions of trixx or RBE come out?

TRIXX just need to add voltage and don't disable the 20% power;

RBE add support for more modding so you can lift the ccc limit and than just use MSIAA.

 

[GSG-9]

But what is wrong with just flashing to 6970 bios?
That way you can just normal MSIA and all should work fine to 950/1450 clocks.

There are a lot of people saying there 6950s died/started artifacting after the 6970 flash, and there is no way to get rid of the artifacts. I don't have the issue.

 

[manofthem]

So i'v read that there is a problem oc-ing above ccc limit with MSIA if you use unlocked 6950 bios.

But what is wrong with just flashing to 6970 bios?
That way you can just normal MSIA and all should work fine to 950/1450 clocks.

I've OC'd past the CCC limits with MSI AB to 900/1375@1.15v using the nodded 6950 bios, and everythings runs great! I'm wondering if I load the 6970 bios, can I hit the 950/1450 settings that you mentioned, without further voltage increase?

I keep saying I'm going to try it, but I still havent.

Edit: I remember hearing voltage had to be up to 1.2 to go to 965/14xxx so that answers that

 

[Whoops!]

Remember all cards are not the same. While most 6950 cards use T2C mem chips which are rated at 1250Mhz, there are a few 6950 cards that use the R0C, the chips used on the 6970. Those really lucky folks should have no problems running 1375, while 6950s with the T2C chips are always at a risk. Some T2Cs might not fail at 1375 but some will, especially those with insufficient cooling. I'd stick to 6950 modded bios and overclock only the core, 1250 is good enough and far less risk.

How do I find out if my XFX card (version 1.0) has T2C or R0C?

 

[coldrazor]

Same board here, im curious to know my mem chips lol

 

[SoCalRailRoader]

Clearly not this one!

Kinda rude and stuck up aren't we? Geez, NOT a good way to welcome somebody to the forum, seriously, not good at all. I was kidding with him hence the , but you need to lighten up, I don't know whether you had a fight with your wife or you are just rude all the time, but don't take it out on me.

 

[manofthem]

Remember all cards are not the same. While most 6950 cards use T2C mem chips which are rated at 1250Mhz, there are a few 6950 cards that use the R0C, the chips used on the 6970. Those really lucky folks should have no problems running 1375, while 6950s with the T2C chips are always at a risk. Some T2Cs might not fail at 1375 but some will, especially those with insufficient cooling. I'd stick to 6950 modded bios and overclock only the core, 1250 is good enough and far less risk.

So what will happen if you go past 1250 with the TC2 chips? Will it fail and have the game/benchmark freeze or lock up? Will it permanently damage the chips?

The XFX cards must use higher chips since mine runs higher with no problems

 

[coldrazor]

Mine do 1375 without problems, it`s strange.

 

[ranom]

How do I find out if my XFX card (version 1.0) has T2C or R0C?

Only way to know exactly is to take the cooler off and check the prints on the rams.

So what will happen if you go past 1250 with the TC2 chips? Will it fail and have the game/benchmark freeze or lock up? Will it permanently damage the chips?

The XFX cards must use higher chips since mine runs higher with no problems

Just like when you overvolt & overclock your mem sticks, if you over do them and/or don't cool them enough you COULD fry them resulting in permanent artifacts. We've seen guys reporting damaged 6950's from running 6970 bioses here havent we? It all depends on how lucky you are. Some overclock better than others even if they use the same chips. As always, its do at your own risk

 

[DJManiac]

Remember all cards are not the same. While most 6950 cards use T2C mem chips which are rated at 1250Mhz, there are a few 6950 cards that use the R0C, the chips used on the 6970. Those really lucky folks should have no problems running 1375, while 6950s with the T2C chips are always at a risk. Some T2Cs might not fail at 1375 but some will, especially those with insufficient cooling. I'd stick to 6950 modded bios and overclock only the core, 1250 is good enough and far less risk.

Thanks for this usefull info! As I will strip of my stock cooler today (to mount Accelero XTREME) I will take a closer look at the RAM chips to find out which one my XFX 6950 has...

Up to now 1500 on MEM is no problem here...

Will report!

 

[dulemk]

Voltage problem

For me both vid3 and vid4 are not working.
I tried with:
just moded bios;
moded + Vid3;
moded + Vid4;

noting works, always is the same.

I notice that while analysing my original bios with RBE that maybe clock info are somewhat connected to the VIDs.
As you can see at the image we know that vid2 and clock info 1 are connected so maybe all others are connected to.

What do you think, it is safe to try changing the VID1 or not??

And one more thing, do I have to reinstall the driver if I flash the bios??

And this
Do I have to insert the voltage in Voltage(V) in RBE field so the changes take effect, because they are now "---"

 

[itsdanny]

No. It's not safe, do not change VID1 or VID2.

 

[dulemk]

So what to do, apparently vid3 and vid4 are not working for me.
Is it safe to try increase them both at the same time??

Once again
Do I have to insert the voltage in Voltage(V) in RBE field so the changes take effect, because they are now "---"