RBE, 69xx, video clocks, and how they all fit

[campb292]

I have a 6950 with its shaders unlocked to 6970. In my tinkering I have noticed that the 6970 clocks, specifically memory, are too high for my particular card. The 6950 stocks at 800core/1250mem while the 6970 stocks 880core/1375mem. The memory used in the 6970 is rated at 1500, while the memory in the 6950 is rated right on spec at 1250. Mine seems to be stable at 1330 and I have been running at 1300.

Here is where RBE comes into play: While I can adjust the 3D clocks with Afterburner, I cannot modify what the card jumps to when playing video - 500core/1375memory. Is it safe to use RBE to modify only the clocks? I was thinking of staying with the pattern and just modding those 500/1375 clocks to 500/1300.

 

[Amorpheus]

Once the 69xx's are supported it should be. Looking forward to doing some of that myself.

Right now you could also set fixed low clocks for 2D with Afterburner, that disables PowerPlay but you'll have to compromise for the moment.

 

[Bo$$]

dont risk it and try it, it probabily will brick your card, as Amorpheus said, use afterburner or TRIXX to lower to clocks

 

[jimmyz]

Wait a couple of days tops and RBE Will be ready, Right now the application does not support the 69xx series, but he has been working many hours a day getting the bugs worked out so the community can enjoy it.

 

[Mistral]

The first thing I'll do when a RBE supporting the 6970s arrives, will be to make myself a bios with lower voltages. From my observation the card simply does not need so much juice.

---------------------
OP, on your question:
- open CCC, save a profile whilst making sure Override is checked
- find where whatever-you-named-it.xml is in your system
- open it with a text editor and have a look at the "MemoryClockTarget" part, "Want_1"

That's the setting you're asking for.

 

[BAGZZlash]

Wait a couple of days tops and RBE Will be ready, Right now the application does not support the 69xx series, but he has been working many hours a day getting the bugs worked out so the community can enjoy it.

I'm sorry I have to contradict: RBE v1.27 will (hopefully) support voltage control for 69x0 cards (among other things), but clock setting is still an issue because ATI introduced a new nagging BIOS clocking protection into their drivers.

 

[Matess]

PM me if you want volunteer for tests
I have Sapphire HD6950.

 

[campb292]

Same here, always happy to test.

 

[arroyo]

BAGZZlash, 2 weeks from now I will be happy owner of HD6950.

That would be great honor to test new version of RBE on my new shiny HD6950 ... and kick that cards ass. I just love to test Frankenbioses

 

[tecnoworld]

I have a 6950 with unlocked shaders. It runs fine at 865/1325, but I'd like to increase GPU voltage to 1.175v in order to pass the 900Mhz mark. Will the newer RBE support this mod?

p.s.: it would be really cool if RBE could fool Asus tool, so that it thinks that you have an Asus card installed, and so you could use the windows program to change voltage in real time.

 

[BababooeyHTJ]

I'm sorry I have to contradict: RBE v1.27 will (hopefully) support voltage control for 69x0 cards (among other things), but clock setting is still an issue because ATI introduced a new nagging BIOS clocking protection into their drivers.

Crap, so I take it that the same goes for fan speeds?

 

[erocker]

You can always go the driver route and edit a profile for the video clocks you want. Hopefully it works the same as the 5 series. Here's the guide: HD 5XXX, 2D Clocks & Video

 

[vvulture]

I would really love to be able to change the device id.
AMD may use the device id in an effort to manipulate which drivers are used with a particular card, which may see us "unlockers" stuck with 6950 drivers as opposed to 6970 drivers for example.

 

[BAGZZlash]

BAGZZlash, 2 weeks from now I will be happy owner of HD6950.

Sorry dude, tests are being run at the moment. The other way around, that means that maybe there's a functional RBE release available you can use as soon as you get your card! Nice to be seeing you again, by the way.

I just love to test Frankenbioses

Frankenstein testing would be highly appreciated, since you are the expert here.

I have a 6950 with unlocked shaders. It runs fine at 865/1325, but I'd like to increase GPU voltage to 1.175v in order to pass the 900Mhz mark. Will the newer RBE support this mod?

If tests are being successful, yes!

p.s.: it would be really cool if RBE could fool Asus tool, so that it thinks that you have an Asus card installed, and so you could use the windows program to change voltage in real time.

If changing VendorID is good enough for Asus (and it should be), then this will be supported, yes.

Crap, so I take it that the same goes for fan speeds?

Unfortunately, yes. ATI decided to incapacitate the BIOS settings and put this into the driver's hands. Don't understand, why.

I would really love to be able to change the device id.
AMD may use the device id in an effort to manipulate which drivers are used with a particular card, which may see us "unlockers" stuck with 6950 drivers as opposed to 6970 drivers for example.

Should be possible with release v1.27.

 

[vvulture]

Should be possible with release v1.27.

That would be awesome !!!!

 

[jimmyz]

yes, yes and yes, the Fan question is the only no. You guys should like 1.27 I used the asus bios and can confirm with Smart doctor it does allow adding volts in windows, it cannot however lower them beyond the level you set in the BIOS. Also the second card in crossfore gets really flakey with Smart doctor, It constantly loses the Powertune setting and drops volts. The fan speeds set also get unreliable.

My solution was to use Smart doctor to allow higher CCC limits and do my clocking fan and power tune in CCC Overdrive.

 

[danc]

Can 1.27 increase CCC clocks limit for a 6950 flashed to 6970 (840/1250 to 950/1400)? Or decrease the ram voltages of a 6970 "flashed" to stock 6950 (1.6v to 1.5v)? Can i dream bro?

 

[jimmyz]

Can 1.27 increase CCC clocks limit for a 6950 flashed to 6970 (840/1250 to 950/1400)? Or decrease the ram voltages of a 6970 "flashed" to stock 6950 (1.6v to 1.5v)? Can i dream bro?

Yes and no. Use the ASUS bios posted in the VGA BIOS DATABASE and pop it into RBE 1.27 when released, set the voltage in the register on the far right for 3-d clocks and save file. Then use Smart doctor 5.74 available on asus's website, in settings check allow overclocking range enhancement. This will allow 2x the default clocks your card came with, in other words like 10Ghz memory and 1.780Ghz core.

 

[Murjuk]

Or decrease the ram voltages of a 6970 "flashed" to stock 6950 (1.6v to 1.5v)? Can i dream bro?

I want this too.

 

[danc]

Can i do it without another external program like SD, Trixx or AB? I just want CCC working in the background and thats it. AFAIK using an external program will kill AMD powerplay feature....

 

[jimmyz]

you see my screen don't you, my cards clock down like normal.once you use SD to enable the extra room it stays that way.

As to the dropping memory volts, The Memory voltage is hard wired in, not adjusted by software so far as I can tell. I do not have access to the Datasheets....(hint)... There are hard mods you could do to lower the Ram volts but I really don't see the need in it. the memory doesn't have an issue with 1.6v just faster speed, drop the speed you stop the problems.

 

[danc]

So to say the most elegant way of getting a flashed 6950 work as a 6970 is simply using a 6970 bios?

There is no hope of making a full 24 SIMDs 6950 works at 6970 clocks at 6950 voltages....without using SD? Well guess i cannot win them all, yes I hate the idea that CCC and SD are both communicating with the gpu at the same time.

 

[BAGZZlash]

So to say the most elegant way of getting a flashed 6950 work as a 6970 is simply using a 6970 bios? There is no hope of making a full 24 SIMDs 6950 works at 6970 clocks at 6950 voltages....without using SD?

There is: Just use a RBE v1.27 to modify a 6970 BIOS. RBE v1.27 lets you edit the voltages freely.

 

[merlino]

that sounds great

but when is the rbe v.1.27 available?

 

[BAGZZlash]

but when is the rbe v.1.27 available?

I compiled the release candidate today, but since W1zzard is in Vegas visiting CES... He'll return by Tuesday and I hope he'll up the program right away. So after all, let's hope: Tuesday!