RBE v1.27 released!

[merlino]

I've had the windows logo problem too but that was before we had RBE and happened when I switched from an Asus ROM to the default
The PC would boot, but the image on the monitor would stick on the windows 7 loading logo. I could hear windows load in the background.
If you remove the display driver before flashing, windows should load normally and allow you to reinstall the driver

...but after the driver installation and reboot, same sh.. again.
i guess something is wrong with the drivers.
hopefully the next driver release will solve different kind of problems

 

[Boomstick777]

What's limiting you? increasing vgpu doesn't help? How much vgpu for 950 mhz?

Card is unstable for me with anything over 950mhz on core regardless of voltage, the memory goes from 1375 stock to 1525 with the same stock volts.

To be honest 950/1525 is a decent overclock and im benchmarking at GTX 580 levels, think my CPU is holding me back getting a higher score.

running card at 950/1450 24/7 clock at 1.225volts

Achieved by flashing with RBE to get 1.225 voltage, then max out ccc and allow it to start with windows so have constane 950/1450.

Hopefully new bios's or updated RBE could allow clock speed bios flashing in the future?

Does anybody have the HD 6970 LCS Bios? That Bios runs at 925/1425 stock and migt have higher ccc limit than non oc cards....

 

[merlino]

ok, it works - after lots of tests, rbe gives me a working bios.

in this test i changed only the id to 6970, nothing else.
but this is not working, for instance 3dmark 06 signs my card still as a 6950.

has anybody success with "id changing" so far?

 

[Boomstick777]

ok, it works - after lots of tests, rbe gives me a working bios.

in this test i changed only the id to 6970, nothing else.
but this is not working, for instance 3dmark 06 signs my card still as a 6950.

has anybody success with "id changing" so far?

Changed the Asus bios to XFX Version to match my card? That worked no problem.

Why are you trying to change the HD 6950 ID? I would have just bought a HD 6970 to be sure I get higher speeds, I know HD 6950 can be flashed to HD 6970 bios, but keep hearing that people are getting memory errors, and card hits power limits much earlier than HD 6970. When I bought my HD 6970 it was only around £40 more than HD 6950, worth the extra in my opinion to assure high clocks. HD 6970 is cheap as chips for its performance...

 

[Scyphe]

ok, it works - after lots of tests, rbe gives me a working bios.

in this test i changed only the id to 6970, nothing else.
but this is not working, for instance 3dmark 06 signs my card still as a 6950.

has anybody success with "id changing" so far?

Wait, you can't use RBE to unlock your 6950 to 6970.

The only thing you can do with your 6950/6970 as of now is to change VID4 from 1175mV. What you did was change the Device label which doesn't do anything.

 

[Matess]

Hi, I used RBE for raise voltage and it works!

but... what bios are you using?

if i use asus bios, then it is possible to run SD and check "overclocking range enchantment", but it has no use, because GPU is underclocked to something around 450MHz in furmark.

when i use sapphire 6970 bios and change only voltage to 1,25V, then i can overclock my GPU to 950MHz without underclocking in furmark, but i cannot raise GPU frequency over 950MHz. Changing upper limit for GPU isnt working in RBE for me.

 

[merlino]

Wait, you can't use RBE to unlock your 6950 to 6970.

The only thing you can do with your 6950/6970 as of now is to change VID4 from 1175mV. What you did was change the Device label which doesn't do anything.

my card is already unlocked to 1536 shaders. i´ve already made the bios mod!

next try was to get a id 6970 instead of 6950.

but like i said, its still not possible.

 

[Murjuk]

OK?! Will try again tomorrow - to late here again Thx for your Info...

EDIT

ok... tried XFX6970 Bios and ASUS (from this thread Bios) in order to change 2D VGPU but evertime the same : Blackscreen after Winlogo.

@Murjuk: How Did you Do this 2D VGPU change and which BIOS do you use? And which Driver (ASUS or normal Catalyst?)?

HIS 6850 original BIOS. Driver is 10.12a.

 

[jimmyz]

OK a few things need to be said again:

You can only change Voltage on 69xx cards with RBE 1.27 Not clocks!
Changing the device ID is not going to give you more performance, you still own a 6950, 1536 shaders yes.
tricking the driver into giving more performance...NO
Yes you do need to shut down , not just a reboot.
The Powertune slider still plays a part when adding volts. You still need to push the slider to +20 to keep throttling away.

 

[Stryder]

OK a few things need to be said again:

You can only change Voltage on 69xx cards with RBE 1.27 Not clocks!

Does this apply to 68xx cards as well or just to 6950/6970s?

 

[jimmyz]

Does this apply to 68xx cards as well or just to 6950/6970s?

I do not own a 68xx card , but a PM to Baggzlash should give you an answer.

 

[BAGZZlash]

Does this apply to 68xx cards as well or just to 6950/6970s?

Yes, it does.

 

[r3lu84]

Unfortunately i found that upping the voltage has little effect on increasing the GPU frequency, since for 950MHz, which is another 20MHz beyond what i could do before, i need no less than 1,25V to attain stable operation. At this level the cooling fan is beginning to sound like a vacuum cleaner (not that with stock voltage was much quieter to begin with).

I have found however that my Sapphire Radeon HD 6970 does very well if i mod the bios with the 6950 voltage table. The card still runs perfectly at 880MHz/1500Mhz (930Mhz/1500MHz with stock 1,175V). Even if i lose all overclocking headroom, the video card becomes almost whisper silent, even in really heavy games like Metro 2033. The GPU temperature drops to just 85°C, from ~91°C with default voltage, not much improvement but enough to ensure a very quiet operation.

At the very least reducing the GPU voltage allows for a truly great power/performance ratio, while reducing noise considerably. Also this might be a great mod for those who intend to use the 6970 in crossfire, even if it comes at the expense of losing the already marginal overclocking headroom.

This time AMD wanted so much to beat the GTX 570 that they simply pushed the 6970 too far, going beyond the possibilities of the otherwise pretty good vapor chamber cooler. The 6970 is simply too hot and power hungry, and PowerTune cannot save it from that fact. AMD already overclocked the Radeon 6970 from factory; there is little point in going any further, unless you have one of those full cover waterblocks mounted.

Anyway, many thanks to the developer BAGZZlash for this very useful tool.

 

[DJManiac]

You can only change Voltage on 69xx cards with RBE 1.27 Not clocks!

Regarding 6950@6970:

Shoud we mention here also which of the 4 VIDS are possible to change if you want to make a 6950@6970?

Murjuk said hes was able to change an HIS 6850 original BIOS (and flashed it??)

My experience is that with a 6970 BIOS and flashing to 6950 with modded 2D GPU ist not possible. Only 3D VID works for me....

Tried it very often now but evertime the same end:
The almost famous "Blackscreen after Winlogo and Logonsound" error occurred....
Keep in mind that without Driver Win starts normally - Whatever I changed in RBE.....
Hell - what did ATI/AMD to us with this driverlimitations?

 

[Murjuk]

Regarding 6950@6970:

Murjuk said hes was able to change an HIS 6850 original BIOS (and flashed it??)

I have changed only 2D and 3D voltages, not the clocks.

 

[jimmyz]

Actually the 2d volts can be altered as well. I know this because my cards are hard modded for volts and I have a pair of multimeters hooked up to them.

This needs to be said again: Shut off your computers power supply for a min to allow the board to drain. I know the motherboard I am using (ASUS Rampage III Extreme) keeps power to alot of components as long as the power is on. I saw my Vendor change etc and had assumed the flash was complete. It took fully powering down to completely load the proper bios.

TL;DR : Turn off PSU and allow at least 1 min to pass before turning on PC and rebooting.

 

[merlino]

well, i have a strange problem with my 6950@6970
as soon as i changed just the 3dvolts from 1.1 to 1,175 in rbe voltage registersettings
with a functionally bios mod, 2d rendering errors appears all over the screen.

backwards to 1.1 everything is ok.

how can that happen?

 

[DJManiac]

I have changed only 2D and 3D voltages, not the clocks.

If you read me complete post you can see that I spoke only about the volts. So thank you for this additional info, anyway...

 

[Boomstick777]

Wasn't totally stable at 950/1450 with 1.25 volts, upped to 1.275volts, seems rock solid now.

Heaven benchmark results with,

HD 6970 950/1450 1.275Volts
PII 1055t 3.6GHZ 1.35volts

 

[PopcornMachine]

Wasn't totally stable at 950/1450 with 1.25 volts, upped to 1.275volts, seems rock solid now.

Good to know. What does it do to your temps and fan speed?

 

[Mirmendis]

Voltage 0 and 3 are set with "---", should we change it ?

 

[DJManiac]

You have to open GPU registers Button and change volts there...

VID4 is for 3D and the most point of interest

 

[Mirmendis]

Thanks but i've 1065 on VID4 and 1100 on VID3 with my 6950 unlocked shaders bios (i want to keep RAM timing/voltage)... Which One is For 3D ?

 

[DJManiac]

So are you able to read? Please read (really read) my post 72 of me... VID4 is 3D!

 

[DJManiac]

Have another quite strage behaviour...

If I play eg. mkv files my card goes in UVD Mode with 500/1375 -> OK
But when I stopped the playback the card did not return to 2D clocks...

Anybody has the same? Driver problems again?