Seen this? : New way to softmod VGPU

fornowagain · 28 Jan 2009 at 16:07

[QUOTE='[timko]Add this to the top of the batch file...[/QUOTE]
Thanks

updated OP.

Btw, it couldn't find the "RIVAPATH " handle because of the space.

fornowagain · 28 Jan 2009 at 17:11

Bradley8988 said:
snip

Your registers converted

Register 15 - 38 = 56 = 1.1500v
Register 16 - 36 = 54 = 1.1250v
Register 17 - 35 = 53 = 1.1125v
Register 18 - 31 = 49 = 1.0625v

=================

Go to the OP, I have put a batch for the 260 & 280. Same warning. Check the values and path, you do so at your own risk.

gurusan · 28 Jan 2009 at 17:15

Does increasing vcore allow you to raise the shader clock? I've gone up to 1.2375V and not been able to get 1566mhz stable

It's rock solid at 1512mhz at stock 1.1875V though

fornowagain · 28 Jan 2009 at 17:22

The core and shader are under the same voltage. You may just be at the limit of the shaders.

tmaxxthomson · 28 Jan 2009 at 18:59

so. what kind ov overclocks has anyone got out of there x2? im at 1000 on the memory and the core is at 852 @ 1.40v, now trying 862 and 1.45v

Bradley8988 · 28 Jan 2009 at 19:08

Ummm thx for taking the time to do that but when i run it the box opens correctly but when you then press a number for the voltage you want it just closes and no voltage is changed. This is the same if i run as admin aswell.

fornowagain · 28 Jan 2009 at 19:54

Bradley8988 said:
Ummm thx for taking the time to do that but when i run it the box opens correctly but when you then press a number for the voltage you want it just closes and no voltage is changed. This is the same if i run as admin aswell.

I'll have a look

Bradley8988 · 28 Jan 2009 at 19:56

Cheers duder.

fornowagain · 28 Jan 2009 at 20:34

Bradley8988 said:
Cheers duder.

Working?

gareth170 · 28 Jan 2009 at 20:40

does this work with the 4850? also if u up the volts this way does it have the same limits as doing it via bios?

Bradley8988 · 28 Jan 2009 at 21:16

fornowagain said:
Working?

Btw, could you delete your quote above, I want to keep the batch on the OP for clarity.

280 batch added to the OP.

Yea works a treat duder. Thanks very much.

fornowagain · 29 Jan 2009 at 02:38

Dug out the DMM, looks like my 4870X2 is OVP limited to 1.37v

jvowles · 29 Jan 2009 at 12:05

Its odd. I am panic'y about doing this with the graphics card, but with the same priced bit of CPU, i have no issue at all!

FrenchTart · 29 Jan 2009 at 12:07

jvowles said:
Its odd. I am panic'y about doing this with the graphics card, but with the same priced bit of CPU, i have no issue at all!

Lol, I'm the same really. I've just bought a new cooler from here to try and make sure I don't have any overheating problems...

PaulyD · 29 Jan 2009 at 12:10

Im currently running 850/1000 @ 1.3v on my 4870x2, completed vantage at 875/1050 @ 1.4v which gave a huge increase in scores (well huge for vantage anyway!) It crashed at 900 on core tho :/

Forgot to take screeny of it so will have to run it again as well, scored 17838 on last run

Aurhinius · 29 Jan 2009 at 19:31

works great on my BFG 280 GTX - not really tested any higher speeds but certainly increases voltage to the correct levels

fornowagain · 29 Jan 2009 at 21:33

You're not going to do any damage tbh. Most of these cards have over voltage protection circuits, from my testing this method does not override that function. Take the trace below from my 4870X2. Increasing the voltage with a game running minimised. As it reaches 1.35v you can see that the load current doesn't get any higher. I checked with a multimeter and it limits around 1.35-1.37v. No matter what voltage I select the actual core voltage just can't go any higher. I don't have a 260/280 to hand, but the OVP will be around 1.30v.

Trunks9486 · 2 Feb 2009 at 20:08

Does this work with the Sapphire 4870 which is on offer here?

What is the default voltage on 4870 anyway?

fornowagain · 2 Feb 2009 at 22:34

Should do.

gurusan · 2 Feb 2009 at 22:46

fornowagain said:
Should do.

They are non reference cards that use an analogue vrm circuit, so nope :/ otherwise I would have snatched one up