Tutorial: How to softmod to ANY VGPU you want without hardmods! (1.3~1.6v or more)

[mattkosem]

Matt - mod for slightly higher voltage, you can set it to whatever you want.

Above 1.45? I wonder if ATI publishes any recommended limits for voltage. I've not seen any reports of people pushing further than that.

--Matt

[S_G]

Wow, going to give this a shot on my 8800 later, as well as my 4850. Thanks!

[Unrealer]

Anybody tried on a 4870?

[mattkosem]

Anybody tried on a 4870?

I can confirm this works with reference 3-phase HD4870s; both overvolting and undervolting. Good stuff!

--Matt

[dinos22]

i have no idea what you guys are doing here but i love the end result = more volts without hard mods = sweet hehe

now who's going to be nice enough to tell a total n00b at programming, scripting, computer language and whatever else you ppl are experts in how to do a step by step volt increase on 4870X2 single and Xfire

love the hard core volt test on OBR's card there.. ... 1.6v >> over 80A ROFL crazy stuff >> obviously no one should really try that at home unless you've got LN2 on cards hehehehe

good work

[Oc-Ghost]

working here on reference sapphire 4870 board

[jaredpace]

cool that means it should work fine on your x2, dinos.
Just go start - run and type cmd. hit enter.
find directory of your rivatuner (just throw it on c: and name folder riva)
type cd c:\
type cd riva (or whatever the rivatuner folder name is)
begin to type the commands from the first post.

[dinos22]

cool that means it should work fine on your x2, dinos.
Just go start - run and type cmd. hit enter.
find directory of your rivatuner (just throw it on c: and name folder riva)
type cd c:\
type cd riva (or whatever the rivatuner folder name is)
begin to type the commands from the first post.

cheers
yup i am familiar with CMD
i will have a play i'm sure its easy to figure out

how does Jody create desktop shortcuts with different voltage settings...very much interested to know what

would be it still out of the question to try and have both hard and soft mods and then just use the hard mod to fine tune volts? would be move OVP limit down somehow if i use hardmod for just minor adjustments?

why is OVP gettin bypassed can someone tell me and OCP still stays as it is?

[drizzt5]

So why does it return as all invalid for most 4850's? :/

[HDCHOPPER]

eyem with dinos lol
been in the cmd window , and regedit for 2 daze now alinging & tweeking my ssd ( thanks Tony ) but this is squishing my noodle

maybe in a day or so need rest

[3oh6]

how does Jody create desktop shortcuts with different voltage settings...very much interested to know what

give me a couple days Dino and check the thread over at OCX. i have done up a very straight forward step-by-step there. i did for single card with a GTX 280 and multi-GPU with a pair of GTX 260s. the HD48070X2 should be the same as the multi-GPU guide.

i will add the method for creating shortcuts and scheduled events in a couple days - busy as all hell right now - but it really is simple. you just add the flags to RivaTuner launcher items for the various voltages. exactly the same commands you would type in the command prompt. i might do a screencast for that as it would be easier.

[fornowagain]

how does Jody create desktop shortcuts with different voltage settings...very much interested to know what

This is what Im using for my x2. Obviously use your own values, path etc. Paste contents into notepad and save as vgpu.bat

ECHO off
REM Voltage control for X2 users batch file.
SET RIVAPATH= "C:\Program Files (x86)\RivaTuner v2.22\RivaTuner.exe"
cls
ECHO Graphics Vgpu selection menu.
ECHO ===================
ECHO Press 1 for Default
ECHO Press 2 for 1.30v
ECHO Press 3 for 1.35v
ECHO Press 4 for 1.40v
ECHO ===================
CHOICE /C:1234 /T 10 /D 1 /M "Which voltage?"
IF ERRORLEVEL == 4 GOTO 1.40v
IF ERRORLEVEL == 3 GOTO 1.35v
IF ERRORLEVEL == 2 GOTO 1.30v
IF ERRORLEVEL == 1 GOTO Default
:Default
ECHO ===================
ECHO Default
CALL %RIVAPATH% /sd0 /wi1,70,18,41 /sd2 /wi1,70,18,41
GOTO END
:1.30v
ECHO ===================
ECHO 1.30v
CALL %RIVAPATH% /sd0 /wi1,70,18,44 /sd2 /wi1,70,18,44
GOTO END
:1.35v
ECHO ===================
ECHO 1.35v
CALL %RIVAPATH% /sd0 /wi1,70,18,48 /sd2 /wi1,70,18,48
GOTO END
:1.40v
ECHO ===================
ECHO 1.40v
CALL %RIVAPATH% /sd0 /wi1,70,18,4C /sd2 /wi1,70,18,4C
GOTO END
:END
exit

[Unrealer]

UPDATE: here is the correct formula:

(VID * 0.0125) + 0.45

B. Calulate actual voltage by the formula: voltage = (VID * 0.0125) - 0.45

so, you could delete the second one, is useless

[HDCHOPPER]

sweet fornowagain ! thats allmost a batch gonna put that on notepad & see what eye can do with it later THANKS!

[mattkosem]

sweet fornowagain ! thats allmost a batch gonna put that on notepad & see what eye can do with it later THANKS!

Almost? Looks like a batch file to me...

--Matt

[HDCHOPPER]

ya your right short of being zipped and painless

have been in the ole cmd promp and the guts of this puter for a week stright and still of yet to do the gfx card

need my oc vitamins and play some games !

[fornowagain]

Yeah sorry thought it was obvious, just a simple batch file. Paste it into notepad and save it as ohmygodcantbelieveitworks.bat

[HDCHOPPER]

[dinos22]

Yeah sorry thought it was obvious, just a simple batch file. Paste it into notepad and save it as ohmygodcantbelieveitworks.bat

ah ok

[japamd]

Just sucessfully ran 3DMark Vantage with 860/950 1.4v stock cooling! Before the soft voltmod I was unable to go beyond 825 on GPU.

http://img403.imageshack.us/img403/6...7221147ww9.jpg

Sweet!!!

Thanks for the bat script, fornowagain !

[dinos22]

when you execute this .bat file are you saying that you will get a choice of voltage with selection criteria or do you have to edit the file to get the required voltage set automatically?

[NBF]

when you execute this .bat file are you saying that you will get a choice of voltage with selection criteria or do you have to edit the file to get the required voltage set automatically?

Yes, you can choose Voltage. If you need more voltage than 1.4V you have to edit.

Also, the paths are for Vista 64 and RT 2.22 default install location. For other OS or RT location you need to edit too.

[mattkosem]

Just sucessfully ran 3DMark Vantage with 860/950 1.4v stock cooling! Before the soft voltmod I was unable to go beyond 825 on GPU.

http://img403.imageshack.us/img403/6...7221147ww9.jpg

Sweet!!!

Thanks for the bat script, fornowagain !

Any luck in 3dmark06 at those clocks?

--Matt

[fornowagain]

when you execute this .bat file are you saying that you will get a choice of voltage with selection criteria or do you have to edit the file to get the required voltage set automatically?

If you have a reference 4870X2 it should work correctly, just select the voltage you want. Assuming the install path is the same, same OS etc. I'd always recommend working through the calcs to make sure you understand the values and that they're correct. If its a different card just modify it to suit.

[dinos22]

Any luck in 3dmark06 at those clocks?

--Matt

'06 seem tough on these cards
i could run slightly higher clocks on all benchmarks compared to '06 heh

if you are stuggling to see the same clocks on it as others dont be surprised