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

[ceemic]

Has any HD4890 users measured REAL Vgpu with DMM?
I used GPUTool to change Vgpu and max I could measure was ~1,465/1,490V (2D/3D). I have Sapphire's card and it clocks pretty well with def cooler: http://ceemic.pri.ee/3d1/hd4890_79646.JPG

[benko]

high clocks

give us 3d06 and vantage score

[fng77]

I´ve tried it out this evening. The results I got was pretty confusing for a start. Just to check things out a bit, I started raising the v-gpu while scanning for artifacts with Ati tool. I´ve read about you guys cards and was expecting a OC around 850 max.

I myself got a XFX 4870 XXX, 775 core 950 mem.


Things went along much better than expected:

Stock 811 Mhz

1,3 v 828 Mhz (with no Artifacts)

1,35 852 Mhz

1,40 869

1,45 886

1,47 900 Mhz (I know, this is a bit much for a 55nm. But hey, 900 Mhz is a must once you starting to get so close)


Happy and amazed with my results, I went on with 3Dmark 06:


1,47 900 Mzh = Total system Crash (expected )

1,45 886 = Total system Crash (expected )

1,40 869 = Total system Crash (NOT expected )

1,35 852 = Worked Hurray! Gave me 14156 3dmarks, not so good. With the same cpu I got over 13000 points with my single 3850, clocked at 1002-1063 1.59V

I tried 1,40 v with 859 Mhz = Total Crash. Damn, I started to suspect that ovp could be the problem so I decided to stay under 1,36 v, and started to push the system from there. I Have now passed the 859 that crashed with 1,4v and are at this minute benching at 1,36v 862 Mhz and climbing (hopefully)

What do you guys think. Is it OVP that kills the system at anything over 1,37? Is it really set that low on these cards? Could it be something else?

Btw, I´m at 862 Mhz now, 3dmark-stable. 14254 (benching on my other computer). works like charm, as long as I dont go over? Yes, you guessed right 1,36 v

I´ll be back with more info, gonna start with the memory next, when I find my max core mhz.


Yours // Fng77

[fng77]

My god, I`m gonna get a serious hearing-problem after this..The stockfan on the 4870 is extremly loud at 100% speed

Okay, some updates on my OC-evening. I Have established my memorys max oc to: 988 Mhz. Everything above that, and 3dmark Crashes. My rig has a:

e2160, clocked at 3510 Mhz and the ram is at 1040 mhz 5-5-5-15. And the GPU at:

Core GDDR Gives 3DMarks

856 Mhz - 950 (stock) 14254

856 - 979 14288

856 - 983 14356

856 - 988 Crash


I Think the core oc is Ok, but I was expecting a little more from the memory. I cant let go of my old 3850, that clocked right up to 1 Ghz!! with around 1,55 v-core (with water), and scored not so much less than this card in 3dmark. I must say that I am very dissapointed with the 4800 series 3dmark 06 performance. Vantage is another story, I know, but anyway: A volt-modded and maxed out top-of-the-line GPU that scores 14365 points?? not so impressive.

The next step now is to get my system up and running at its peak, at 3,6 ghz cpu, tighten the timings a bit on the ram, and close all unessesery apps for a good last run in 3DMark06 and Vantage, before nap-time. Its in the middle of the night here in Sweden right now, just me awake, sitting here Oc:ing, all alone, In the dark. My only friend is a piece of crap-clocking 4870 and a 100 Db fan....

[fng77]

He, he my poor old 2160 needs 1,55v to get "bencheble" on this board. Just needed 1,5v on my Maximus Extreme. The board I´m using now is a m-atx MB, that has a terrible v-droop, Thats why I need to set the v-core that high. 1,55 v becomes 1,5v in windows. And when you push it, the v-core droops down to 1,46 v and thats with a vdrop-mod . Anyway, this m-atx board is a very impressive in many other ways. Before the Maximus Gene, and the DFI p45 matx boards came out I considerd this to be the best matx for oc:ing on the market (along with the P5E-VM HDMI of course).

Ok, now I´m benching in the background, I see a very good sign already. The framerate in the begining of 3dmark06 went up to 106, before I tuned my pc up it didnt got over 100.

Oh, no...now it died on me..

Okay, lets give it another try..Some times I get so bored with this Booting, booting and booting. I upped the v-core to 1,575..Do you think my ninja mini can handle that? I´m not so sure myself, now i´m up and running again, please let my bench at least one time with my cpu at 3,6 ghz!!....Its running now again, The ship lands...the soliders are shooting at each other....a mad robot with a helicopter gun kills everyone...I like the fireflies better....ok....fireflys now..looks good...What the H*ll..

I´m gonna call it for today I think. Just one more try..Back at 3,5 ghz, booting.. Ok, my computer have gone completly mad, I feel a strong urge to smash it to pieces. I think I will call it for today, before I do something I will regret. Darn Fireflies.



Next Day:

Hello again. Today I have switched out my old cpu against a e5200. And I can say for sure that the e2160 at 3,51 was a real bottleneck on my system. Both are IHS-less so I can push em pretty hard on air alone. I direcly went in to the bios and set my E5200 to 4.0 Ghz, and wow, that alone gave me almost 3000 points extra in 06. Now its starting to look better! I have played around with the settings a bit, Its pretty strange but for a while yesterday I got My4870 stable at 856 Mhz. To day its only good for 849-852.

My Benching today:

E2160 849 - -983 3dmark06 - 14194 Maxed out cpu at 3,51 Ghz.

Switched to:

E5200 849 - - 983 16998 Points!! Cpu at 4,1 Ghz, Pci-e at 110 Mhz


Now I must of course get over 17000, which was not as easy as it sounds. Usally I dont push my 5200 over 4,0 Ghz since I must give it over 1,47 volt for that. Thats a little bit high for a 45nm, but today I Totally maxed it out (on Air) at 4,1 ghz, thats what gave me 16998 points. I have also pushed the Pci-e bus to 110 mhz. I tried some trix but I only got: 16986, 16974 and so on.

I decided to try and push the Pci-e bus some more to get those extra points. Since it is a PCI-e 1.0 on this board I figured I could win some performace here. I Also got my cpu up to 4,12 Ghz, he, he.

That actually did the trick:

Gpu: 849 - 983, Cpu: 4,12 Ghz, Pci-e: 115 Mhz = 17093 3Dmark06 and a respectable 9257 Performance at Vantage

Gpu: 849 - 983, Cpu: 4,12 Ghz, Pci-e: 120 Mhz = 17161 And 9308 vantage

Now I´m starting to like my pc again

Gpu: 849 - 983, Cpu: 4,12 Ghz, Pci-e: 130 Mhz = Boot failure + Lost my SATA harddrive in bios for a while, when I lowered it to 120 it came back, thank god.


One more try, now that I know that the rest of my system is at its peak Oc, I´m gonna give the gpu one more chance:

Gpu: 852 - 983, cpu:4,12, pci-e 120 = 17199 at 06 And 9272


I´m ok with these results and I´m sure this will give me quite a boost at Crysis and Warhead, but still, Why cant my 4870 handle more than 1,36 volts?

[Jejking]

gurusan,
It's quite safe to say they don't.
PALiT (aka. Xpertvision, Gainward) Sonic cards are all in-house custom boards.

I am trying to find out whether the PowerColor PCS+ HD 4870 1gb is compatible with this trick or not. Saw someone with a ''Powercolor 4870 Zerotherm'' not working so my hopes are getting battered here.

Anyone with a good overview which cards / brands are reference (= compatible) and which are not @ HD4870 1GB? Getting confused here.

Anybody has an idea about the range of this volttrick downwards? Hope I can go below 1v with it, would help power consumption a bit including downclocking the GDDR5.

[arroyo]

Gpu: 849 - 983, Cpu: 4,12 Ghz, Pci-e: 130 Mhz = Boot failure + Lost my SATA harddrive in bios for a while, when I lowered it to 120 it came back, thank god.
...
One more try, now that I know that the rest of my system is at its peak Oc, ...

Dude, that's EPIC ! It remainds me a sentence:

"Madness? ... THIS IS SPARTA !"

[nafets]

I am trying to find out whether the PowerColor PCS+ HD 4870 1gb is compatible with this trick or not. Saw someone with a ''Powercolor 4870 Zerotherm'' not working so my hopes are getting battered here.

Anyone with a good overview which cards / brands are reference (= compatible) and which are not @ HD4870 1GB? Getting confused here.

Anybody has an idea about the range of this volttrick downwards? Hope I can go below 1v with it, would help power consumption a bit including downclocking the GDDR5.

The PCS+ HD4870 1GB looks like a reference design board, and should be good to go with software voltage management. Give it a shot. If it doesn't work, there's no harm done.

You pretty much just need to get a look a the board design (and specifically if you can see the Volterra VT1165 VRM controller), to figure what does and doesn't work with software voltage control.

You can undervolt as low as your card is stable. I've gone down to ~0.9v with both my HD4870 and HD4890 cards, but you only save around 1W-2W from the usual low of ~1.08V (on an HD4870). The software voltage controls allows you to avoid messing with the BIOS, and is usually more for overvolting. But the functionality is there too for good undervolting too.

[mib]

Any solution to run this on Asus (referent) 4850 or the only solution is pencil vmod??

[largon]

I am trying to find out whether the PowerColor PCS+ HD 4870 1gb is compatible with this trick or not. Saw someone with a ''Powercolor 4870 Zerotherm'' not working so my hopes are getting battered here.

There are two kinds of Powercolor HD4870 PCS+ cards; one with original AMD reference design with 4 Volterra phases and one with 4 conventional phases. Only the Volterra version works with this software voltage mod. The card you linked in your PM is the Volterra version.

Softmodable Volterra VRM PCS+:

Softmod non-compliant conventional VRM PCS+:

[Associated]

Hello!

I have one question. I have Gigabyte 8800GT and it has voltage controler on it http://hothardware.com/image_popup.a...cleid=1107&t=a is it possible to make any software for it? Gigabyts controler suck and max is 1.2V from 1.15V so if anybody has any ideas if that is max that controler can do or anybody can make better software i would be very happy.
Here is the original software: http://www.gigabyte.com.tw/Support/V...ity&FileID=121

[[XC] Oj101]

I just searched this thread and came up blank, anything for the 4670?

[overclocking101]

so when it says install/extract to the riva tuner directory, what is it talking about? just the rivatunter folder in program files or a sub folder within that folder? im lost

[|Oc|REvO_HsArC]

how about undervolting results? to keep stock clocks cool.

how low can a 4870 get? I'm testing 1.175v with ati tool right now. 1.1v hangs

[overclocking101]

well I have one 4870 with the standard volterra regulators but my other is the PC PCS with the older regulatrs so no soft voltmods, but I need to no where to extract and install the files, the rivatuner directory is to vague, there are 5 or 6 sub folders and extracting to the main folder does nothing

[|Oc|REvO_HsArC]

Just tried overclocking my 4870x2 for the first time (well, beyond the 800mhz ccc limit)

with stock voltage = 830mhz
with 1.3v = 850mhz and probably more
Edited the bios (both of them) with RBE and changed the registers. Now the 3d default clocks are 850mhz with 1.31v (just to make sure)

From what I read in this thread, ppl are having difficulties passing 830mhz so I am happy with mine lol

[N3RO]

Hey guys,

I've used eVGA Voltage Tuner before, however isn't working for me now.

I'm using GTX 295 with Windows XP SP3 + FW 182.50.

The problem is, everytime I push the bar to any value (eg. 1200mV) and press "Apply", it just goes back to the default value.

Someone knows why?

eVGA Voltage Tuner + Patch

Thanks

[Riska]

Is there not some one there can hack the asus smartdoctor for the HD4770 card to put the support in this tool so you can apply voltage tol all 4 cards instead of only the first card?

[N3RO]

Hey guys,

I've used eVGA Voltage Tuner before, however isn't working for me now.

I'm using GTX 295 with Windows XP SP3 + FW 182.50.

The problem is, everytime I push the bar to any value (eg. 1200mV) and press "Apply", it just goes back to the default value.

Someone knows why?

eVGA Voltage Tuner + Patch

Thanks

Tested now, with 181.22 there is no problem setting any voltage.

Someone knows how to use eVGA GVT + 182.50?

Thanks

[overclocking101]

ok so still no one knows where to extract the files and make voltage factory work??

[r4st4m4n]

ok so still no one knows where to extract the files and make voltage factory work??

I am using VoltageTuner: http://www.xtremesystems.org/forums/...d.php?t=227628

You just have to extract the files anywhere and copy/paste the rivatuner path in RivaPath.txt (don't forget to put the trailing "\" at the end).

Exemple:

D:\Program Files\OC\RivaTuner v2.24\

Make sure rivatuner is NOT running when you launch voltagetuner or it will complain it can't find the rivatuner exe. Once voltagetuner started then you can start rivatuner if you want to.

[r4st4m4n]

Anyone tried with the HD 5870 ? Does this softmod work ?

[benko]

nvm got it

[overclocking101]

Anyone tried with the HD 5870 ? Does this softmod work ?

I dont have one yet but word on other forums is yes it works because the 5870 and 5850 both udse the volterra Vregs. g luck m8

[r4st4m4n]

I dont have one yet but word on other forums is yes it works because the 5870 and 5850 both udse the volterra Vregs. g luck m8

Thamks for the reply. I can confirm that it works as I got myself the ASUS HD 5870 since. I'm using msi afterburner and it works like a charm. I'm waiting for my EK waterblock to psuh the voltage for 24/7 use though