ATI4890 Bios voltset Guide

[Martin.v.r]

try idit voltset whit Ravatuner http://vr-zone.com/articles/increasi...uner/6880.html I use Gputool to read voltset in bios,try whit rivatuner,not all bios got same voltset in bios
ATI4890 Bios voltset Guide

[aiksweba]

Martin... what are your card? Can my VGA locked from hardware to change voltage?

[Martin.v.r]

i got a MSI 4890 oc
MSI Radeon HD 4890 1GB OC Graphic Card Review - Ninjalane.com

whit org bios 930/1030 MAX oc whit bios mod to 1.4375v 1030/1.175 on air

[aiksweba]

I tryed to find another Powercolor bioses... I need other models... like PCS+... another of vendor nothing happens

[Martin.v.r]

Hae fashion several bios models without problems

[GoldyMKD]

ok, try using the same bios and gputool, giving more power,if it solves it, I will then try to give the bios a little more power.

Now we know that the bios can be together with your card
and it can not be done, then you are probably a bad care

I was busy these days,,,today i try to read the voltages with gputool but didnt give me any information. Why??

[noxon]

I was busy these days,,,today i try to read the voltages with gputool but didnt give me any information. Why??

Could be because the card is not following reference design, and therefor are missing the Volterra 1165 chip witch the programs uses to change the voltage..

Have you tried with MSI Afterburner ?

[GoldyMKD]

Could be because the card is not following reference design, and therefor are missing the Volterra 1165 chip witch the programs uses to change the voltage..

Have you tried with MSI Afterburner ?

Yes i try with MSI Afterburner to,and is the same.Didnt give me option to read/change voltage.

[aiksweba]

Mine too... I cant rise voltages... and I think that voltage mod within bios dont work for me...

[Martin.v.r]

org ATI 4890

an i edit bios toclub 3d hd 4890 superclocked edition,whit lock http://www.hardware.info/en-UK/produ...Mg/viewphoto/1

[aiksweba]

You forced flash? Mine is that
PowerColor Official Website - Graphics, Cases, Power Supply

[gxnickb]

Hello Martin, you are my only hope.

I have two non-reference cards that are being stubborn, specifically the second one will not let me change the voltage with any utility and I was unsuccessful at using the technique/files you posted on earlier pages.

Can you please raise up the voltage in at least the "ASUSbottom" one?

I use water cooling so anywhere between 1.4 and 1.45 would be great! I think 1.4375 would be the best.

I hope you are successful. Thanks!


-nick

[victor]

Yes i try with MSI Afterburner to,and is the same.Didnt give me option to read/change voltage.

maybe you have to enable unoficcial overclocking, i had to with my HD 4770 the setting is in a file called afterburner.cfg, you just open the file change the value at enable unofficial overclocking to 1 so;

enableunofficialoverclocking = 1

[gxnickb]

maybe you have to enable unoficcial overclocking, i had to with my HD 4770 the setting is in a file called afterburner.cfg, you just open the file change the value at enable unofficial overclocking to 1 so;

enableunofficialoverclocking = 1

which file exactly? I found a few but none contained that line, in any form. should I add it to the one in the primary folder (MSI Afterburner)? Thanks, this is a possible solution for me as well.

-gXn

[Martin.v.r]

PowerColor HD4890 Product Name : AX4890 1GBD5
Amaze HD4890 - 1024D5 - non-reference PCB

[Martin.v.r]

gxnickb
I can not read ASUSbottom whit rbetool ?
an ASUS TOP bios can I not edit, but you can try to a XFX 4890 bios

an next time,name it to rom,if RBE must be able to read it as rom

[gxnickb]

Hrm. I think part of my problem is I cannot run either winflash (2.0.1.7) or GPUTool, they crash or do not run properly in my Windows 7 x64; perhaps I need to do a fresh install.

One of the cards is an EAH4890 and the other is an EAH4890 TOP, both are the 2-fan Voltage Tweak edition. The cards seem really close to the reference PCB but the MSI and XFX reference BIOSs do not seem to work. I POST fine and the windows 7 loading logo does its swirly thing but then instead of a login screen it goes to black (no sound either).

Anyone have a successfully-voltmodded EAH4890 VT bios handy? Or perhaps, do you know more about which of these might be able to handle a reference BIOS? I can soft mod the primary card (in Crossfire), but I cannot get software access to the secondary card so my solution is to flash a voltmodded BIOS onto it.

Did you say on an earlier page that I should not try to flash cards while bridged in Crossfire?

Thanks for trying Martin, I wish I understood your technique on page 1 better, but it sdeems to only work with GPUTool.

-gXn

[Martin.v.r]

flash 2x can you,while both sides of your motherboard, but not in cross

whit ativinflash you flash the first,and after NO 2,and then restart.
after which you can showcase bridged cross again.

have you tried to flash both cards with the ASUS Top BIOS,an use smartdoc tool from ASUS to set vgpu ?

[gxnickb]

Ok I will try flashing them with the Crossfire bridge removed. I am flashing off of a DOS USB drive using atiflash.

I have tried ASUS TOP BIOS on the non-TOP card, but it will load windows once at 800x600 and say "No ATI drivers found!," when I install the drivers and reboot then I can no longer get into windows, iut crashes after the Windows 7 logo. I did this while still connected in Crossfire though.

1 card is stock 850/975 @ 1.3v, the other card is stock 900/1000 @1.3125v. If I only put in one card I can control it through SmartDoctor, but in Crossfire I can only change the clocks of the #2 card, I cannot change the #2 card's voltage from 1.3 I can put the #1 card as high as I want with AwardFabrik Voltage Factoryk, but I cannot poll the #2 card

Both cards have the VT1165 Volterra chip so this is very frustrating! If I can just flash one card with a high voltage BIOS then I can make it the #2 card and just softmod the #1 card.

I will let you know about my attempts with no Crossfire.

Thanks
-gXn

[Martin.v.r]

if you want try force falsh the MSI bios 4890 OC ,I run whit is it here http://www.tweak.dk/forum/attachment...tid=16414&sid=
but try using the slower cards first,an test it.
Bios is unlock to 1100/1300 whit 1.4375v

[GoldyMKD]

Martin please lets try for last time If you can,rise the voltages of the MSI 4890 SOS bios to try,if is not ok i will leave it at default And I will looking forward to change my MSI 4890 for some more overclockable card

Tnx for your help anyway

[Martin.v.r]

fuc-k ,by luck I found a hidden volts seen at 1.3625v on MSI 4890 Cyclone
try it.
http://www.tweak.dk/forum/attachment...tid=16784&sid=

you will be welcome with a raport

[aiksweba]

PowerColor HD4890 Product Name : AX4890 1GBD5
Amaze HD4890 - 1024D5 - non-reference PCB

Buaáááááá I got bad card.... I flashed mine to that.. and works fine... but no overclock increments eheh

I will forget it... or put ice on it heehe

[aiksweba]

Martin... one question... u only change voltage registers??

[Martin.v.r]

whit MSI 4890 Cyclone ,yes this time

but i try to mod a Powercolor HD4890 PCS+ to 1.4375v http://www.tweak.dk/forum/attachment...tid=16788&sid= but not ccc this time

[aiksweba]

I will try... thx man... wish me a good luck!

[aiksweba]

ID sytem incorrect...

[Martin.v.r]

you ned to force falsh it

[GoldyMKD]

Martin v.r. i try it the bios works fine but there is no higher clocks,may i can tell is the same like before,,,i think need more voltage

Tnx

[Martin.v.r]

how much would you like in volts

[GoldyMKD]

how much would you like in volts

How much do you think is enough,,i leave it to you,you are the man

[Martin.v.r]

air/watercooling ?

[GoldyMKD]

air/watercooling ?

I have Air cooling,Xigmatek Battle-Axe.

techPowerUp :: Xigmatek Battle-Axe VGA Cooler Review :: Page 1 / 7

[aiksweba]

you ned to force falsh it

Ok... I will try this time! again! heheh ... too hot here... about 40º C at day... 33ºC at night hhehe

[Martin.v.r]

have created a new guide to win 7 64bit to flash rbetool and voltset with ATI 4890
there comes a link
ATI 4890 flash/voltset Guide win7 64BIT

I change the Internet, and should probably not count on me the next 2md

[aiksweba]

this time i got 900 max on core... and 1050 on memory... but no more than this...

[Martin.v.r]

rbetool 1.24 whit volset to mem, no voltset whit 1.2150 an 1.2250 1.2000 next is 1.2375/1.2750
here on air,whit org:cooling

[aiksweba]

I think tha I got VGA with no Volterra regutalor... ... that is my problem...

[Martin.v.r]

Whit water on GPU 1.45v to gpu an mem 1.2375v, mem whit air cooling

[Jaxwins]

Hello there,

I've got a Sapphire HD4890 1Go Non-Standard Version Blue PCB (not Vapor-X), and I can't set the voltage with any software (tried MSI AB, GPUTools etc).

So I wonder if it's possible to set the voltage via GPU BIOS ? I'm actually at 950 core and 1100 memory, and I really need to hit the 1Ghz !

Can you make a bios for me plz ? With a decent voltage for air cooling ?

Here my bios.