Complete HD4870X2 vmod and biosflash.

[Riska]

Hi i am just done with modding a HD4870X2 gfx for my mate Mathis77 and i tought i would do a little guide so here it comes.
First of the 2 Vgpu mods.
Here is the solderpad on the back of the card for the gpu at the rear of the card.
http://i438.photobucket.com/albums/qq108/riskatoft/Picture080Large-1.jpg

And here is my own discovery the solderpad for the other gpu in front of the card on the back i dont think that others have found it and that is because it is hidden under the laquer on the print abd you have to scratch the laquer of whit a razorblade to get to the solderpad.
http://i438.photobucket.com/albums/qq108/riskatoft/Picture086Large-1.jpg

Now we just have to solder some wires to the 2 solderpoints so here we are first the gpumod for the gpu at the back of the card.
http://i438.photobucket.com/albums/qq108/riskatoft/Picture097Large.jpg
http://i438.photobucket.com/albums/qq108/riskatoft/Picture098Large.jpg
http://i438.photobucket.com/albums/qq108/riskatoft/Picture099Large.jpg

And then the gpumod for the gpu at the front of the card.
http://i438.photobucket.com/albums/qq108/riskatoft/Picture092Large.jpg
http://i438.photobucket.com/albums/qq108/riskatoft/Picture093Large.jpg
http://i438.photobucket.com/albums/qq108/riskatoft/Picture095Large.jpg

And now to solder two 50 Ohms multiturns vrs on the card.
http://i438.photobucket.com/albums/qq108/riskatoft/Picture102Large.jpg
http://i438.photobucket.com/albums/qq108/riskatoft/Picture101Large.jpg
http://i438.photobucket.com/albums/qq108/riskatoft/Picture104Large.jpg

Here is the Vgpu measurring spots for both gpumods
http://i438.photobucket.com/albums/qq108/riskatoft/backLarge.jpg

When this is done we will flash the card with the asus top bios so we can clock the card a little further than normal.

First you have the get som files on the Inet.

http://frip.dk/riget/asus0.rar

http://frip.dk/riget/asus1.rar

The 2 Asus top bios With 900mhz core and 1000mhz mem in CCC and 790/915mhz default 3D clocks


http://www.techpowerup.com/downloads/1123/ATIFlash_3.60.html

Atiflash for flashing the card in dos


http://dlsvr04.asus.com/pub/ASUS/vga/app/SmartDoc524.zip

Asus smartdoctor for controlling the fan and oc the card if u dont like the ATI CCC and i you want you ca use Amdgputool but then you have to set the fan after you have ocet the card

http://www.techpowerup.com/downloads/330/.html

HP tool to make your usb stick bootable

http://www.techpowerup.com/articles/34/images/USBImage.zip

Boot image files for the usb stick

And a guide to flash the card

http://www.techpowerup.com/articles/overclocking/vidcard/34/5

atiflash -f -p 0 asus0.bin
atiflash -f -p 1 asus1.bin
what to write in atiflash to flash the card
Enjoy

"Edit" this asus bios has a more aggressive fan profile than the normal
HD4870X2

[Hazzan]

Nice guide.....I will try on my card soon....:):)

[T_M]

Very nice find on the hidden pad

[Nosfer@tu]

Very nice find on the hidden pad

he is VERY SNEAKY :D

I though I was pretty good at soldering.
Then I meet Riska at a OCTeamDenmark bench weekend :D :shrug::shocked:

The guy even forced his Shuttel to run 4.2 Quard core 24/7 :D

great work Riska and cool to share with XS :D

[Riska]

Thanks my mate

[T_M]

Last night i removed one of my pin #9 mods, and attempted the scratch and solder pad method.

FAIL

After carefully scratching/chipping away the surface using a scalpel, i tried to apply a ball of solder but it would not grab at all.
So i gave it some more scratching and tried again - nothing.
Cleaned over the area using a cotton tip and acetone, which seemed to do the trick a bit because after i was able to get a small solder ball to stick - but it promptly fell off when soldering on the wire.
From then on no matter what i tried i could not get solder to stick onto the "pad" again - which was becoming more and more a scratched up mess as i tried over and over.

In the end i gave up and soldered back onto pin #9 and the card is back up and running.
My advice - dont asume the scratch and solder method is easy.

[dinos22]

oh man that suxorz

[Riska]

I have now made 4 cards and i have no problem with the solderpad i just scratch the laqer away and solder on to the solderpad

[Nosfer@tu]

Maybe you scratched to much T_M ?

[T_M]

well i scratched very little to start with, and even until the end had a tiny ring of copper exposed.

[spl]

hi
my compliments
this mod is really easy!!!
i can not downoal the smartdoctor because is very slowly is possible thdifferent link???? I don't succeed in finding online it!!
I have to find the way of climbing in c.f. by software since if flash the bios to 960 becomes unstable while if I climb with gpuclock is stable to 960, strange truth?
with single card ok but with vista and the c.f. how do I do to lift the clock to everybody 4 the cores??
you excuse the bad English

[Riska]

I will upload it later tonight ´with more bandwidth

[Pyr0]

this link for asus smartdoctor should work
http://dlcdnet.asus.com/pub/ASUS/vga/app/SmartDoc524.zip

[spl]

thanks Pyr0
but not working with vista and c.f. !!!

[T_M]

http://img.photobucket.com/albums/v310/T_M/IMG_6658.jpg

[Gautam]

Yum.

[gprhellas]

hello friend

i think you must change this 0 to 1 :)

http://i164.photobucket.com/albums/u10/gprhellas/2008-09-18_222129-.jpg

[Riska]

Thanks alot mate it is now fixed

[G H Z]

Hi Riska :D

http://img.photobucket.com/albums/v31/canny/prep_1.jpg
http://img.photobucket.com/albums/v31/canny/prep_2.jpg
http://img.photobucket.com/albums/v31/canny/prep_3.jpg
http://img.photobucket.com/albums/v31/canny/prep_4.jpg
http://img.photobucket.com/albums/v31/canny/prep_5.jpg
http://img.photobucket.com/albums/v31/canny/prep_6.jpg

[Viss]

Back to red pcb :D

[T_M]

No readpoints installed before you sprayed?

[G H Z]

I can read them, just use a different method.

[spl]

thanks riska for the fast vmod!!
940mhz stable on water to 1.41 in c.f.
now is the time for the cascade!!
http://img213.imageshack.us/img213/4081/160fr8.jpg

[dinos22]

maaaaaan you're killing me with your GT2/GT3
how do you set it up dude. put me out of my misery :D

[Joe Camel]

.





first a little practice




http://img72.imageshack.us/img72/655/pict0159vc7.jpg














then the real thing




http://img101.imageshack.us/img101/3913/pict0164uj4.jpg






:up:




update / edit:



mod(s) work, read points done too

but any time i go > ~1.3V** on either core, screen goes off and wont come back on till < or = ~1.3V** (reboot doesn't help)


am i missing something?




** 1.315v on "front" core, 1.288v on "rear"


.

[Joe Camel]

:cussing:

50 Ohms NOT 50k

:down:


thanks Gautam

[dinos22]

outch!!!!

[Gautam]

Well see...at least it wasn't actually 50k and he used 50, then he'd have bigger problems than having trouble setting voltage. :p:

[dinos22]

Well see...at least it wasn't actually 50k and he used 50, then he'd have bigger problems than having trouble setting voltage. :p:

:ROTF: good point

[Vatos_locos]

what about the Vmem Mod for this card is it out ?

i'am going to mod one tomorrow 2x50Ωhms for the cores is that correct ?

[aoch88]

Can I just flash the ASUS Bios on my Sapphire 4870X2 and it'll work? What does it do? Increase the vgpu via softmod?

[Riska]

Here is the wmem mod it is a newer complete guide

http://www.octeamdenmark.com/forums/showthread.php?t=2774