Flashing my Radeon 4870 in X64

[alex98uk]

I have done BIOS flashes with old 8800gt's before, but i am seriously lost as to where to start with my 4870. Are there any good set of instructions that explain how to do it?

So far i have done the following:

Downloaded AtiFlash 3.60.
Downloaded "ATIHD4870512MBOCX795-1100MHz.zip"
Extracted old BIOS using GPU-Z 0.2.8

Now, i hear you can flash straight from Windows using CMD. However, when i try running "atiflash.exe -i" i get the 64bit error:

http://www.totalgamingnetwork.com/main/picture.php?albumid=60&pictureid=2350

Is there anyway to get around this? And, if i can, what do I do next?

Specs in case you need them:

Q6600 @ 3.6ghz
Asus P5Q Deluxe
Powercolour Radeon 4870 512mb
Creative X-Fi XtremeMusic
160gb RAID0 & 400gb RAID1
Corsair HX620W

[AgentGOD]

How many times do the tech people have to say this... ATIFLASH ONLY WORKS UNDER DOS!

[SubtleOne]

I use Vista 64 (http://www.xtremesystems.org/forums/showthread.php?t=196551&page=8).

[AgentGOD]

I use Vista 64 (http://www.xtremesystems.org/forums/showthread.php?t=196551&page=8).
And what's your point?

[cirthix]

atiflash=dos
ati winflash=windows

check techpowerup for latest downloads

[philbrown23]

flashing from windows is not advised anthow 4870's are very easy to bork in windows flashing, I did it to 2 of mine and now they are borked dont say I didnt warn you