700mhz wall on HD4850 is smashed.

[GAR]

All cards are reference for now, all bios files are compatible.

[zaraza]

woo! I used gurusans bios that he posted a few posts back. With the 1.2 volts on the core. And im running at 750 mhz right now, looks good. Im waiting for memory heatsinks before i push the ram. Is it possible to go higher than 750 with 1.2 volts? I think ill need to mod it now.

[HeX_00]

woo! I used gurusans bios that he posted a few posts back. With the 1.2 volts on the core. And im running at 750 mhz right now, looks good. Im waiting for memory heatsinks before i push the ram. Is it possible to go higher than 750 with 1.2 volts? I think ill need to mod it now.

Does the bios file change the GPU to 1.2V? what was your max before you flashed?

[gurusan]

yes it will change the vGPU to 1.2v...I personally could not do 750mhz on 1.2v but I could do 790mhz on 1.263

[HeX_00]

Sweet, my cards both top out atm at around 670Mhz on stock bios, if I can squeeze a bit more voltage out of em and hit 700Mhz i'd be a happy bunny.

So if I grabbed my stock bios from GPU-Z and changed volts to 1.263 (like you have in yours) and flashed that (using latest winflash?) all should be dandy?

[gurusan]

Flashing to 1.263 will result in 1.2v, that's still about a .05v boost from stock though so it should be good for 720-750mhz

[HeX_00]

Excellent, well that's my evening planned

Does the latest winflash work then for this? or do I need to use one of the dos flashing utils?

[gurusan]

Personally, i would never use winflash. It's best to use atiflash from dos off a bootable usb stick. A little more inconvenient but it has never failed me, while I've never even been able to get winflash to run.

[HeX_00]

ATi flash it is then, thanks for the help.

[DemonEyez]

i have added only 2 caps to the back (2.5v uf825).. i shall finish doing caps sometime soon.. freaking moving and then going to lake powell on the 7th.. so i am SOOOOOO busy..... i will for sure post pictures of the mods when i am done..

I took a bunch of pictures of the caps and will try to list all of the ratings if I have time when I get home from work

Thanx you guys. Much appreciated!

[splatch]

How much can u do with stock cooling... how much overclock, and how much volt can u have on bios with stock stuff do u think?

[Miwo]

Thanx you guys. Much appreciated!

I wrote about the caps in the 4850 voltmod thread if you want to check

[Boogerlad]

isn't stock vgpu 1.20 volts?

[splatch]

I cant get it... I want a bios that use 160/500 in 2d, but the one that is on this page does not work for me, wrong ID it say...
Then if I put the same numbers in RBE with my original bios then the 2d/3d change does not change att all, they only change if my ATI Overclock is ON.

I want a bios for my ASUS card that have 160/500 in 2d automatic, without ATI overcklock on. Can that be done?
I can link up my original bios if u want? If u could mod it for me? <--- that is for any who can and want to. Thanks

[WiZARD_hun]

I'm using the bios with 160/500 in 2D, but I had to increase the voltage to 0,99V, because it had some artifacts in 2d, with 0,94V.
In 3D it is not stable at 750 mhz (watercooled)
725 Mhz is ok, I didn't try anything else.

for memory 1150 is too much, there are some minor artifacts
and I cant set 1125 in RBE, because there is some checksum error.
sor I can run my card at 725/1100, with only bios Volt mod.

[alexio]

I'm using the bios with 160/500 in 2D, but I had to increase the voltage to 0,99V, because it had some artifacts in 2d, with 0,94V.
In 3D it is not stable at 750 mhz (watercooled)
725 Mhz is ok, I didn't try anything else.

for memory 1150 is too much, there are some minor artifacts
and I cant set 1125 in RBE, because there is some checksum error.
sor I can run my card at 725/1100, with only bios Volt mod.

I can take care of the checksum error for you.

<- e-mail your BIOS to me if you'd like it fixed

[Hicksetto]

Flashing to 1.263 will result in 1.2v, that's still about a .05v boost from stock though so it should be good for 720-750mhz

Hi Gurusan,

I am using your bios which shows 1.4v. I cannot go forward after 700 MHz.

How can I flash 1.263v. as you said?

Thanks,

Hicksetto

[gurusan]

Anything above 1.24-1.25ish will default to 1.2....the 1.4 value in my bios was before I knew that.

It's unstable at that voltage past 700?

[Hicksetto]

Anything above 1.24-1.25ish will default to 1.2....the 1.4 value in my bios was before I knew that.

It's unstable at that voltage past 700?

Yes, could not finish 3d Mark 2006 at 720 MHz

[Miwo]

To get anything above 1.2v, you need to do either pencil or hardmod - simple as that~!

[gurusan]

I didn't. In my previous post I said flashing to 1.263 will result in only 1.2v on the 4850.


I got 1.263 only be pencil modding

[Hicksetto]

Thank you very much. Sorry for mis-understood...

[zaraza]

so if we select more than 1.2 in the bios, it will just provide the maximum correct? Or do we have to edit the bios and specify 1.2v on the core?

[alexio]

so if we select more than 1.2 in the bios, it will just provide the maximum correct? Or do we have to edit the bios and specify 1.2v on the core?

Anything >1.2v will give you +-1.2v.

[adpr_02]

Hey, guru, what voltage are you running from the bios for idle with your pencil mod?

I've got a hard mod at 1.3v right now and I'm getting around 1.1 on idle. I'm thinking that if I flash with less voltage, say .90v it will compensate.