Sapphire HD4850 Bios Modded, Core upper Limit to 850Mhz in CCC!

[MadMikeSS]

Anyone wanna mod my HIS HD4850 bios to increase my upper limit to around 800/1300?

This is a capture of my stock bios: HIS 4850 Stock Bios

[sarmat]

Hi.

As I see, there is a possibility to raise Overdrive limits in BIOS. Why do you modifying old BIOSes (1.0003)? Please, raise up limits to 800/1300 in new 1.0004 BIOS from PowerColor/Sapphire and release it with checksum fixed if that's possible. Please don't change anything else (including fan settings) - only limits. I need this BIOS in this form. Thanks in advance.

Regards,
sarmat.

[leonarderman]

Hi.

As I see, there is a possibility to raise Overdrive limits in BIOS. Why do you modifying old BIOSes (1.0003)? Please, raise up limits to 800/1300 in new 1.0004 BIOS from PowerColor/Sapphire and release it with checksum fixed if that's possible. Please don't change anything else (including fan settings) - only limits. I need this BIOS in this form. Thanks in advance.

Regards,
sarmat.

Here is your Bios: Power Color

I have changed Core upper limit to 1250MHz and memory upper limit 1450MHz
And I don't change anything else!

Good luck!

[MadMikeSS]

Here is your Bios: Power Color

I have changed Core upper limit to 1250MHz and memory upper limit 1450MHz
And I don't change anything else!

Good luck!

leonarderman, you think you can mod my HIS bios just for increased upper limit of around 800/1300.

[Azh_fx]

any chance of modding the bios Power Color and making it so 3d clocks = 1.2v 700/1000

have you tried using powerplay settings 160/500 in 2d? or is that a bit complicated

cheers

[gurusan]

Here is your Bios: Power Color

I have changed Core upper limit to 1250MHz and memory upper limit 1450MHz
And I don't change anything else!

Good luck!

All of these bioses say invalid bios image when I try to flash with atiflash?

[Mysterfix]

All of these bioses say invalid bios image when I try to flash with atiflash?

Have you tried renamimg the files to .rom instead .bin?

[gurusan]

just tried that and no worky.

Also just tried using winflash and it says vbios not found.

leonarderman are you sure you got the checksums right?

[Mysterfix]

It works for me on vista 64, are you using XP, because if you are you have to change the file extension so it shows up as a rom file and not a bin file.

[MadMikeSS]

I was able to flash his bios' no problem, but the one problem I have run into so far is that if I try to install the CAT 8.8 betas it won't recognize my card as a valid ATI card. The CAT 8.7's work fine though and didn't give me a problem. Which is why I'd like to have my own card's bios modded just slightly without messing with the checksums.

[MadMikeSS]

just tried that and no worky.

Also just tried using winflash and it says vbios not found.

leonarderman are you sure you got the checksums right?

Have you tried atiflash from dos with -p -f 0 [bios.bin]?

[gurusan]

Have you tried atiflash from dos with -p -f 0 [bios.bin]?

yeah that was it, i just had to force it. :/

thanks

[MadMikeSS]

Cool, good that that worked out. Hope you don't run into the driver issues like I have.

[regenade]

Same issue with catalyst 8.8 beta in my XP install....the catalyst 8.7 on my Vista worked fine
Its like a similar issue with 8.7 beta where modded bios didn't work...any ideas guys?

[Mysterfix]

Well I tried both the asus and the powercolor but neither one are working with my cards. After I reboot I get no signal from either card with these bios. Had to go back to my original, the saphire one's work but I couldn't change any of the overdrive settings for some reason. Anybody else having this problem?

Edit: I've got a Diamond and a Powercolor

[H3llSp4wN]

hello.

when i flash my gigabyte card with the powercolor bios, it sais that doesn't recognizes it.

can anybody please change the CCC limits on my gigabyte bios file?

Here it is -> http://rapidshare.com/files/13513562...e4850.rom.html

Sorry for my bad english.


thank's

[awdrifter]

dont even think about it

Does anyone have a modded Asus 4850 bios then?

[leonarderman]

Does anyone have a modded Asus 4850 bios then?

Here is your Bios:

3. Asus HD4850 Light Overclocked. DF Core 700MHz Mem 1100MHz Auto Cool Fan.
GPU Core upper Limit 1200MHz
Memory Upper limit 1400MHz
Vcore DF 1.12V no modded

Asus HD4850 Light Overclocked

[leonarderman]

hello.

when i flash my gigabyte card with the powercolor bios, it sais that doesn't recognizes it.

can anybody please change the CCC limits on my gigabyte bios file?

Here it is -> http://rapidshare.com/files/13513562...e4850.rom.html

Sorry for my bad english.


thank's

Your Gigabyte HD4850 Bios here: Gigabyte HD4850 Bios Modded

Core upper Limit 950MHz
Memory Upper limit 1400Mhz

Please update with Atiflash 3.6 or newer (Dos)

Try to Done!

[ken]

Here is your Bios:

3. Asus HD4850 Light Overclocked. DF Core 700MHz Mem 1100MHz Auto Cool Fan.
GPU Core upper Limit 1200MHz
Memory Upper limit 1400MHz
Vcore DF 1.12V no modded

Asus HD4850 Light Overclocked

can you do this with the vmod applied? my card needs more than the default voltage to get 700Mhz stable :p

[leonarderman]

can you do this with the vmod applied? my card needs more than the default voltage to get 700Mhz stable :p

With the Bios default:
Idle: 1.12V
Fulload: 1.263V

Bios Modded able to change Vcore max to 1.327V. Mod more Volt take no effect!

But I think the card HD4850 is easy stable at core 700Mhz with vcore df. With my Sapphire HD4850, I can overclock core to 750Mhz stable easily! Try again or mod Vcore by Pencil to get more result!

[ken]

With the Bios default:
Idle: 1.12V
Fulload: 1.263V

Bios Modded able to change Vcore max to 1.327V. Mod more Volt take no effect!

But I think the card HD4850 is easy stable at core 700Mhz with vcore df. With my Sapphire HD4850, I can overclock core to 750Mhz stable easily! Try again or mod Vcore by Pencil to get more result!

now im confused :p Does it bios come with the soft-vmod applied (to get around 1.2v underload) or not? the default voltage for the HD4850 is around 1.13v underload

p/s: nevermind, I opened the bios file in RBE, it seems that soft-vmod is not applied then

[MadMikeSS]

With the Bios default:
Idle: 1.12V
Fulload: 1.263V

Bios Modded able to change Vcore max to 1.327V. Mod more Volt take no effect!

But I think the card HD4850 is easy stable at core 700Mhz with vcore df. With my Sapphire HD4850, I can overclock core to 750Mhz stable easily! Try again or mod Vcore by Pencil to get more result!

leonarderman, do you think you could mod my HIS bios? I have it linked in a post at the beginning of page 2.
Thanks.

[Mysterfix]

Can you mod my original bios and change only the upper limits please? DiamondHD4850.bin

[drizzt5]

Here is your Bios:

3. Asus HD4850 Light Overclocked. DF Core 700MHz Mem 1100MHz Auto Cool Fan.
GPU Core upper Limit 1200MHz
Memory Upper limit 1400MHz
Vcore DF 1.12V no modded

Asus HD4850 Light Overclocked

With the Bios default:
Idle: 1.12V
Fulload: 1.263V

Bios Modded able to change Vcore max to 1.327V. Mod more Volt take no effect!

But I think the card HD4850 is easy stable at core 700Mhz with vcore df. With my Sapphire HD4850, I can overclock core to 750Mhz stable easily! Try again or mod Vcore by Pencil to get more result!

So wait... If I flash my asus 4850 with this. It will be default clocks of 700/1100, but it will have a vcore max of 1.327v's? Meaning I could quite possibly with the proper cooling get it to 800 core? :/