HD 4870 locked clocks fix

[FunSkilZZ]

hi guy's,

 

i have an 4870 here but its clocks are locked on its standard, so it can only go like 50 mhz higher, now ive read that you can flash the bios so it wil go over these settings,

could anybody help me do that ? its my first time i wil do this so can you give me a detailed explanation please

 

EDIT:i wil probably use it under SS and stock

 

greetz FunSkilZZ

Edited April 4, 2013 by FunSkilZZ

[GENiEBEN]

Have you tried editing the bios clocks with RBE or using the unlocked Afterburner?

[FunSkilZZ]

no , as i told i have never did something like this

[I.nfraR.ed]

Try gputool from techpowerup.

[Gamer]

You can take a look here : http://www.overclock.net/t/359374/how-to-flash-your-hd4870

[FunSkilZZ]

thats what im looking for thanks Gamer

[reggiesanchez]

I used asus top bios and had good results. Tried rbe but never got it to work. Flash in dos, its the easiest way.

[Eeky NoX]

I would have told the same go for asus top bios

 

@Genie: ABX??? lool you mean everybody own it? ...or v2.1?

[FunSkilZZ]

it is an msi card

[reggiesanchez]

As long as its reference pcb it will flash to asus top.

[FunSkilZZ]

how can i exactly see that ?

 

and al the bios download links seem to be dead

Edited April 7, 2013 by FunSkilZZ

[basco]

there is other top bios here:

http://www.techpowerup.com/vgabios/19112/Asus.HD4870.512.080626.html

 

this is 512mb card!!

[FunSkilZZ]

i have 1Gb version

 

this one :

 

[reggiesanchez]

dosent seem to be an awsome 1gb bios just looked at a few though and they all seem to be the same. Have you tried rivatuner I would be pretty suprised if that wouldnt do it. Or gpu tool

[FunSkilZZ]

oke i'l try it tonight. i have also an 4850 with the same problem so it could be fixed with the above options ?

[GENiEBEN]

dosent seem to be an awsome 1gb bios just looked at a few though and they all seem to be the same. Have you tried rivatuner I would be pretty suprised if that wouldnt do it. Or gpu tool

 

Riva works, tho it might need cfg mods for some cards.

 

@Funskillz: If you can't get Riva to work, give me a PM.

[FunSkilZZ]

i dont know how to work with riva

 

EDIT: i found out that there need to be an extra tab in the software see pic below

 

Edited April 9, 2013 by FunSkilZZ

[GENiEBEN]

ATi changed the way overclocking works in newer drivers, so you have to use older drivers.

Catalyst 9.12 should work with RIVA. If I'm not mistaken 4870 was supported by RIVA, without .cfg mods. If not, this covers 4870/4890: http://lab501.ro/download?did=49

[FunSkilZZ]

9.12 drivers gave the same output as the image what do i need to do with the .cfg file ?

[GENiEBEN]

9.12 drivers gave the same output as the image what do i need to do with the .cfg file ?

 

Copy over the original one in the RIVA installed path (C\ProgramFiles\Riva).

 

Btw, you never mentioned how far you want to clock the card. AFAIK the slider went to 1000 core in AB, so for air is enough. For more, open MSIAfterburner.cfg and set UnofficialOverclockingMode to 1.

 

Try Sapphire Trixx to, has unlocked sliders

[Eeky NoX]

Logically you don't need to modify .cfg file for those cards.

 

It's like AB you need to write the code of the non supported card at the end of the list.

 

@Genie: ...or Smart Doctor, GPU Tweak etc...

[FunSkilZZ]

i overwrited the cfg file -> didnt work

sapphire trixx -> gives me higher clock possiblities but wont apply higer than 790mhz

smartdoctor -> wont see the GPU

GPU tweak -> gives no higher clocks than 788mhz

[reggiesanchez]

Rivatuner?

[FunSkilZZ]

gave the same result as in the previous posted image

[crustytheclown]

Υou don't need the second tab to overclock Ati cards from riva.

In the first set of tabs click in the first icon (where usually you see the fan settings for nvidia cards) and adjust the clocks.

The cfg file was needed only for checking-adjusting voltages not clocks.

Locked clocks used to be an early problem with this cards but got rid of it with newer version of riva etc,i remember wrighting a thread about overclocking them through bios flashing... damn that's 5 years ago... http://www.hwbox.gr/ati-amd/1741-pos-na-anebasete-tin-ati-4870-pano-apo-790-1100-pou-afinei-o-ati-catalyst.html