4870 ASUS TOP BIOS (upto 900MHz in CCC)

[fine]

Hi there.
I need some help with my Asus EAH4870 512mb.
The fan is running at 50% idle. So i tried that bios from the "Top" vers .
But that i only give me a black scene. So i have to flash back to the org.bios
Is there any way that i can mod this bios .
The volt i only 1.203 i my bios ?

[chew*]

Finally found my floppy in my pile of old parts and had some time to do this.

Flashed from dos obviously no problems first try, uninstalled drivers, reinstalled drivers ( this is a must imo)

Card is 100% stable with bios. Brand is visiontek.

For those on the fence. Before and after 3d06 comparison. NOTE (cpu real speed is 3.2g, bug with the maxximus board and x8 multi which is why the score appears low.) I like the fan profile, keeps my card at 53C/57C idle/load.

Visiontek bios stock
http://service.futuremark.com/compare?3dm06=8967323

Asus top bios stock
http://service.futuremark.com/compare?3dm06=9124834

[chew*]

On a side note it seems this card is bottlenecked with higher clocks, maybe by my cpu at 3.2

Asus top bios is 15mhz increase in core 25mhz increase in memory netting a 400 pt increase.

Cards top stable is 850/975 with stock cooling and no manual fan control however it only scores 16550 etc its no longer scaling.

With the bios it went up 400 points however with a 35mhz more increase in core and 50mhz more in memory it only goes up 300pts.

[gurusan]

Is there any way to reduce the idle voltage below the setting in the supported voltages table in RBE? I am currently using a sapphire bios on my 4870 and want to vmod it with a permanent fixed resistor. If I could set the idle voltage in the bios for like .8V or so then that would get me around a 1V idle with the vmod.

[FabricioGS]

I have a HIS HD 4870 512MB card and I used to CO with CCC up to ~780/980. Then I flashed to this bios and I'm stable at 840/1050 (maybe I can squeeze some more, but that'll be around that). I'm on stock cooling and don't want to make vmods (the max I would do is change the default TIM for an artic silver).

My question is: why nobody edit this bios to the best clocks you can do on CCC? I mean.. why still use CCC for OC? I'm sure the answer is related to the next question so, I tried to flash my card with clocks higher then 800/1000 but the screen keeps flickering sometimes (I'm guessing this is the correct term in english since I'm not a native speaker), specially when I start GPU-z for instance or during Futuremarks 05/06. I would like to use an stable oc, driver/software independent. Why that happens with the OC from the bios but not when using CCC?

[Markmk]

i got it. he was a bit of a about it, but W1zzard walked me through it . i'll spread the word so nobody else has to bother him.

USING ATI WINFLASH TO FLASH YOUR BIOS

you have to run it through the command prompt.

Step 1: create a new folder in the root directory of your C drive (so you can easily navigate to it in DOS).

Step 2: copy all the ATI WinFlash files and the new BIOS to this new folder.

Step 3: open command prompt and navigate to your new folder.

Step 4: use the normal ATIFlash command: "atiwinflash -f -p 0 4870.rom"

it should take a minute or two to flash. it will tell you to reboot. you'll have to reinstall your video driver. but everything worked for me after that.

WARNING: if you don't get a successful confirmation at the end of the flash, make sure you flash it again before you reboot. you will brick your card if you reboot before a successful flash.

OK i followed these instructions to the letter but after a reboot i dont get a picture. Its hangs on the boot with the LCD POSTER saying VGA BIOS. Ive put my spare 6600 in so i can at least ask how do i fix this? Can i put the 4870 in the second PCI-E slot and flash my old bios back on or will i have to do a blind flash with it in the first PCI-E slot. Any help you can give will be greatly recieved.

[chew*]

I need a new unlocked bios. Runs fine 860/1100 with stock air, once i toss my water chiller online i'm going to run out of slider bar clocks on the gpu as well

[LagunaX]

Finally found my floppy in my pile of old parts and had some time to do this.

Flashed from dos obviously no problems first try, uninstalled drivers, reinstalled drivers ( this is a must imo)

Card is 100% stable with bios. Brand is visiontek.

For those on the fence. Before and after 3d06 comparison. NOTE (cpu real speed is 3.2g, bug with the maxximus board and x8 multi which is why the score appears low.) I like the fan profile, keeps my card at 53C/57C idle/load.

Visiontek bios stock
http://service.futuremark.com/compare?3dm06=8967323

Asus top bios stock
http://service.futuremark.com/compare?3dm06=9124834

Mine is a visiontek as well and is 100% stable.
Flashed with atiwinflash from windows vista thru accessories cmd prompt no problems...

[chew*]

Mine is a visiontek as well and is 100% stable.
Flashed with atiwinflash from windows vista thru accessories cmd prompt no problems...

See how high it can go now I still ran out of ram clocks......need the bios unlocked so i can go past 1100 ram

[Godmyster]

Hey,

i dunno if this is a problem or not but i was doing a little OC on my card and noticed that the memory wont pass 1050, starts getting artafacts in 3dmark2006 and GPU freezes at 840, so like if i want to OC the card and get it to pass without artafacts and freezing i have to do like 830/1050, is this a problem with these cards from sapphire? is it possible to resolve this? like with a diferente bios or something like that?

Here is the model that im talking about..



http://www.sapphiretech.com/us/produ...gpid=250&grp=3

Thanks