4870 ASUS TOP BIOS (upto 900MHz in CCC)

[r4st4m4n]

Yeah. It gives a system ID mismatch error or something like that. I could edit the clocks from the Asus bios to my vanilla bios that i use but i don't know if there is something more to the Asus bios then the clocks and fan profiles.

There is a way to force the flash with a mismatch ID involving executing atiwinflash from prompt and passing some arguments. Check the beginning of this thread (page 2-3 IIRC)

[AriciU]

Thanks. It worked. Stupid of me not to check the thread properly before ing about it.

[xMrBunglex]

i find running the gddr5 above 1045 causes a core overclock of 860 to become unstable... if i keep the mem clocked @1045 i have no issues what so ever...

i think it might be the memory thats getting too hot xMrBunglex... try out my theory, good luck....

sadly, no. i lowered my mem down to 800 MHz and it didn't affect my results at all. my memory overclocks fine, but the GPU in my top card appears to be a dud. 800 max so far. i'll try a few more tricks before i give up on it. i'll report back if i have any results worth sharing.

[AriciU]

Did the Asus people lower the memory voltage with this bios by any chance?

I was stable before at max CCC settings 790/1100. Now i can only do 815/950 before Firefly forest (3dm06) freezes. Maybe the higher core clock is limiting my memory overclockability but still... these are clocks compared to what other people in this thread are getting.

Which would be better anyway? 790/1100 or 815/950? I'm guessing the first clocks would be.

[highspeed]

Hey nice win skin you have, checked your 3dmark06 score, whats that oO

[dnottis]

Which would be better anyway? 790/1100 or 815/950? I'm guessing the first clocks would be.

815/950. Have you tested with more memory bandwidth? It does nothing The HD4870 has more than enough memory bandwidth at 900 (3.6GB/sec), you really dont need anymore - better to oc the core at with a 4870.

[Jaivan]

Wow thanks a lot works fine on both my HIS 4870's.

[purecain]

when my cards (both HIS) arrived the gddr5 worked flawlessly @max clocks and i was even able to run furmark(i dont recommend using this bench with 4870 by the way)...

a few days later and the ram on both cards had degraded... i could no longer run at those clocks unless i lowered the mem to roughly 1000mhz... i'm wondering if everyone running high mem clocks will see this same degradation...

sorry to hear about the duff card xMrBunglex... lets hope the card you replace it with, is a winner...

[Blkout]

when my cards (both HIS) arrived the gddr5 worked flawlessly @max clocks and i was even able to run furmark(i dont recommend using this bench with 4870 by the way)...

a few days later and the ram on both cards had degraded... i could no longer run at those clocks unless i lowered the mem to roughly 1000mhz... i'm wondering if everyone running high mem clocks will see this same degradation...

sorry to hear about the duff card xMrBunglex... lets hope the card you replace it with, is a winner...

The memory won't degrade unless you've increased the voltage excessively. If you haven't volt modded your memory then your memory was probably never stable at that speed to begin with or you have another issue causing your instability. My 4870 has been overclocked to 1100MHz since I got it 2 weeks ago and I've had no problems with memory degradation, nor will I since I'm not increasing the voltage.

This 4870 memory degradation is blown out of proportion about as much as the "faulty" stock cooling.

[korrupted]

My honeymoon w/ this bios is over I think. Games are crashing a few seconds in and the comp reboots (this is with setting my clocks back to what was previously stable on my stock bios). Switching to original bios to see if problems still exist.

[AriciU]

Hey nice win skin you have, checked your 3dmark06 score, whats that oO

The wallpaper is from Interfacelift.com, rocket dock, icons from deviantart, skin is called "milk" from macosx.

[xMrBunglex]

for those who haven't seen it yet: the Accelero Twin Turbo.

CrossFire compatible, comes with VRM and memory heatsinks, and even a 4-pin fan connector so you can plug the fans directly into your video card's PCB and control fanspeed through your video BIOS or CCC profiles. i'm excited. heat is definitely an issue when you have two 4870's sandwiched together like i do.

Korrupted, maybe you and i are in the same boat. i'm not game stable over 800 core with this TOP BIOS. maybe i'll mod my original BIOS and see if the same clocks work for me.

[purecain]

@xMrBunglex-nice find pal... best looking coolers i've seen yet...

@Blkout-no volt mods on memory... same system same speed, the gddr5 on both cards has the exact same issue... imo they have suffered from degradation...

[korrupted]

Korrupted, maybe you and i are in the same boat. i'm not game stable over 800 core with this TOP BIOS. maybe i'll mod my original BIOS and see if the same clocks work for me.

I think we could be; it took a full uninstall and reinstall of driver twice before I was back to normal, after I re-flashed back to the original. Running fine at previous speeds of 790/1100 again.

I added a 3rd stick of DDR to my rig yesterday prior to having issues, but they didn't crop up immediately, and I've had this same DIMM in my rig previously, with no problems. I did end up moving the slot it was in, just for the heck of it, after I had re-flashed back to original. Doubtful it was related, but it's a possibility. I'll test again at some point but I didn't like not being able to game yesterday.

[Rick Flair]

I think we could be; it took a full uninstall and reinstall of driver twice before I was back to normal, after I re-flashed back to the original. Running fine at previous speeds of 790/1100 again.

I added a 3rd stick of DDR to my rig yesterday prior to having issues, but they didn't crop up immediately, and I've had this same DIMM in my rig previously, with no problems. I did end up moving the slot it was in, just for the heck of it, after I had re-flashed back to original. Doubtful it was related, but it's a possibility. I'll test again at some point but I didn't like not being able to game yesterday.

I noticed that if you flash a new BIOS, edit the fan speeds in the BIOS you are using, or edit the fan speeds in the profile manager, you should run AMDgpuTool to reset the card and drivers, I described how to do this earlier on in this thread.

Seems that the drivers remember certain settings even after a BIOS change and/or reboot and above method is only way I figured out how to reset them without having to wipe the driver and reinstall it.

[Rick Flair]

Well after a little GPU vmod a 32ohm resistor yielded 1.34 volts (looks nice and clean) and this ASUS BIOS I am stable at 825 core, tested with ATItools artifact free for over one hour.

Although the fan profile in this BIOS was good I edited the BIOS to fan speeds more to my liking, with vmod GPU idle's at 46c with 40% fan speed, and peaks at 64c with 50% fan speed.

[s1Lv3r]

i flash my sapphire 4870 looks fine but when i try to run 3dmark 06 sm3.0 tests not working and try to start GRID i have an error your graphic card not support sm3.0 when i flash org. bios there is no problem wait any idea

[AriciU]

I'm having a very wierd problem. I'm using this bios on both cards and 8.8 beta drivers. I didn't try with 8.7 yet but i don't know if drivers could be causing this.

Anyway, the problem only happens in 2d stuff (desktop) and i can't replicate it on the fly. It's very random. I just browse the net and stuff and for some reason the display turns off, both cards spin their fans at 100% and it just sits like that. Windows still works but i get no display. I have to reboot to get it to work again. It's very annoying and very noisy

Anyone else getting this crap?

[xMrBunglex]

what you're describing almost sounds like GPU Recover. try reinstalling the driver (or installing the 8.7 driver) and see if the problem goes away.

[AriciU]

I reinstalled 8.7 and everything is fine.

[Brave758]

mate could be the PSU ive heard that corsair psu and hd4xxx series cards don't play nice together?

[twwen2]

That's not good. I've got a HX620 and was about to install my 4870. Can you elabourate on the problems?

[babalouj]

I have an HX620 and a 4870, no problems here.

[Harshal]

I am not sure if I have it working fine or not.

This is what happened today for me:
I download mentioned [latest] ATiFlash and BIOS. I take backup of my Jetway 4870 BIOS with GPU-Z 0.26. I flash my card with ASUS.ROM using "atiflash -p -f 0 asus.rom" flashes fine. I restart. Vista 3-4 mins everything ok... then screen starts to break away. Within seconds its a chess board instead of a desktop. Crash. It boots and crashes @ desktop loading. After that it doesnt POST... BlackOps LED POST shows "2b" and I think its da CODE for GFX not found or not present or something. My card from HK, dead in India. Drama. I put my old 6600GT and flash back to original bios. Again it flashes fine. Restart. "2b". I am swearing @ this thread Back to my office from Bench-room. Then I ask around on MSN and also read. M friend "Funky" tells me about "-newbios" switch and accidently I stumble upon it in this thread. Back to bench-room and more flashes. Flash, Again everything ok. boots fine. Screen still tearing up as it boots Vista. After 2-3 mins it crashes. I try to flash original one again without "-newbios". Posts fine. I flash original again with "-newbios". It boots vista with much less tears. Then it suddenly improves. I reinstall driver and it stays on without crashing. Restart and fire up Vantage @ stock speed. done. bump speeds -790/1100. Crash. 790/1000 crash. 790/950. Works. 825/950 strange but crash. 825/925. Works fine. Vantage stable as of now.

I think ASUS bios even tho working for all most everyone except me may have bad effect on rare cards like mine. Not saying its bad or anything. Just may not work with all cards OR have side effect of real bad GDDR5 degradation. I will still try to flash my card to ASUS.ROM again 2moro One Last try!

[AriciU]

mate could be the PSU ive heard that corsair psu and hd4xxx series cards don't play nice together?

Nah. It was the drivers. I'm using the 8.7's again and XP and the problem is gone. 8.8's work fine on Vista64 though and they fly thru everything. 40FPS on Crysis very high 1680