4870 Diamond XOC BE BIOS (CCC upto 990MHz/1200MHz)

**Rick Flair** · 07-31-2008, 02:08 AM

http://www.mvktech.net/index.php?opt...filecatid=2747

Enjoy, allows up to 990MHz core, 1200MHz RAM.

**Søndergård** · 07-31-2008, 02:43 AM

Thanks Rick!

Just wanted to confirm that it is working:

Unforttunately my card cant handle that clocks on air, så I wil flash back to my costimized bios at 250/1000 --> 780/1000

**gurusan** · 07-31-2008, 03:03 AM

so...the voltages and stuff are all the same?

**Balb0wa** · 07-31-2008, 03:05 AM

having trouble flashing my saphire 4870, anyone got a good guide?

thanks

**~~purecain~~** · 07-31-2008, 04:35 AM

look at the other 4870 oc bios thread for a guide to flashing your bios using atiflash though command prompt.... that should be helpfull...
the asus oc bios has a better fan profile as it keeps your gpu at 60c....

**Søndergård** · 07-31-2008, 05:36 AM

Voltages are the same..

Yes better fan profile, but certainly also very noisy

**zerazax** · 07-31-2008, 12:18 PM

Cant wait to see some 900Mhz clocks now..

**dejanh** · 07-31-2008, 12:32 PM

^ You won't. I have had the card for more than a week now desperately trying to make it run even close to what the hype was bellowing. I went through two cards myself, and I have had a couple of people go through theirs as well. Even the stock 800/1100 does not perform flawlessly. ATITool will cause it to artifact in longer runs, and FurMark will generally either artifact or crash it in longer runs. See this thread...

http://forum.ncix.com/forums/index.p...d=0#msg1758013

...and this thread...

http://www.xtremesystems.org/forums/...=1#post3180781

I am currently running the card at 855/1175 and it appears to be more or less stable. I tweaked the volts a bit to give the core 1.344V at load, and memory to 1.609V at load. You cannot do this through the BIOS however so this is a hard-mod.

Oh, and I must say, this spreads fast, I just uploaded that BIOS to the MVKTech and to this site last night, hehe

I guess people really wanted it.

**gundamit** · 08-01-2008, 01:04 AM

Flashed my Palit 4870s to this bios and was greeted by graphics corruption while running cores at 860 on 3Dmark 2001 test 1. These cards seem to do better with the Asus Top bios, though IDK why.

**BooStFeD** · 08-01-2008, 07:32 AM

Flashed my Sapphire 4870 with WinFlash an works great. Thank you for this bios been hopping it would become available

Clocks are 845/1050 24/7 for now. Have not pushed further. Fan spinning at 50% for now until i put it in my waterloop.

**ante_ante** · 08-01-2008, 02:04 PM

Flashed my sapphire to today, seems to work nice. Running under water so i should test some new clocks soon ...

**steve30x** · 08-02-2008, 03:34 AM

Ill give this a try when I get an ATI 4870 in about 2 weeks. Whats the default clock rates Ram/GPU with this bios?

**CanadaRox** · 08-02-2008, 09:20 AM

800/1100

**annihilat0r** · 08-03-2008, 01:35 PM

Still the best option to OC is custom BIOS flashing with custom fan profiles. That way you get the fan profile you want, and you don't have to deal with CCC, and do everything in the AMD tool. I don't think XOC's fan profile is good, and I don't see any need for it if it can't adjust voltages at all.

I'm at 840/1040 on stock cooler, and it's stable.

**Bootsy** · 08-03-2008, 05:05 PM

I flashed my saphire and my visontek 4870's today CCC shows two different default memory values 990 for the saphire ,but 1100 for the Visiontek. The cards run just fine: http://service.futuremark.com/compare?3dmv=276067

**steve30x** · 08-07-2008, 08:39 AM

Originally Posted by CanadaRox

800/1100

Thank you. Its not overclocked too much so it should be good with my 4870 when I get it next week.

**SNiiPE_DoGG** · 08-07-2008, 08:42 AM

Originally Posted by Bootsy

I flashed my saphire and my visontek 4870's today CCC shows two different default memory values 990 for the saphire ,but 1100 for the Visiontek. The cards run just fine: http://service.futuremark.com/compare?3dmv=276067

thats very odd

I would try modifying the diamond bios for each card in RBE changing the sub vendor IDS

**LagunaX** · 08-07-2008, 08:46 AM

My visiontek came in today.
So should i do this or the asus top bios?

**Unrealer** · 08-07-2008, 10:10 PM

Originally Posted by CanadaRox

800/1100

All the 4870 can do 1100 on mem?

**Bootsy** · 08-08-2008, 03:03 AM

Originally Posted by SNiiPE_DoGG

thats very odd

I would try modifying the diamond bios for each card in RBE changing the sub vendor IDS

Reinstalled CCC 8.7 that fixed it. Cards at 830/1125 stock cooling for now....

**~~CBGPCS~~** · 08-10-2008, 05:57 PM

Can this bios flash also work with the 4870x2 cards with two bios chips on them?

**Harshal** · 08-10-2008, 10:43 PM

Hmmm I have already had a bad time with ASUS TOP on my Jetway 4870. Will try this one. Lets see if it can come back with slightly lower freq on RAM.

**LuxZg** · 08-10-2008, 11:07 PM

Originally Posted by CBGPCS

Can this bios flash also work with the 4870x2 cards with two bios chips on them?

I WOULD NOT do that if I were you. 4870X2 BIOS is probably VERY different as it has to do two chips, plus the parts that are not found in 4870 cards (like PCIe bridge between chips).

**~~CBGPCS~~** · 08-11-2008, 12:41 PM

Is there anybody interested in supplying us with the CCC panel modification for the 4870x2's so we have the ability to clock up to 999Mhz and 1200Mhz??

**AliG** · 08-11-2008, 12:46 PM

hopefully they will do a 4850 version

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