*** Official Radeon HD5800 Series Overclocking Thread ***

[Viss]

Nice tests Eva. Here catalyst 9.10 is better for 3 cards & Vantage.

[Gaul]

MAX on air 5870 @ 1025/1350

[rickxbox]

Did somebody already got his hands on the new VRM coolers from Thermalright the VRM-R3 and VRM-R4? I realy want to know how far the temps will drop.

[zalbard]

http://www.xtremesystems.org/forums/...d.php?t=240336
A new BIOS version (035264) for 5870 with some bug fixes is up here.
But sadly, the unlocked version is corrupted (incorrectly unlocked I assume).
Is anyone willing to provide a correctly unlocked one please (this 035264 version, or a later one)? I'd greatly appreciate it.
Or teach me how to unlock it properly, and I will (not via RBE, obviously).
Thanks!

[kpablo]

You can unlock it via MSI Afterburner, modifying a hidden feature.

[Barr3l Rid3r]

http://www.xtremesystems.org/forums/...d.php?t=240336
A new BIOS version (035264) for 5870 with some bug fixes is up here.
But sadly, the unlocked version is corrupted (incorrectly unlocked I assume).
Is anyone willing to provide a correctly unlocked one please (this 035264 version, or a later one)? I'd greatly appreciate it.
Or teach me how to unlock it properly, and I will (not via RBE, obviously).
Thanks!

Nice bios, now I can run 900Mhz on my 5850 w/out a glitch and that's using CCC w/ stock voltage (1.17V)

[zalbard]

Nice bios, now I can run 900Mhz on my 5850 w/out a glitch and that's using CCC w/ stock voltage (1.17V)

The BIOS is nice, it also fixes some eyefinity glitches.
Just wish the unlocked version worked... I flashed the normal one, getting some reports about the unlocked version being broken, and RaBit says that CRC failes for that one, so I am waiting for someone to unlock it properly so I can OC with it as well.
Apparently unlocking is easy, just need some special ATI tool.
Check this thread.

We used ATI official tool that provide to AIB to modifiy the BIOS setting and BIOS is digitally signed by ATI, sorry the tool can't be released publicly. And yes, we will apply it to MSI 5850 (also 2nd shippment of 5870, and future 5700 series).

by Garrett_Wu.
I don't wanna register there just to ask them to unlock this BIOS, I'm sure there are more people here who have it and are willing to unlock the BIOS for us.

[HMB]

Nice bios, now I can run 900Mhz on my 5850 w/out a glitch and that's using CCC w/ stock voltage (1.17V)

You flashed your 5850 with a 5870-bios? And it works?

[Barr3l Rid3r]

You flashed your 5850 with a 5870-bios? And it works?

Yes it does flawlessly, better then original 5850, now it works perfect @ 900Mhz w/stock 5870 vgpu.

[nikolas61]

MAX on air 5870 @ 1075/1290

[-=[kz-0]=-]

MAX on air 5870 @ 1075/1290

how much voltage required to get to those clocks???wow thats insane..i saw a card pushed 1100 on the core but its WC..nice

[nikolas61]

how much voltage required to get to those clocks???wow thats insane..i saw a card pushed 1100 on the core but its WC..nice

voltage is 1.262V

[nikolas61]

all on air

i think that result is best momentarily on air

MAX on air 5970 @ 1000/1290

voltage is 1.262V

[merc.man87]

MAX on air 5870 @ 1075/1290

Are you using the default bios for that? Or have you flashed to something else?

(I am a first time Extremesystems user!!!!)

[nikolas61]

Are you using the default bios for that? Or have you flashed to something else?

(I am a first time Extremesystems user!!!!)

default bios...

[zalbard]

Are you using the default bios for that? Or have you flashed to something else?

(I am a first time Extremesystems user!!!!)

to XS then!

[merc.man87]

Okay, so right now i am using afterburner 1.41 and i can clock it to about 1050 and 1200, and slide the voltage all the way across to max, now is it actually using that much voltage, or is it still stuck at the default voltage?

[zalbard]

It wouldn't be stable at the default voltage, so pretty sure it uses that much.

[merc.man87]

If i can get that high, then what would be the benefit of flashing to another bios, say msi or asus? Is there any? i have the xfx black edition .

[jaredpace]

benefit would be having powerplay active and clocks & voltage lowering during 2d & idle.

[dcl]

If i can get that high, then what would be the benefit of flashing to another bios, say msi or asus? Is there any? i have the xfx black edition .

The black edition has higher clocks than stock correct?

Any chance the black edition BIOS is available online?

[-=[kz-0]=-]

i'm sucking my thumb atm..this...errr i mean your clocks are as insane as what i think hell looks like..i'm capping off to 1000/1300 atm with 1.225v more than that even with a tad of voltage i can't push through..

[merc.man87]

The black edition has higher clocks than stock correct?

Any chance the black edition BIOS is available online?

I haven't seen it, when i get a chance i suppose i could upload it it. Yea the stock clock is higher, what sucks is i see people with 1300 and 1350mhz on the memory, i wish i could get that high.

[cirthix]

Do we have a working way to commit clocks, voltages, and fan control settings to bios? RBE doesn't seem to support 5850 yet.

900/1200 @ 1.15v seems about the max for my card. core can go higher, but needs way more voltage, so i'll just leave it at 900 for now :/

[dcl]

I haven't seen it, when i get a chance i suppose i could upload it it. Yea the stock clock is higher, what sucks is i see people with 1300 and 1350mhz on the memory, i wish i could get that high.

Cool. I'm interested because using standard o/c programs causes the default 2D clock to drop considerably, which in turn causes my second monitor to flicker badly. :o