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

[jeanjean15]

With this bios, you can use afterburner for everything on 5850; with asus bios you can use afterburner for everything on 5870.

Thanks but i wanted to know if it was possible to use Asus 5850 bios with afterburner to increase voltage or not ? In fact i read that some one couldn't ?
Could you confirm ? I want to buy an 5850 asus model but before want to be sure i will be able to use afterburner because the asus soft ( smartdoctor ) do not function !!

[barong]

here it is boys

is this bios works with my 5850 powercolor?
also im noob for flashing vga bios, can anyone give me guide how to flash ati bios under win 7?

[jaredpace]

jeanjean15, there was a problem with some 5850's and Afterburner 1.1, but that has been fixed in version 1.20. There is full control of voltage,fan,clocks and all.

[Monstru]

Guys, the ideea about 5850 and 5870 is pretty simple:

-with normal BIOS, each card can be overclocked with MSi Afterburner 1.2.0 within CCC limits.
-with normal BIOS, each card can be overvolted with MSI Afterburner 1.2.0
-with modded BIOS, there are no CCC limits anymore.


The good part is that you can use your normal bios and MSI Afterburner for fan and voltage settings, and also use AMD GPU Clock Tool to adjust the clocks beyond the CCC limits.
So, you either keep your bios and use MSI AB 1.2.0 for fan and voltage settings and AMG GCT for clocks, or flash the MSI bios and just use MSI ABT 1.2.0 for all. The choice is yours.

[flopper]

is this bios works with my 5850 powercolor?
also im noob for flashing vga bios, can anyone give me guide how to flash ati bios under win 7?

must use dos.
meaning, usb key, linux boot diske tc..and then atiflash with stuff.
several guides out there.

[spajdr]

barong : check first post in this thread, all is there.

[Lightman]

Finally I had time to properly test my card up to 1GHz+ on core.

Results are promising!

Stock volts (1.125V part) card will do up to 900MHz on anything (even Furemark!) but Crysis (less than 60s to crash)!
For Crysis V.High max. clock on stock voltage is 870MHz
Moving to 1.165V looks to make no difference ....
1.2V and welcome to 1GHz+ for anything but Crysis (this time it's bench stable, but not game stable - 15min+)!
1.225V and all is good even after 2h of cutting palm trees
1050MHz core not stable in Crysis (less than 3 minutes to crash).

What is good about those clocks is that all tests were done in closed computer case with GFX card fan left at Auto setting - working GPU temperature 80C-85C!

Loving this card so far!

PS. Memory is crappy on mine - 1270MHz max. stable on longer runs, 1300MHz for benching, but just!

[jaredpace]

1.225V and all is good even after 2h of cutting palm trees

BAHAHAHah~!!!

[Henry]

5850 @ 1075/1300, W3520 @ 4.45 Ghz.

[Monstru]

Nice one Henry! What cooling and what volts on that HD5850?

thanks monstru thanks for posting up now give it some extra volts and high fan speed and lets see what these babies can do

Well, almost 2 weeks later, here it is. Did you like the 1075MHz GPU / 20K Vantage score with HD5870 and i7 @ 4GHz? Well, what about 1030/1300 MHz, 19K HD5850 on air, with stock cooling, with the same 4GHz i7? My job on air is done. Netx time - some LN2 action

[terrybogard]

Hit a huge wall @ 975-980/1275mem on stock voltage, but now I'm up to 1225v which seems a good spot for others, chugging along @ 990/1275. I am trying for the 1000/1300 stable just so I can have the screen shot.

Congrats to those that finally have a 5850 bios to play with; looked like the world was leaving most of you out of the party, loving the clocks alot of you are pushing out on them.

I hit 1000/1300 with 1.250v & 75% fan speed. I took a screen shot; I just need to get gpu-z figured out. I'm having newb issues with doing the validation or whatever...Google a guide on how to get it to show the current core clock settings & will post back.

[Henry]

Nice one Henry! What cooling and what volts on that HD5850?

Stock HSF (fan 100%), 1.35v for 1075. Thx..

[xXxDieselxXx]

Just did my 5850 ... These cards are sweet

Before Unlock


After Unlock

[Sh1tyMcGee]

OK, so which bios do i need for my XFX 5870 if i want to go faster than 900mhz? and why isnt anyone with a 5870 running 1300mhz memory? is there something wrong with running 1300Mmhz? thanks.

[xXxDieselxXx]

OK, so which bios do i need for my XFX 5870 if i want to go faster than 900mhz? and why isnt anyone with a 5870 running 1300mhz memory? is there something wrong with running 1300Mmhz? thanks.

This is what I used but with the MSI Bios instead of the Asus one. I wanted to make sure I had compatibility with Afterburner.

http://forums.overclockers.co.uk/sho...44&postcount=1

MSI Bios:

http://cid-26aaa81850481d85.skydrive...%5E_unlock.A11

And Yes, you can clock it at 1300 just watch for temps and check stability.

[mR Yellow]

OK, so which bios do i need for my XFX 5870 if i want to go faster than 900mhz? and why isnt anyone with a 5870 running 1300mhz memory? is there something wrong with running 1300Mmhz? thanks.

I've seen many ppl running mem at 1300mhz. I set mine to 1300mhz, no probs.
But i don't think the frames gains aren't that high with mem oc.

[Monstru]

Did I mentin I did mine with the normal ATI bios?

Henry - nice scaling up to 1.35v. You either have a very good board, or good amient temps. In either cases, great stuff.

[largon]

Am I imagining or do people (dnottis, Patch, for example) run their cards with no memory VRM cooling of any kind, and with such non-existant GPU VRM sinks? And for some reason these guys also have sinked the respective inductors that actually need no cooling at all.

[R_1]

What I found after disassembling the stock cooler is that RAM VRM part (on HD5870) is not making contact with thermo foam above it and therefore is not active cooled by the top alu plate. At average temps are +10 degrees Celsius greater, than GPU VRM (readings from GPU-Z log file). What it needs is thicker thermo foam.

[largon]

R_1,
Can you confirm whether the GPU cooling element can or cannot be removed from the frontplate? Is it permanently attached?

[pr@$r1g]

Just did my 5850 ... These cards are sweet

Before Unlock


After Unlock

CAN u tell what is the process of unclocking this

[xXxDieselxXx]

This is the guide I followed, except instead of using the Asus bios I used the MSI one to ensure compatibility with MSI Afterburner:

http://forums.overclockers.co.uk/sho...44&postcount=1

Special Thanks to Overclockers UK

Here is the ASUS BIOS
http://rapidshare.com/files/288531683/Asus.rom

Here is the MSI one I used:
http://cid-26aaa81850481d85.skydrive...%5E_unlock.A11

Here's the latest ATIflash

http://www.techpowerup.com/downloads...lash_3.75.html

Here's the tool to format a USB flash drive
http://www.techpowerup.com/forums/at...7&d=1222699942

Here's the bootfiles I used
http://www.4shared.com/file/43544416...FILES.html?s=1 (Extract them, then make a folder called BOOTFILES, stick the extracted files into the folder)


The Steps

Note: Make a backup of your original BIOS using GP-Z

• Plug in the USB drive that you want to use.
  
• Install and run HP USB Disk Storage Format Tool.
• Select the USB Drive. In the "File system" drop down box, pick FAT32. Tick "Quick Format". Tick "Create a DOS startup disk, using DOS system files located at and click the "..." and direct it to the BOOTFILES folder you made.
• Click start.
  
• Once that's done, copy the ATI Flash and ASUS BIOS into the USB drive.
  
• Restart your PC and boot from the USB Flash drive.
  
• Once it's booted in type
• atiflash -f -p 0 asus.rom (If you're not using crossfire)

I used the MSI one so I went: atiflash -f -p 0 MSI_R5850_unlock.A11

DOS did not like the long name so I renamed the file to something short like MSI.A11
[*]Once the flashing is done will ask you for reboot. When Windows boot you will see all your resolution lost and Windows will detect a new video card. You will have to re-install the Ati drivers again to take effect.

If you're using crossfire, I'd suggest you flash each card individually (For people like Virus). More so that I don't know how to flash more than one card at once



Good luck

[spajdr]

Think that for second card when having crossfire you use -p 1 instead of -p 0 parameter.

[Jakethesnake011]

Can someone please PM with the sapphire BIOS for the 5870, the default ones so I have them on file in case I need to reflash, going to try and flash now, but GPU-z wont let me save the BIOS... i dont know why.

Flahs went a okay no hip ups.

[gabe]

I also posted this in the liquid cooling section, (http://www.xtremesystems.org/forums/...&postcount=210)

But here is what my sample board did using our Komodo Waterblock - Note that the temps are at full load using Furmark, immediately after I ran Vantage. CPU is 920 @ 4.3Ghz Apogee XT cooled.