Help me out with 2 XFX 5850 on the same mobo please... (windows)

[brunoshady]

Ok, I have 2 XFX 5850 on the same dedicated PC crossfired..


so far so good, but when I'm trying to downclock the memory and overclock the core, trough BarelyClocked.exe, I have only one 5850 listed, and I cant overlock the core, only downclock the memory... The other 5850 I can't do nothing... Cant either overclock trough catalyst center or msi afterburner... limit is 775mhz even with the .cfg modification...

They are connected to a 750w power supply...


could anyone help me?

[brunoshady]

I've got a way to overclock the first vga, but the I'm not able to do it with the second one...




they have to be crossfired or can I use them split?

[airdata]

775 is the max ?

sapphire trixx will let you oc one card past the limits other programs have.

i wasn't able to get afterburner to clock past limits either and wound up using radeon bios editor to flash my cards.  ( it's painless )

http://www.techpowerup.com/articles/overclocking/vidcard/154

You'll need to download GPUZ to easily save your current card's bios file.  Then open the file w\ RBE and make changes, and save the updated bios file. Then use ATIwinflash ( dl from within rbe ) load the updated bios, select card, and click 'program card' takes  afew seconds and it will now be flashed.   tell it not to reboot and flash the other card.  reboot and you should now have OC'd cards without having to mess w\  programs.

Afterburner is still great for it's GPU usage and temperature displays + fan control