Quote from: djex on April 20, 2011, 03:56:10 AM

Quote from: rezin777 on April 20, 2011, 12:40:26 AM

Quote from: djex on April 19, 2011, 03:57:30 PM

I have a XFX 5850 and it will only go to 775MHz core. Looks like I would have to reflash BIOS. Was hoping I wouldn't have to. If I flash the 5870 BIOS to my card are there any benefits other than giving me a higher clock setting? Like say if I wanted to use the card for gaming or something a few months from now. Would it effect it's performance at all?

Take care to make sure the BIOS you are flashing is compatible with your card. Many XFX are not reference boards and have different voltage regulators on the board.

It might be safer to use RBE to get the BIOS from your card and edit the overclocking limits yourself, then flash the edited BIOS back onto the card.

Yeah did some searching looks like I don't have a reference model.... sigh. Oh well I am able to overclock in Windows with MSI Afterbuner (unlocked) to 900MHz core 1000MHz memory, I wish there was a way to do it in Ubuntu though. I get about ~299Mhash/s with it at those clocks in Windows using the -f 1 in poclbm. I assume if I were to use Ubuntu I could get 310Mhash/s or more.

It doesn't have to be a Reference card specifically. There are all kinds of BIOS mods: http://www.techpowerup.com/vgabios/index.php?page=1&architecture=ATI&manufacturer=&model=HD+5870&interface=PCI-E&memSize=1024

My performance scaled pretty linearly. I get ~317 at 900, ~300Mh/s at 875, ~275 at 850, and ~250 at 825. I'm using -f 0 -v -w 128.

I'm not worried about the power tweaking too much.. I set mine up, got it working, and it's sitting in the corner doing it's thing. I hardly connect to it, just watch my balance on the pool site. I shut down a lot of unneeded services and can administer it and stop/restart any processes I need to from a remote connection.