Hello, pretty new to this bitcoin thing, and the GPU tweaking that goes along with mining for it.
I have been playing around with the XFX 6950 card I have in my gaming rig.
2GB ram, stock core 840/1250 with two monitors, 24" 1080p and 21" 1280/1024 Win7 pro 64bit
I have flashed it with an XFX 6970 bios which opens up a bit more range, along with the extra shaders.
Playing around, I have found that 900 is about as high as I can get and keep the system stable. Pretty sure I'm missing something here, since I'm not too confident in my overclocking knowledge.
905/1250 gave me a stable system with about 360-365Mhash/s without any flags
900/1250 gives me a stable system(so far, 3 hours in) with the voltage bumped to 1.175 I get ~397Mhash/s with -v -w128 set
One problem I have, though, while mining I can not view ANY video at all, or the whole system freezes, and I have to reboot.
What if any flags should I be using within GUIminer? Should I be using another miner?
I understand boosting the core of the gpu= more Mhash/s, what affect if any does modifying the memory core have, up or down?
Is it possible to get a 6950 bios that allows core speeds of 900 for this card? If so, where? I tried looking around, and couldn't get one to let me go over 880.
I have MSI Afterburner, and even with that couldn't get the GPU core over 880 without having to flash the 6970 bios. :-(
Thank you for taking the time to read this.