What flags can I use in GUIminer that can :
a.boost my performance (as I only get 290MHash/s stock speeds as Im afraid of burning out my card by OC'ing,or flashing HD6970 BIO which I don't wanna do)
sorry but there aint much gain to be had with just miner parameters, your pretty safe oc'ing just your core mhz to something stable. voltage and heat are the real killers so watch out for them. under 90c is ok but around 70 is better.
b.Allow me to use other apps without freezing my PC
-f60 for example will affect miner priority and will help with sluggishness , but lockups while using other programs that access the gpu wont be stopped by this. that is a bug that is being fixed in next ati release apparently. though you can try a different miner in the mean time.
c.Keep temperatures and noice under control as that fan is very load at 60% and above.
this is a paradox, as lower temperatures = more noise , and vise versa. you can try finding a happy medium by manually fixing the fan speed to meet your likes, or trying to increase case airflow.
It's a Sapphire board,(has AMD logo on PCI-E connector and bought it on 29/06/2011 so I don't know if it's even unlockable but was on sale)
has it got all the crazy black plastic shroud ? does it have dual bios switch ?with fan in half way along board ? or is it like most stock cards with fan at rear of board ?
stock reference = better for flashing but you should be ok either way to try unlocking shaders
Also I need clear steps on how to just unlock shaders without moding into HD 6970.
backup bios with gpuz
open bios in rbe (radeon bios editor) in extras? enable 6970 shaders option, save as
create boot usb/floppy/cd/whatever
flash with atiflash command line tool off boot dos (not windows)
atiflash -p 0 card.rom
(assuming you have 1 card installed)
if shader count has gone up in gpuz it worked.