what proc u use??
mine can go above 300 easily without touching any voltage option.

take note this is my htpc running with cheap xqbox xcube casing with xp90c without fan actually my nidec fan cannot fit into casing. so i replace it with 12cm exhaust fan. this fan not directly contact with the heatsink becoz no space. Ram running at 667Mhz divider.
when i just bought this i try running it with high htt 330 and low multi no problem at all.

p/s u can see i havent tweak anything everything running at stock including ht link. 1.5ghz this board really easy to oc just ram voltage kinda low.

u mean F3 izzit?
i'm also waiting for the deneb for my main rig. K8 will suit my HTPC better.

Just for your info.. the only thing i regret about this GA-MA78GM is the VDIMM 2.1v only. Biostar sure have adequate VDIMM.
I think Gigabyte have a more stable BIOS i try clocking HTT from 200~390 no problem at all and no FSB/HTT hole at all. Biostar not sure.. but sure have more BIOS option than GIGA, if refer to their previous m-atx eg: tfoce6100. but lack of support.

i tot TA780g come with heatpipe and the chipset should be warm only. mine also quite hot inside a cramped case around 60degree. especially if i raise te chipset voltage to more than 1.3V.

so i put my old socket A fan to the heatsink. now temperature below 40.