I have an E5300 in this mobo and I started OC-ing it. The chip runs quite well, however over 295Mhz FSB some flickering black-white squares/dots begin to appear on the screen. It's most likely an issue of the IGP, because these also appear when nothing else is OC-d but the FSB.
I dunno what the problem might be, because the board officially supports even 333Mhz CPU-s, without any OC-ig.
My BIOS settings are untouched except the PCI-E frequency which is fixed @100Mhz , the RAM which is set to 800Mhz (base freq) and ofc the FSB which is set to 295.
CPU : Intel E5300
RAM: 2+1GB 800Mhz CL5
MOBO: Gigabyte GA-G31M-ES2L rev 2.0 with the latest BIOS (FL)
PSU: Chieftec 400W
I use the onboard IGP, and have no dedicated VGA.
Any ideas ?