ASRock M3A790GXH/128M 790GX Motherboard

BIOS

ASRock uses the same designed BIOS as ASUS does; we call it the tab BIOS as it's a different setup to the straight down menus of the traditional Award BIOS setup. If you're an ASUS user you will know how to navigate; it's not that hard.

Under the Advanced menu there are several sub menus; the overclocking takes place in the CPU Configuration menu.

Under the CPU Configuration menu you can adjust FSB, PCIe clocks, memory ratios, HT Link ratios and speeds as well as various voltages.

Overclocking

It was a definite surprise to us that ASRock managed to pump out 240MHz FSB stable where SAPPHIRE's board stumbled when going above 220MHz. This was only a crude overclock; 245MHz became unstable, but with more time, voltages and some more tweaking we could possibly get 250+MHz out of this board considering how easy it went to 240MHz.

Important Editor Note: Our maximum overclocking result is the best result we managed in our limited time of testing the motherboard. Due to time constraints we weren't able to tweak the motherboard to the absolute maximum and find the highest possible FSB, as this could take days to find properly. We do however spend at least a few hours overclocking every motherboard to try and find the highest possible overclock in that time frame. You may or may not be able to overclock higher if you spend more time tweaking, or as new BIOS updates are released. "Burn-in" time might also come into play if you believe in that.