The ASRock 939Dual-SATA2's BIOS is a bit different from what we are used to seeing but it has most of the options one expects.

The motherboard clock speed can be adjusted between 200 and 400 MHz in 1 MHz intervals. PCI Express frequency can also be adjusted, but that is better left alone. There are CPU multiplier and voltage adjustments but no chipset voltage options. In the CPU configuration menu we find memory timings that you can play with that to your heart's content!

Features most notable in the Chipset Settings menu are the HyperTransport options as well as DRAM voltage adjustments (Low, Normal, High), oooh exciting.

PCStats Test System Specs:

processor: amd athlon64 4000+ clock speed: 12 x 200 mhz = 2.4 ghz motherboards: albatron k8x890 pro ii (k8t890) msi rs480m2-il (rs480) chaintech zenith vnf4 ultra (nf4 ultra) dfi lanparty nf4 sli-dr (nf4 sli) epox 9npa+ sli (nf4 sli) ecs kn1 extreme sli (nf4 sli) asrock 939dual-sata2 (uli m1695)* videocard: msi nx7800gtx-vt2d256e asus v9999 gamer edition* memory: 2x 512mb pdp pdc1g3200+xblk hard drive: 74gb western digital raptor sata cdrom: aopen combo 52x heatsink: amd athlon64 4000+ reference heatsink powersupply: pc power & cooling turbocool 510 sli software setup windowsxp forceware 6.53 forceware 77.77 workstation benchmarks sysmark 2004 business winstone 2004 content creation 2004 super pi sisoft sandra 2004 pcmark04 3dmark2001se 3dmark05 aquamark3 comanche 4 x2: the threat ut2003 ut2004 doom 3

* to show agp performance, we also ran 3d benchmarks with an asus v9999 gamer edition videocard.