Shuttle AS45GTR SiS648 Mainboard Gallery (3)
Overclocker 13 Jul 2002

The BIOS

As usual, System performance can be tuned using the DRAM Clock timing control. In our case, for DDR266 and DDR333, we set it to 2T, Ultra Mode, 1T. As for Async DDR400 mode, we set it to CAS 2.5, Ultra mode, 2T

Shuttle boards are becoming overclockers' choice as they have lots of voltage, fsb tweak available within the BIOS. As we can see from the diagrams below, this board allows CPU Vcore to be set up to a high of 2.40v

VDIMM can be set too from 2.55v to 2.75v as shown in the screen shot below.

CPU: DRAM clock ratio is where you set the Async settings. e.g. 2:3, 3:5 etc. In the screen shot below, we are running CPU FSB at 133Mhz and RAM is at 4:5 ratio => 166Mhz (DDR333)

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*specs are subjected to changes without notice

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