Shuttle choose to use the Award BIOS for their
AK35GTR. There in lies the playground for any overclocker/tweaker and
the board doesn't disappoint. From memory tweaks to voltage and multiplier
controls, Shuttle really allows the user to take full control of their
For unlocked processors, the multiplier can be
adjusted from 5.5-13 and FSB can be tuned from 100 MHz to 200 MHz in 1 MHz
increments. Voltage for the CPU ranges from 1.100-2.300V so for the most
hardcore overclocker, there's no longer a need to voltage mod the
As for the DDR voltage, we were actually a little
disappointed that Shuttle limits it from 2.55-2.7V. That seemed to hamper our
overclocking as we could only push the board to 160 MHz FSB, where as with
the same parts in the 8KHA+ they would top out at 172 MHz and conversely at
170 MHz in the KR7A.
With memory tweaks from CAS Latency
settings to RAS Latency to bank interleaving there are several options for
tweaking the possible 4 GB of PC2100 memory the board will support. Of course
for our testing, the RAM was run at the most aggressive settings.
There's a neat little option that allows a 3/4
memory divider to be used should someone want to see how high their FSB
would go. The 3/4 memory divider works by having the memory running
slower then the FSB. So let's say if you had a 200 MHz FSB, your
memory would only be running at 150 MHz.