AK89 Max uses Phoenix AwardBIOS and
under Advanced Chipset Features, you can find the settings for AGP, LDT
bandwidth and speed, DRAM configurations.
Under DRAM configuration, you can
find the TRAS, TRCD, TRP and CAS Latency and manually tweak the timings to
deliver best stability and performance.
You can adjust the
Lightning Data Transport (LDT) or HyperTransport bus speed
and width to achieve a maximum bandwidth of up to 6.4 GB/sec per connection. By
default, it should be at 800Mhz. When overclocking with high FSB usually above
280Mhz, you might need to lower the LDT speed or alternatively increase the LDT
voltage. However, this board does not offer LDT voltage adjustment.
AOpen’s SilentBIOS technology
controls noise level before OS boot and let you check out the current
temperature of CPU and the heat inside chassis as well as voltages. You may
control the rotation speed of specific fans that you have got the options inside
in this page.
AK89 Max provides up to 250Mhz FSB
in 1Mhz steppings and also multiplier options from 4x onwards. However, you can
increase the FSB above 250Mhz and multipliers using Clockgen within Windows
CPU:DRAM ratios of 1:1 at
Synchronous mode, 5:4 and 3:2 or 2:1 at Asynchronous modes which are useful when
overclocking with high FSB.
VCore of up to 1.55V in 0.025V
increments is sufficient for overclocking Athlon 64 on air cooling. However, for
high overclocked speed, a much higher VCore voltage of 1.75V or above will be
AGP Voltage of up 1.6V
AK89 Max provides up to 2.8V DIMM
voltage. Increasing VDIMM will improve memory stability under higher memory