BIOS 1 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

ASUS AI allows you to either manually overclock the system or
intelligently/dynamically overclock the system for you through Non-delay
Overclocking System (NOS). For more adventurous overclocker, definitely you
would like to control the overclocking yourself.

BIOS 2 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

The max CPU frequency is up to 400Mhz in 1Mhz increments. This
board allows you to set DDR2-711 memory frequency instead of DDR2-533 when your
CPU is running at 1066Mhz FSB thereby improving the memory performance. However,
the latencies of the memories will be degraded.

BIOS 3 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

BIOS 4 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

The PCI Express frequency can be effectively locked at the
desired frequency now. For best stability, try to fix it at 100Mhz.

BIOS 5 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

Likewise for PCI frequency, it can be locked too at 33Mhz.

BIOS 6 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

The memory voltage can be increased to 2.2V to improve
overclockability

BIOS 7 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

The chipset voltage can be boosted to 1.8V to improve
stability under high FSB.

BIOS 8 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

The max VCore voltage allowed is 1.8V

BIOS 9 ASUS P5AD2 E Premium 925XE w/ 3.46EE & 3.8Ghz

There are a number of termination voltages and this is for the
CPU front-side bus termination voltage which
regulates the voltages for the processors. A higher voltage should help in
improve overclockability.