The BIOS:

     The SL-N4Pro-939 uses the popular Phoenix Award BIOS.  For comparison, I will refer back to the K8TPro review.  This board shows revision 6.0 with a date of 3/31/05.  A quick check of the Soltek website reveals a newer version marked 6/2/2005 to add support for the new dual core Athlons.  With a NEC floppy added to the install we are flashed and ready for testing.

     Lets skip to the good stuff: Advanced Chipset Features.  Soltek has split the frequency and voltage settings between two places.  This is stop one on the journey to OC our Winchester.

The CPU Frequency allows tweaking up to 250.0

Your HT Frequency settings.

     The rest of your common CPU OC settings are found under Frequency/Voltage control.  This is a change from the K8TPro where settings were grouped together.

Our CPU Ratio options are a bit limited given the 9x default.

The CPU Vcore selection is still a Soltek strength.  The settings run in .025 increments down to .800.  Again not as nice as the previous K8TPro.  The decision to max at 1.55 limits overclocking that often requires voltages up to 1.7 V.

DIMM voltages have not changed.

     No surprises in the chipset Vcore.  The BIOS options are pretty standard and allow some room for overclocking, but with the nForce 4 I expected to see a much larger range of options.