Abit SI-2PS User Manual page 33

BIOS Setup 3-7
MPS Version Control For OS
This item specifies which version of MPS (Multi-Processor Specification) this
motherboard will use. Leave this item to its default setting.
Delay IDE Initial
This item allows the BIOS to support some old or special IDE devices by prolonging
this delay time. A larger value will give more delay time to the device for which to
initialize and to prepare for activation.
User's Manual