MSI X99S MPOWER

Chapter 1

Getting Started
Switch
BIOS1: Multi-BIOS Switch
This motherboard has two built-in BIOS ROMs (Labeled A and B, default BIOS ROM
is A). If one is crashed, you can shift to the other for booting by sliding the switch.
AB
Blue LED
Green LED
BIOS recovery with AFUDOS command
When BIOS updating fails or causes the computer non-bootable, you can recover the
failed BIOS by the steps below.
Preparation:
1. 󰘱
2. 󰘰󰘲
󰘰
 󰘰󰘱
BIOS recovery steps:
1. 󰘯
2. Set the Multi-BIOS switch to the functional BIOS ROM.
 󰘱
4. 󰘱
5. Set the Multi-BIOS switch to the failed BIOS ROM.
6. 󰘱

7. 󰘱
Important
Do not use the Multi-BIOS switch when system is booting up.