1. The r####.bin file is the SATARAID5 BIOS, Use the included system BIOS with the latest SATARAID Tool: SATARAID5 Management Utility.

2. The b####.bin is the BASE BIOS (without SATARAID function). 

To flash the BIOS,

a. Boot to DOS prompt;
b. Enter \Bios directory;
c. Run: updflash xxx.bin;
d. Answer "Yes" and enter.
