SUPER MICRO Computer I2DMR-8G2 - Manual (Page 77)

A-7
Appendix A: BIOS POST Checkpoint Codes
A-2 Common Debug Codes
Common Debug Codes for the motherboard are listed below:
DS4 DS3
On On: SNC found and start memory sizing
On Off: Initial system memory and SIOH
Off On: Valid memory and SIOH found
Off Off: ICH4 found
Checkpoints Code Description