SATA and SAS connections
31
Rear I/O POST code LEDs
Eight POST code LEDs in a 4x2 array display the codes written to I/O location 80h during BIOS
POST for diagnostic or debug support. The left column of 4 LEDs represents the upper four bits,
and the right column of 4 LEDs represents the lower four bits; the top LEDs are the LSBs.
The following figure shows some examples.
Figure 7. POST code LED examples
See Chapter A, BIOS Beep Codes and Checkpoints, on page 67 for related information.
SATA and SAS connections
Six serial ATA (SATA) connectors (SATA 0–5) are located on the motherboard. In addition to six
SATA ports, eight SAS connections are also located on the SB5520DT1-SAS. These serial link
connections provide faster data transmission than the connections of traditional parallel ATA. The
SATA connectors are supported by the Intel ICH10R. The SAS connectors on the SB5520DT1-
SAS are supported by the LSI SAS 2 controller.
Notes:
For SATA RAID Configuration instructions, refer to the Intel SATA HostRAID User’s Guide.
For instructions on SAS RAID configuration, refer to the LSI MegaRAID User’s Guide.
POST code 20h POST code 0Ah POST code 33h
Table 41. SATA/SAS connectors pin definitions
Pin # Signal
1 Ground
2SATA_TXP
3 SATA_TXN
4 Ground
5SATA_RXN
6SATA_RXP
7 Ground
To Next Page
Loading...
