Technical Product Specification

4BSystem Board Interconnects Intel® Server System SR1625UR TPS
32 Intel order number E47487-012 Revision 2.0
The system also supports an active SAS/SAS RAID midplane. This system board incorporates
an LSI LSISAS1078 SAS controller onto the board. For information about SAS/SAS RAID
support, see Chapter 6. The following figure shows the location for each connector found on
this board.
A
Optional RAID Cache Battery
Backup Connection
G Fan 4 Connector
B
Power Connector
H
Fan 3 Connector
C
Mini-DIMM Connector
I
Fan 1 Connector
D
Fan 6 Connector
J
Fan 2 Connector
E Fan 5 Connector K
RAID Activation Key
Connector
F
Bridge Board Connector
L
Backplane Connector
Figure 22. SAS/SAS RAID Midplane Board
Note: A continuous beep sound may be experienced when the SAS controller is disabled in
BIOS. As a workaround, enable the SAS controller in BIOS.
The following tables define the connector pin-outs for both midplane boards:
Table 22. 120-pin Server Board-to-Midplane Bridge Board Connector Pin-out
Pin Signal Name
Pin Signal Name
1 GND
61 SMB_SENSOR_3V3SB_CLK_BUF
2 PE1_ESB_TX_DN3
62 SMB_SENSOR_3V3SB_DAT_BUF
3 PE1_ESB_TX_DP3
63 FM_BRIDGE_PRSNT_N
4 GND
64 GND