Chapter 2: Installation
2-33
A. BBU (Optional for
X9DRH-7F/7TPF)
B. Onboard CMOS
Battery
Onboard CMOS Battery
The onboard CMOS battery is located next to
memory slot P1-DIMMC1. Be sure to use the
type of battery recommended by the manu-
facturer. Following the instructions listed in
Chapter 3 for battery removal and installation.
JS3
SAS4-7
JPWR1
JPWR2
JTPM1
T-SGPIO1
FP CTRL
JPS1
LEDS1
FAN4
FAN3
USB4/5
USB6
USB8/9
T-SGPIO-S
JPME2
JPME1
B
A
Battery Backup Unit (Optional for the
X9DRH-7F/7TF Only)
An onboard SAS Battery-Backup Unit (BBU)
connector is located at JS3 on the mother-
board. The BBU provides battery backup
support for onboard SAS to prevent data loss
during a power outage. An optional battery
backup accessory kit is required for BBU
support. Contact our sales at Supermicro to
purchase an LSI 2208 SAS Battery Backup
Accessory kit. Also, contact our tech support
for installation instructions and possible com-
ponent updates.
BBU
PinDenitions
Pin Denition Pin Denition
2 Inplace2 1 Inplace1
4 3V3 3 +12V
6 Ground 5 Ground
8 PFAIL_N 7 P1V5
10 BBE 3V3 9 Ground
12 3V3 11 P3V3 STBY
14 Ground 13 VBB15
16 BBU_SMBDA
3V3
15 Ground
18 Ground 17 +3.3V
20 BBU_SMBCL
3V3
19 Ground