User`s manual

2-22
X7SB4/X7SBE User's Manual
X7SB4
A
Alarm Reset
If three power supplies are installed,
the system will notify you when any of
the three power modules fails. Connect
JPR1 to a micro-switch to enable you to
turn off the alarm that is activated when
a power module fails. See the table on
therightforpindenitions.
Alarm Reset
Pin Denitions
PinSettingDenition
Pin 1 +5V
Pin 2 Ground
Serial_Link GPIO Headers
Two Serial_Link General Purpose Input/
Output (GPIO)headers (T_SPIO1&T_
SPIO2) are located on the motherboard.
These headers are used to communicate
with the System Monitoring Chip on the
backplane. See the table on the right for
pindenitions.Refertotheboardlayout
below for the locations of the headers.
SATA_GPIO
Pin Denitions
Pin#Denition PinDenition
1 NC 2 NC
3 Ground 4 DATA Out
5 Load 6 Ground
7 Clock 8 NC
Note: NC= No Connections
B
C
A. T_GPIO1
B. T_GPIO2
C. Alarm Reset