Supermicro 2027R-E1R24L User Manual page 69

S S S
UPER TORAGE
Power On LED
The Power On LED connector is lo-
cated on pins 15 and 16 of JF1 (use
JLED for a 3-pin connector). This
connection is used to provide LED
indication of power being supplied to
the system. See the table on the right
for pin defi nitions.
NMI Button
The non-maskable interrupt button
header is located on pins 19 and 20
of JF1. Refer to the table on the right
for pin defi nitions.
Fan Headers
There are eight fan headers on the
serverboard, all of which are 4-pin
fans. Pins 1-3 of the fan headers
are backward compatible with the
traditional 3-pin fans. (Fan speed
control is supported with 4-pin fans
only.) See the table on the right for pin
defi nitions. The onboard fan speeds
are controlled by IPMI.
ATX PS/2 Keyboard and PS/2
Mouse Ports
The ATX PS/2 keyboard and the PS/2
mouse are located beside the USB0/1
ports. The mouse port is above the
keyboard port. See the table on the
right for pin defi nitions.
Chassis Intrusion
The Chassis Intrusion header is des-
ignated JL1. Attach an appropriate
cable from the chassis to inform you
of a chassis intrusion when the chas-
sis is opened
YSTEM 2027R-E1R24L User's Manual
Pin Defi nitions (JF1)
Pin#
15
16
Pin Defi nitions (JF1)
Pin#
19
20
Pin#
1
2
3
4
PS/2 Keyboard and
Mouse Port Pin
Pin#
1
2
3
4
5
6
Chassis Intrusion
Pin#
1
2
5-20
Power LED
Defi nition
5V Stby
Control
NMI Button
Defi nition
Control
Ground
Fan Header
Pin Defi nitions
(FAN1-8)
Defi nition
Ground (Black)
+12V (Red)
Tachometer
PWR Modulation
Defi nitions
Defi nition
Data
NC
Ground
VCC
Clock
NC
Pin Defi nitions
Defi nition
Intrusion Input
Ground