Supermicro A1SAi-2750F - Unit Identifier Switch; Vga

Chapter 2: Installation
2-13
A
B
VGA
A VGA port is located next to the LAN 2/4 ports
on the I/O backpanel. Use this port to connect
to a compatible VGA display.
Unit Identier Switch
A Unit Identier (UID) Switch and two LED
Indicators are located on the motherboard. The
UID Switch is located next to the VGA port on
the backplane. The Rear UID LED (LED7) is
located next to the UID Switch. The Front Panel
UID LED is located at Pin 7 of the Front Control
Panel at JF1. Connect a cable to Pin 7 on JF1
for Front Panel UID LED indication. When you
press the UID switch, both Rear UID LED and
Front Panel UID LED Indicators will be turned
on. Press the UID switch again to turn off both
LED Indicators. These UID Indicators provide
easy identication of a system unit that may be
in need of service.
Note: UID can also be triggered via
IPMI on the motherboard. For more
information on IPMI, please refer to
the IPMI User's Guide posted on our
Website @http://www.supermicro.
com.
UID Switch
Pin# Denition
1 Ground
2 Ground
3 Button In
4 Ground
UID LED
Status
Color/State OS Status
Blue: On Windows OS Unit Identied
Blue:
Blinking
Linux OS Unit Identied
Power Button
OH/Fan Fail/PWR Fail/
LED Cathode
1
NIC1 Link LED
Reset Button
2
Power Fail LED
HDD LED
FP PWRLED
Reset
PWR
3.3 V
3.3V Stby
UID LED Cathode
Ground
Ground
1920
3.3V
X
Ground
NMI
X
NIC2 Link LED
3.3V Stby
3.3V Stby
Battery
JD1
FAN1
FAN2
FAN3
I-SATA4
I-SATA5
J1
J3
JPI2C1
JPW1
JSD1
JTPM1
VGA
LED8
LED3
LED7
JBT1
1
JOH1
JL1
JI2C1
JI2C2
JPK1
JWD1
JPG1
JIPMB1
COM2
COM1
JF1
USB 3.0-2
LAN3/4 LED
LAN2/LAN4
LAN1/LAN3
USB2.0-0/1
USB3.0-0/1
USB 3.0-3
IPMI_LAN
PCI-E 2.0 X8
DIMMA1
DIMMA2
DIMMB2
DIMMB1
I-SATA0
A1SAi/A1SRi Series Motherboard
Rev. 1.00
FP CTRL
JPL1
BIOS
Marvell
PHY
BMC
Bar Code
JUIDB1
CPU
SP1
I-SATA2
I-SATA3
I-SATA1
LED2
A. UID Switch
B. Rear UID LED
C. Front UID LED
D. VGA
C
D
D