Supermicro SuperServer 2026GT-TRF, User Manual, Page: 48 / 106

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UPER
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ERVER 2026GT-TRF User's Manual
HDD/FP UID Button
The HDD/UID button connections are
located on pins 13/14 of JF1. Attach a
hard-drive LED cable to display HDD or
SATA activity. This connection can also be
used for the front panel UID (Unit Identi-
fi er) button. (The UID LED on pin 7 of JF1
works in conjunction with the UID button.)
When the user presses and releases the
UID button, the UID LED will be turned on
or off to indicate the location of the unit in
a stack or rackmounted servers.
Power On LED
The Power On LED connector is located
on pins 15 and 16 of JF1. This connection
is used to provide LED indication of power
being supplied to the system. See the table
on the right for pin de
fi nitions.
Power LED
Pin De fi nitions (JF1)
Pin# De fi nition
15 +3.3V
16 Control
HDD/UID LED
Pin De fi nitions (JF1)
Pin# De fi nition
13 UID Signal/3.3V
14 HDD Activity
Fan Header
Pin De fi nitions
Pin# De fi nition
1 Ground
2 +12V
3 Tachometer
4 Pulse Width Modulation
Serial Ports
A COM Port (COM1) is located next to
the UID switch to provide serial port sup-
port. See the table on the right for pin
de
fi nitions.
Serial Port Pin De fi nitions
(COM1)
Pin #De fi nition Pin # De fi nition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 Ground 10 NC
Fan Headers
The X8DTG-QF+ has twelve CPU/system
fan headers (Fan1 ~ Fan12). All are 4-pin
fan headers, which are backward compat-
ible with traditional 3-pin fans. However,
fan speed control is available for 4-pin fans
only. Fan speed is controlled by Thermal
Management via Hardware Monitoring in
the BIOS (the default setting is Disabled).
See the table on the right for pin de
fi nitions.