Supermicro SuperServer 1028GR-TR - Page 62

5-16
SUPERSERVER 1028GR-TR/TRT User's Manual
Fan Header
Pin Denitions

1 Ground
2 +12V
3 Tachometer
4 Pulse Width Modulation
Fan Headers
The serverboard has twelve fan headers.
Fans 1~4 are for CPU/system use and
Fans A~H for GPU use.. All are 4-pin fan
headers, which are backward compatible
with traditional 3-pin fans. However,
fan speed control is available for 4-pin
fans only. The fan speeds are controlled
by Thermal Management via IPMI 2.0
interface. See the table on the right for pin

Internal Buzzer
The Speaker header, located at JSPK1,
can be used to provide audible alarms for
various beep codes. See the table on the

Internal Buzzer
Pin Denitions

Pin 1 Pos. (+) 5V
Pin 2 Neg. (-) Alarm Speaker
T-SGPIO Headers 1/2/3
Three SGPIO (Serial-Link General Purpose
Input/Output) headers are provided on
the serverboard. T-SGPIO1 supports
I-SATA 0-3, T-SGPIO2 supports I-SATA
4/5. TSGPIO3 is used for S-SATA 0-3.. See

T-SGPIO
Pin Denitions
 
1 NC 2 NC
3 Ground 4 Data
5 Load 6 Ground
7 Clock 8 NC
Chassis Intrusion
A Chassis Intrusion header is located
at JL1 on the serverboard. Attach an
appropriate cable from the chassis to
inform you of a chassis intrusion when the
chassis is opened.
Chassis Intrusion
Pin Denitions

1 Intrusion Input
2 Ground
NC = No Connection
Chassis Intrusion
A Chassis Intrusion header is located
at JL1 on the motherboard. Attach an
appropriate cable from the chassis to
inform you of a chassis intrusion when the
chassis is opened.
Chassis Intrusion
Pin Denitions

1 Intrusion Input
2 Ground