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Other Connectors
Fan Headers
The 4-pin fan headers 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 IPMI.
Headers FAN5 (9-pin) and FAN_
PWR1 (4-pin) connect to the fan
board in the front of the chassis (Fans
1-7). Four-pin headers FAN8-FAN11
connect to the rear GPU fans, and
the PCI and I/O add-on module fans,
if present.
DOM Power Connectors
Two power connectors for SATA
DOM (Disk On Module) devices are
located at JSD1 and JSD2. These
connectors are used with Supermciro
SuperDOMs to provide backward-
compatible power support to non-
Supermicro SATADOMs that require
external power supply.
TPM Header/Port 80
A Trusted Platform Module/Port 80
header is located at JTPM1 to provide
TPM support and Port 80 connection.
Use this header to enhance system
performance and data security. See
the table on the right for pin definitions.
Chapter 5: Advanced Serverboard Setup
4-Pin Fan Header
Pin Definitions
Pin#
Definition
1
Ground
2
+12V
3
Tachometer
4
Pulse Width Modulation
(PWM)
Pin Definitions
Pin#
1
2
3
TPM/Port 80 Header
Pin Definitions
Pin #
Definition
1
LCLK
3
LFRAME#
5
LRESET#
7
LAD 3
9
+3.3V
11
LAD0
13
SMB_CLK4
15
+3V_DUAL
17
GND
19
LPCPD#
5-17
DOM PWR
Definition
+5V
Ground
Ground
Pin #
Definition
2
GND
4
<(KEY)>
6
+5V (X)
8
LAD 2
10
LAD1
12
GND
14
SMB_DAT4
16
SERIRQ
18
CLKRUN# (X)
20
LDRQ# (X)
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