IBM System x3100 M4 Problem Determination And Service Guide

System-board external connectors
The following illustration shows the external connectors on the system board.
Video
Serial (COM1)
NMI button
Ethernet connector 2/
USB connectors 3&4
Ethernet connector 1/
USB connectors 1&2
System-board LEDs
The following illustration shows the LEDs on the system board.
IMM Hearbeat
LED
RTMM
Hearbeat LED
DIMM 1 - 4
error LEDs
Microprocessor
error LED
System board
error LED
Standby Power
LED
Note: When you disconnect the power source from the server, you lose the ability
to view the LEDs because the LEDs are not lit when the power source is removed.
18 IBM System x3100 M4 Type 2582: Problem Determination and Service Guide

IBM System x3100 M4 Specifications

General

Memory	Up to 32 GB DDR3 ECC UDIMM
Memory Slots	4 DIMM slots
Form Factor	Tower
Chipset	Intel C202
Processor Sockets	1
Processor	Intel Xeon E3-1200 v2 series, Intel Pentium series, Intel Celeron series
Storage	Up to 4x 3.5-inch
Power Supply	350W
Hard Drive Bays	4 x 3.5"
RAID Support	RAID 0, 1, 10
Network Interface	Gigabit Ethernet
Expansion Slots	1 x PCIe 3.0 x16, 1 x PCIe 2.0 x4
Operating System Support	Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server