IBM System x3100 M4 Problem Determination And Service Guide

Solving power problems
Power problems can be difficult to solve. For example, a short circuit can exist
anywhere on any of the power distribution buses. Usually, a short circuit will cause
the power subsystem to shut down because of an overcurrent condition. To
diagnose a power problem, use the following general procedure:
1. Turn off the server and disconnect all ac power cords.
2. Check for loose cables in the power subsystem. Also check for short circuits, for
example, if a loose screw is causing a short circuit on a circuit board.
3. Remove the adapters and disconnect the cables and power cords to all internal
and external devices until the server is at the minimum configuration that is
required for the server to start (see “Solving undetermined problems” on page
147 for the minimum configuration).
4. Reconnect all ac power cords and turn on the server. If the server starts
successfully, replace the adapters and devices one at a time until the problem is
isolated.
If the server does not start from the minimum configuration, replace the components
in the minimum configuration one at a time until the problem is isolated.
Chapter 3. Diagnostics 145

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