IBM System x3550 M3 Type 4254 User Manual

Table 6. System board jumpers
Jumper number Jumper name Jumper setting
J29 UEFI boot recovery jumper
v Pins 1 and 2: Normal
(default) Loads the
primary server firmware
ROM page.
v Pins 2 and 3: Loads the
secondary (backup) server
firmware ROM page.
J147 IMM recovery jumper
v Pins 1 and 2: Normal
(default) Loads the
primary IMM firmware
ROM page.
v Pins 2 and 3: Loads the
secondary (backup) IMM
firmware ROM page.
SW4 switch block
SW3 switch block
uEFI boot recovery
jumper (J29)
IMM recovery
jumper (J147)
Figure 17. System-board switches and jumpers
Chapter 2. Installing optional devices 39

IBM System x3550 M3 Type 4254 Specifications

General

Processor	Intel Xeon 5600 series
Max Processors	2
Memory	Up to 192 GB DDR3
Form Factor	1U Rack
Chipset	Intel 5520
Drive Bays	Up to 4 hot-swap 2.5-inch SAS/SATA or SSD
RAID Support	RAID 0, 1, 10
Network Interface	Dual-port Gigabit Ethernet
Power Supply	460W or 675W
Expansion Slots	2 PCIe 2.0
Weight	Approximately 17.24 kg (38 lbs)
Memory Slots	18 (RDIMM) or 12 (UDIMM)