Features and specifications
The following information is a summary of the features and specifications of the
server. Depending on the model, some features might not be available, or some
specifications might not apply.
Table 1. Features and specifications
Microprocessor:
v
Supports one Intel quad-core (Xeon
3400 series) or dual-core (Celeron
G1101, Pentium G6950, or Core i3
series) processor the IbexPeak 3420
chip set and Multi-chip Package (MCP)
processor architecture
v
Designed for LGA 1156 socket
v
Scalable up to four cores
v
32 KB instruction cache, 32 KB data
cache, and up to 8 MB L3 cache that is
shared among the cores
v
Support for Intel Extended Memory 64
Technology (EM64T)
Note:
v
Use the Setup utility to determine the
type and speed of the microprocessor.
v
For a list of supported microprocessors,
see http://www.ibm.com/servers/eserver/
serverproven/compat/us/.
Memory:
v
Minimum: 1 GB
v
Maximum: 32 GB
– 16 GB using unbuffered DIMMs
(UDIMMs)
– 32 GB using registered DIMMs
(RDIMMs)
v
Types: PC3-8500 or PC3-10600R-999
(single-rank or double-rank), 1066, and
1333 MHz, ECC, DDR3 registered or
unbuffered SDRAM DIMMs only
v
Connectors: Six dual inline memory
module (DIMM) connectors, two-way
interleaved
v
Supports (depending on the model):
– 1 GB, 2 GB, and 4 GB unbuffered
DIMMS
– 1 GB, 2 GB, 4 GB, and 8 GB
registered DIMMs
SATA optical drives:
v
UltraSlim DVD-ROM combo (optional)
v
Multi-burner (optional)
Hard disk drive expansion bays
(depending on the model):
One of the following configurations:
v
Four 2.5-inch hot-swap SAS hard disk
drive bays
v
Two 3.5-inch hot-swap SAS or hot-swap
SATA hard disk drive bays
v
Two 3.5-inch simple-swap SAS or
simple-swap SATA hard disk drive bays
Note:
– Simple-swap SATA hard disk drives
support AHCI mode.
– Simple-swap models only support
ServeRAID-BR10il adapter.
PCI expansion slots:
Supports two PCI riser slots on the riser
card that connects to slots 1 and 2 on the
system board:
v
Slot 1 supports low-profile cards (PCI
Express Gen2 x8
v
Slot 2 supports 3/4-length, full-height
cards (PCI Express Gen2 x8 or PCI-X
1.0a 64-bit/133 MHz)
Power supply:
One 351-watt power supply or one
351-watt high efficiency power supply with
Active Energy Manager (AEM) depending
on your model.
Fans:
The server comes standard with five
speed-controlled fans.
Integrated functions:
v
Integrated management module (IMM),
which provides service processor control
and monitoring functions, video
controller, and (when the optional virtual
media key is installed) remote keyboard,
video, mouse, and remote hard disk
drive capabilities
v
Intel 82574L Gb Ethernet controller with
TCP/IP Offload Engine (TOE) and Wake
on LAN support
v
Seven Universal Serial Bus (USB) 2.0
ports (two front, four rear, and one
internal for the optional USB Hypervisor
key)
v
Two Ethernet ports
v
Four-port integrated SATA controller
v
Integrated Trusted Platform Module
(TPM) support
v
One serial port
v
One VGA port
6
IBM System x3250 M3 Types 4251, 4252, and 4261: Installation and User’s Guide
Summary of Contents for 4251
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