Processor
Processor manufacturer	Intel
Processor family	Intel® Xeon® 5000 Sequence
Processor model	E5520
Processor frequency	2.26 GHz
Processor boost frequency	2.53 GHz
Processor cores	4
Processor cache	8 MB
Motherboard chipset	Intel® 5520
Memory channels supported by processor	Triple
Number of processors installed	1
Thermal Design Power (TDP)	80 W
Processor cache type	Smart Cache
System bus rate	5.86 GT/s
Maximum number of SMP processors	2
Processor socket	Socket B (LGA 1366)
Processor lithography	45 nm
Processor threads	8
Processor operating modes	64-bit
Stepping	D0
FSB Parity
Bus type	QPI
Number of QPI links	2
Processor codename	Nehalem EP
Tcase	72 °C
Maximum internal memory supported by processor	144 GB
Memory types supported by processor	DDR3-SDRAM
Memory clock speeds supported by processor	800, 1066 MHz
Memory bandwidth supported by processor (max)	25.6 GB/s
ECC supported by processor
Execute Disable Bit
Idle States
Thermal Monitoring Technologies
Processor package size	42.5 x 45 mm
Processor code	SLBFD
Physical Address Extension (PAE)	40 bit
Embedded options available
Number of Processing Die Transistors	731 M
CPU multiplier (bus/core ratio)	17
Processing Die size	263 mm²
Processor system type	DP
Processor series	Intel Xeon 5500 Series
Conflict-Free processor

Memory
Internal memory	6 GB
Internal memory type	DDR3-SDRAM
Memory slots	18
ECC
Memory clock speed	1066 MHz
Memory layout (slots x size)	3 x 2 GB
Maximum internal memory	144 GB

Storage
Total storage capacity	0 GB
RAID levels	1, 5, 6, 10, 50, 60
Hot-swap
Optical drive type	DVD Super Multi

Network
Networking features	Gigabit Ethernet
LAN controller	Intel® 82575EB

Ports & interfaces
Ethernet LAN (RJ-45) ports	3
USB 2.0 ports quantity	10
VGA (D-Sub) ports quantity	2

Ports & interfaces
Serial ports quantity	2

Expansion slots
PCI Express x4 slots	5
PCI Express x8 slots	2

Design
Chassis type	Tower (4U)

Software
Compatible operating systems	Microsoft Windows Server 2008/2003 Linux Enterprise Server Red Hat Enterprise Linux

Processor special features
CPU configuration (max)	2
Intel Rapid Storage Technology
Enhanced Intel SpeedStep Technology
Intel® Wireless Display (Intel® WiDi)
Intel Virtualization Technology for Directed I/O (VT-d)
Intel® Anti-Theft Technology (Intel® AT)
Intel® Hyper Threading Technology (Intel® HT Technology)
Intel® My WiFi Technology (Intel® MWT)
Intel® Turbo Boost Technology	1.0
Intel® Quick Sync Video Technology
Intel® InTru™ 3D Technology
Intel® Clear Video HD Technology (Intel® CVT HD)
Intel® Insider™
Intel Flex Memory Access
Intel® Smart Cache
Intel® AES New Instructions (Intel® AES-NI)
Intel Trusted Execution Technology
Intel Enhanced Halt State
Intel VT-x with Extended Page Tables (EPT)
Intel Demand Based Switching
Intel Clear Video Technology
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)
Intel 64
Intel Virtualization Technology (VT-x)
Intel Dual Display Capable Technology
Intel FDI Technology
Intel Fast Memory Access
Processor ARK ID	40200

Power
Power requirements	AC 100-240V@50-60Hz
Redundant power supply (RPS) support
Power supply	800 W

Operational conditions
Operating temperature (T-T)	10 - 35 °C
Operating relative humidity (H-H)	10 - 85%

Certificates
Certification	TÜV GS, CE Class A, CSAc/us, FCC Class A, CB, RoHS, WEEE, VCCI Class A + JIS 61000-3-2, C-Tick, CNS 13438 class A

Weight & dimensions
Weight	40 kg

Other features
Storage drive controller	ICH10B
Dimensions (WxDxH)	286 x 745 x 466 mm
Mac compatibility
Storage drive type	6x 3.5" SAS/SATA / 12x 2.5" SAS/SATA