
NEC 
Offers Application Service Providers 
■
Express5800
and Internet Service Providers 
outstanding scalability and manageability 
for their Internet and Web application 
hosting services, and allows wide-ranging 
enterprises to consolidate their applications 
/
Product Highlights
NEC Express5800/120Rg-2 features up to two Intel® 
Xeon™ Processors 3.40GHz/3.20GHz/3GHz with 800MHz  
system bus and 1MB 2nd cache. It supports Intel® Extended 
Memory 64 Technology (Intel® EM64T), the industry’s latest  
enhancement that allows Intel’s IA-32 processors to run 64bit code and to access large memory amounts. 
and infrastructure services
NEC Express5800/120Rg-2 delivers up to 12GB DDR333 
SDRAM memory (6 DIMM sockets) with ECC and Chipkill 
capabilities.
In addition, NEC Express5800/120Rg-2 supports Ultra 320 
SCSI hard disk drives, enabling on-board RAID 0/1, without 
a separate disk array controller, and optional RAID 5. 
This prevents loss of important data and allows higher 
system availability in the event of a disk failure, while 
reducing the cost for the extra device. 
For optimal I/O expandability, NEC Express5800/120Rg-2 
offers a total of 6 PCI slots: 3x 64bit/100MHz PCI-X 
(FullHeight) and 3x 64bit/66MHz PCI-X (LowProfile). With 
new optional riser cards, the slot availability* can be changed 
to 3x 64bit/133MHz PCI-X (FullHeight) and 3x 64bit/66MHz 
PCI-X (LowProfile) or 3x 64bit/33MHz 5V-PCI (FullHeight) 
and 3x 64bit/66MHz PCI-X (LowProfile), enabling a transfer 
speed scalable up to 1066MB/s.
To ensure continuous system operation, optionally hot-swap  
redundant power supply and fans are supported.
Express5800
/
NEC ESMPRO makes your server management easy. With a 
user-friendly graphical interface, a system administrator can 
monitor and control system operation from a remote console, 
and troubleshoot with advanced problem management 
functions. 
NEC EXPRESSBUILDER makes your system installation 
simple. Just by inserting a single CD-ROM and following a 
series of user-friendly customization menus, a system 
administrator can set up and configure the system with ease.
* The PCI slot availability can be changed when the optional riser cards become available.

NEC 
Express5800
Hardware Specification
/
E
x
p
r
e
s
s
5
8
0
0
/
CPU
nd
 Cache
2
Front Side Bus
No. Of CPU
Chipset
®
Intel
Hyper Threading
Technology
®
Intel
Extended Memory 64
Technology
Memory
Standard
Max 
Max
Internal
HDD
I/O
RAID
Hot-Plug
FDD
CD-ROM
Network
Device bays [Free]
Disk Drive bays [Free]
Expansion slots
Graphics 
Intel® XeonTM Processor
3.40GHz/3.20GHz/3GHz 
1MB 
800MHz 
1-2 
Intel E7520
Supported
Supported
1GB(512MB DDR333 SDRAM DIMM x 2) 
12GB (2GB x 6) 
879B (146.5GB x 6) 
Ultra 320 SCSI
On-board SCSI RAID 0/1 
SCSI RAID 5 (option)
Supported
3.5” x 1 
X 24, ATAPI 
10/100/1000BASE-T x 2 
1[1] (3.5” bay) 
6[6] 
64bit/100MHz PCI-X x 3 
*1
64bit/66MHz PCI-X x 3 
Integrated ATI RADEON 7000 (8MB)
Power supply
Cooling fan
Standard: 1, not redundant, 600W 
Option: up to 2, redundant, hot-swap
Standard: not redundant 
Option: Rredundant, hot-swap
Video x 1, Keyboard/ Mouse x 1 
External interface
USB2.0 x 4, LAN x 2, SCSI x 1 
Serial x 2
Dimension
Weight
Support OS
483Wx817.6Dx87.4H mm 
(including front bezel)
21kg (standard), up to 30kg 
Windows® 2000 Server / Advanced Server
Windows
®
 Server 2003, 
Standard Edition / Enterprise Edition 
Red Hat Linux
*1
 Operate at 66MHz if all the three slots are used.
*2
 The key board and mouse can be connected together by using 
  a Y-cable provided with the main unit.
*2
• 
Microsoft, Windows NT, and Windows are registered trademarks of Microsoft Corporation in the U.S.
• 
Intel, Intel Xeon, and the Intel Inside Logo are registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.
• 
Linux is a trademark of Linus Torvalds.
• 
Red Hat is a registered trademark of Red Hat, Inc. in the U.S.
• 
All other products, brands, or trade names used in this document are trademarks or registered trademarks of their respective holders.
• 
Specifications are subject to change without notice.
For further information, please contact:
Cat.No. E04BS9
NEC 
Express5800