Single Quad-Core Intel®  Xeon®  3200 series
Single Dual-Core Intel® Xeon® 3000 series
Single Intel®  CoreTM  2 Duo E4000 series
Single Intel®  Pentium®  Dual-Core 2100 series
Single Intel®  Celeron® 430, 1.8GHz, 800MHz front side bus, 512K cache
Single Intel®  CoreTM  2 Duo E4700
Single Intel®  Pentium®  Dual-Core 2220
Single Intel®  Celeron 1200
 
  Memory 
Four ECC DDR-2 533/667 SDRAM DIMM sockets for up to 8GB5 of memory
 
  Operating Systems 
Microsoft Windows®  Server 2008 SP2
Microsoft Windows®  Essential Business Server
Microsoft® Windows® Small Business Server 2003 R2, Standard Edition
Microsoft® Windows® Small Business Server 2003 R2, Premium Edition
Microsoft® Windows® Server 2003, Standard Edition
Microsoft® Windows® Server 2003, 64-bit edition
Microsoft Windows®  Server 2008 x64 Small Business Standard Edition
Microsoft Windows®  Server 2008 x64 Small Business Standard Edition with OpenManage®  5.5 support
Microsoft Windows®  Server 2008 with HyperV
Novell SUSE Linux Enterprise Server 11
Novell®  SUSE®  Linux Enterprise Server 10 SP2
Novell®  SUSE®  Linux 10 SP2
Red Hat®  Linux®  Enterprise v5.3
Red Hat® Linux Enterprise v5
Red Hat® Linux Enterprise 4.0
Red Hat® Linux Enterprise 4.0 64-bit edition
Red Hat®  Linux®  Enterprise v5.2, ES and ES x86
Red Hat®  Linux®  Enterprise v5.2, ES
ES x86-64
 Storage 
Hard Drives:
500GB, 750GB2 and 1.0TB2 7.2K nearline SAS Hard Disk Drives
300GB2 and 400GB2 10K SAS Hard Disk Drives
36GB2 , 73GB2 , 146GB2 and 300GB2 15K SAS Hard Disk Drives
80GB2 , 160GB2 , 250GB2 , 500GB2 , 750GB2 and 1.0TB2 7.2K SATA Hard Disk Drives

Maximum Internal Storage:
4.0TB2 (4 x 1TB) SAS
4.0TB2 (4 x 1TB) SATA

Direct Attach Storage Options:
PowerVault MD1000 SAS external storage system

External Backup Options:
Dell PowerVault and Dell EMC Storage Solutions
 
  Drive Bays 
4 x 3.5" cabled or hot-plug SAS or SATA hard-drives
2 x 5.25" for optional Optical Disk and Tape Backup
VisionCore Tape Backup Software
 
  I/O 
5 total I/O slots
2 64-bit/133MHz PCI-X
1 x1 PCI Express, 1 x8 PCI Express, 1 32-bit/33MHz 5v legacy slot
All slots are full-height, full-length
 
  Drive Controllers 
Embedded SATA, Optional SAS
 
  RAID Controllers  Learn More
 
PERC 5/i
PERC 5/e
PERC 6/e
PERC 6i
SAS 5/iR
SAS 6/iR
 
  Communications
Recommended Deployment 
The PowerEdge 840 is appropriate for the following applications:
File/print server
Standalone Local Area Network (LAN) infrastructure (Domain Controller/Directory Services, DNS, DHCP, WINS)
 
  Chassis 
Form Factor: Tower
Height: 17.28" (43.89 cm)
Width: 7.80" (19.81 cm)
Depth: 19.68" (49.99 cm)
Weight: ~ 42.0 lbs. (19.05kg) - fully loaded
 
  Ports 
Rear: 2 x USB 2.0, 1 x serial connector, 1 x video connector, 1x RJ45 (Gigabit Ethernet) connector, 2x PS2 connectors
Front: 2 x USB 2.0
BCM 5709 GbE Duel Port -TOE IPV6
BCM 5709 GbE Duel Port -TOE IPV6 iSCSI Boot, with iSCSI Offload
 
  Power 
Single power supply (420W)
 
  Graphics 
Integrated ATI ES1000 controller with 16MB of SDRAM
 
  Management 
Dell Server Assistant CD included
Dell OpenManageTM  5.5 Software included
Optional DRAC 4p PCI card for remote management, including dead server management
 
  Environmental 
Operating Temperature: 10° to 35°C (50° to 95°F)
Operating Relative Humidity: 20% to 80% (noncondensing) with a maximum humidity gradation of 10% per hour
Operating Maximum Vibration: 0.25 G's 0-Peak, 3-200 HZ sweep @ 1/2 Octaves/minute
Operating Maximum Shock: 31G, 2.6ms, 20inch/sec, bottom side
Operating Altitude: -16 to 3048 m (-50 to 10,000 ft.)
Storage Temperature: -40° to 65°C (-40° to 149°F)
Storage Relative Humidity: 5% to 95% (noncondensing)
Storage Maximum Vibration: 1.54 GRMS - 6 sides @ 15 min/side
Storage Maximum Shock: 71G, 2ms, 35inch/sec, 6 sides; 32G, 2ms, 270inch/sec, 6 sides
Storage Altitude: -16 to 10,600 m (-50 to 35,000 ft.)
 
  Regulatory & Safety 
Regulatory Datasheet & Safety