Genuine Original Dell PowerEdge 840 Series Intel LGA775 Desktop Motherboard with Mounting Tray RH822 0RH822 CN-0RH822.

Dell Part Number: RH822 0RH822 CN-0RH822
Compatible Part Numbers: DA0S10MB6D2
Compatible Models: Dell PowerEdge 840 Series

Specifications:

Chipset:
Intel 3000
Processor socket:
LGA775
Compatible Processor:
Dual-Core Intel® Xeon® processor 3000 Sequence
Intel Pentium® processor
Intel Celeron® processor (processor is not included)
Compatible Memory:
512MB - 8GB DDR-2 533/667 ECC SDRAM (memory is not included)
Video:
Embedded ATI ES1000 with 16MB memory
Network Interface Cards:
Single embedded Broadcom Gigabit NIC
Front Side Bus or HyperTransport:
Up to 1066 MHz
I/O Slots:
Five total: two PCI Express™ slots (1x8 lane and 1x1 lane);
two PCI-X® slots (64-bit/133MHz, 3.3v); one PCI slot (32-bit/33MHz)
Drive Controller:
Embedded SATA