LH500 is a 64-bit/32-bit (Intel® EM64T) operating system compatible server motherboard designed specifically for the Intel® Xeon family of processors. It supports all Xeon processors current and forthcoming, with Front Side Bus that blazes at the speed of 800MHz and with DDR333 memory bus.

LH500 runs state of the art E7520 chipsets that provide seamless integration with Intel® Xeon processors running at 800MHz and enhanced memory bus that outputs at faster rate than ever before. LH500 supports up to 12 GB DDR 333 registered memory using dual channel memory bus in the space of 6 184-pin DIMM slots that achieves a fine balance of spacing saving and memory power.

LH500 is designed with a far outlook that anticipates the growing use of Serial ATA 2 drives. It uses an innovative design to support up to 8 SATA-2 ports, a feature not found in any other motherboards, providing the coveted hot plug feature and yet stays backward compatible with SATA-1.

LH500 supports 2 Gigabit Ethernet ports to provide for teaming with load balancing and fail over, making it the ideal motherboard for a firewall system or any system that operates in a highly dynamic and highly available computing environment.

LH500 comes with various combinations of manufacturing options that allow it to fit 1U, 2U and Pedestal. This flexibility also eliminates the hassles of testing a number of boards for qualification. All these benefits come at only a tiny to zero cost to the customer.

Other features that make LH500 a most effective choice included : 5 independent PCI-X/PCI buses, Five 64-bit 133/100/66MHz (3.3V) PCI-X slots, One PCI Express x8 and x4 slots, PXE option ROM solution, National Semiconductor Super I/O PC87360 chip, and Baseboard Management Controller (BMC) system management solution.

Product Skus


Serial ATA 2

PCI-X/PCI slot












64-bit 133MHz  PCI-X slot, one 32-bit 33MHz PCI slot)





  • Dual Intel® Xeon CPUs (Nocona)
  • Compliant VRM 10.1
  • 800MHz Front Side Bus


  • Intel® E7520 + ICH5 + PXH * 2 + FWH
  • National Semiconductor Super I/O PC87360 chip
  • Analog Devices ADM1026 Hardware Monitor chip

Main Memory

  • Six 184-pin 2.5-Volt DDR DIMM sockets
  • Dual channel memory bus
  • Two-way interleaved memory banks (pair of DIMMs required)
  • Supports DDR-333/266 memory
  • Supports Registered ECC type memory modules only
  • Supports up to 12GB
  • Supports Mirroring, Sparing and Chipkill

System BIOS

  • 8Mb Phoenix BIOS
  • Legacy USB support
  • MP 1.1 & 1.4 compliant
  • SMBIOS 2.3.3
  • DMI 2.0 compliant
  • Soft Power-down
  • Multiple boot support (with BIOS Boot Specification v3.1 (BBS) support)

Mass Storage I/O

  • Provides two PCI bus master channels for up to four enhanced IDE devices

  • Support for UDMA 100/66/33 IDE drives and ATAPI compliant devices

  • Integrated 2 ports Serial ATA from Intel ICH5

PCI Slots
  • One PCI-Express X8 slot

  • One PCI-Express X4 (share slot)

  • Three 64-bit 133/100/66MHz (3.3V) PCI-X slots

  • Two 64-bit 100/66MHz (3.3V) PCI-X slots

  • One 32-bit 33MHz (5V) PCI slot

  • Total of seven usable slots


  • Integrated ATI RageXL video controller with 8MB memory

Integrated Serial ATA 2

  • 4/8 Ports PCI-X Marvell/Adaptec Hercules2 SATA-2 Controller  [optional]
  • Zero Channel RAID (ZCR) solution (Intel RAIDIOS logic over PCI-X slot)
  • Hard disk hot swap solution
  • Adaptec Host-RAID option ROM and driver solution
  • DMA Transfers up to 3.0Gb/s

Integrated LAN controller

  • Intel 82546GB Gigabit Ethernet LAN controller
  • Two RJ-45 connectors with LEDs
  • Two 4-pin headers for front panel LED output

Onboard Multi I/O

  • National Semiconductor Super I/O PC87360 chip
  • One floppy connector
  • PS/2 mouse and PS/2 keyboard connectors
  • Two 9-pin serial ports (one rear  and one header)
  • Four USB 2.0 ports (2 rear and 2 headers)

System Management

  • Baseboard Management Controller (BMC) system management solution
  • IPMI 1.5 compliance with Arima Scorpio server management card (optional)

M/B Size

  • SSI form factor with size: 12ā€¯ X 13ā€¯ (8 layers)
  • EPS 12V power connectors (24pin + 8pin)


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