NEC Express5800/140Rc-4, User Manual

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2-18 General Description
System Board Features
The following subsections describe the system board major components.
Processor
The processor board accommodates one to four Intel Xeon processor MP with 512k/1MB cache in
the FC-PGA2 package.
DIMM Memory
The memory board contains twelve 168-pin DIMM slots each supporting 72-bit ECC (64-bit main
memory plus ECC) registered PC-200 Double Data Rate (DDR) DIMMs. Memory is partitioned in
three banks. You may install a minimum of 512 MB (128 MB × 4) or as much as 12 GB.
The controller automatically detects, sizes, and initializes the memory array, depending on the type,
size, and speed of the installed DIMMs, and reports memory size and allocation to the server via
configuration registers.
NOTE:
Use DIMMs that have been provided by NEC. Contact your
service representative or dealer for a current list of approved memory
modules.
Onboard Video
The baseboard incorporates an ATI RAGE XL PCI graphics accelerator with 4 MB of video
SDRAM that supports all standard IBM VGA modes. The embedded SVGA video subsystem
supports:
„
Pixel resolutions up to 1024 × 768
„
CRT and LCD monitors up to 100 Hz vertical refresh rate
The baseboard supports disabling of the onboard video through BIOS Setup or when a plug-in video
card is installed in any of the PCI slots.