2-18 General DescriptionSystem Board FeaturesThe following subsections describe the system board major components.ProcessorThe processor board accommodates one to four Intel Xeon processor MP with 512k/1MB cache inthe FC-PGA2 package.DIMM MemoryThe memory board contains twelve 168-pin DIMM slots each supporting 72-bit ECC (64-bit mainmemory plus ECC) registered PC-200 Double Data Rate (DDR) DIMMs. Memory is partitioned inthree 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 viaconfiguration registers.NOTE: Use DIMMs that have been provided by NEC. Contact yourservice representative or dealer for a current list of approved memorymodules.Onboard VideoThe baseboard incorporates an ATI RAGE XL PCI graphics accelerator with 4 MB of videoSDRAM that supports all standard IBM VGA modes. The embedded SVGA video subsystemsupports: Pixel resolutions up to 1024 × 768 CRT and LCD monitors up to 100 Hz vertical refresh rateThe baseboard supports disabling of the onboard video through BIOS Setup or when a plug-in videocard is installed in any of the PCI slots.
