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Microprocessor
One or two Intel
®
Xeon
®
microprocessors (internal cache size varies by model)
For a list of the ThinkServer microprocessor options, go to:
http://www.lenovo.com/thinkserver
Memory
Your server has 20 memory slots. For more information, see “Memory module installation rules” on page 75.
Power supply
One or two 800-watt hot-swap redundant power supplies (Universal input and compliant with 80 PLUS Gold)
System fans
Your server comes with eight system fans to provide proper system cooling and airow.
Internal drives
Internal drives are devices that your server uses to read and store data. The internal drives supported
by your server vary by model.
• Hard disk drive
– Up to four 3.5-inch hot-swap Serial Advanced Technology Attachment (SATA) hard disk drives, Serial
Attached SCSI (SAS) hard disk drives (SCSI is the acronym for Small Computer System Interface), or
solid-state drives
– Up to eight 2.5-inch hot-swap SATA hard disk drives, SAS hard disk drives, or solid-state drives
• Optical drive
– One slim SATA optical drive in some models
For the location information about the internal drives or drive bays, see “Server components” on page 25.
Expansion slots
• Two riser card assembly slots on the system board
• One PCI Express card slot on the riser card assembly 1
• One PCI Express card slot on the riser card assembly 2
For detailed information, see “Rear view of the server” on page 22
.
Input/Output (I/O) features
• One or two video graphics array (VGA) DB-15 connectors
• One serial connector on the rear panel
• Six USB 2.0 connectors (two on the front panel and four on the rear panel)
• Three RJ-45 Ethernet connectors on the rear panel
For the location information about the connectors, refer to the related topics in “Locations” on page 13
.
8 ThinkServer RD540 User Guide and Hardware Maintenance Manual