ProLiant DL360 Server Technology

T
ECHNOLOGY
B
RIEF
(cont.) Compaq ProLiant DL 360 Server Technology
4
TC000601TB
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1U Geometry
Three initial design goals of the ProLiant DL360 server controlled the server geometry:
• The height of the server was to be 1U (1.65 inches, or 4.19 centimeters).
• The server had to accommodate all components needed to provide all functionality required by
the target customers.
• The chassis and component design had to permit easy installation and removal of key
components such as processors, DIMMs, PCI cards, and hard drives.
The ProLiant DL360 server fits into standard racks with ample space for air intake and exhaust.
The interior chassis layout accommodates two processors, four DIMMs, and two standard-length
PCI cards across the width of the server in the rear and two hot-plug hard drives, a floppy drive,
and a CD-ROM drive across the front of the server (Figure 1). Components were designed and
positioned in the chassis for efficient space utilization and air-flow control, as well as for the
required functionality.
Processors
Fan
SCSI
Backplane
Hard
Drives
CC-ROM/Floppy
Assembly
DIMM Slots
PC Riser Board
Assembly
Fans
Power
Supply
CD-ROM/Floppy
Backplane
Power Switch/LED
Assembly
Figure 1. Interior layout of ProLiant DL360 server
Selecting a processor with a Flip Chip Pin Grid Array (FC-PGA) package rather than a larger,
cartridge package made space for two processors in the 1U chassis. Compaq simplified insertion of
DIMMs in the tight space by using angled DIMM slots and designing processor heat fins of
graduated height. Another unique feature of the ProLiant DL360 server is the PCI riser board
assembly. This lightweight, yet rigid metal frame connects directly to the system board and
contains edge connectors for two standard-length PCI cards. The assembly lifts out easily for
inserting or removing PCI cards and snaps securely back into place when the latch is closed.
For the low-profile CD-ROM/floppy drive module in the ProLiant DL360 server, Compaq used
small form-factor products initially developed for Compaq portable computers. An ejector slot on
the front of the ProLiant DL360 server makes it simple to remove the module for maintenance or
security. For customers who do not need floppy drives and CD-ROM drives, the ProLiant DL360
server comes with a bezel blank to cover the CD-ROM/floppy drive bay. If drives are not installed
in the bay, it must be covered to maintain thermal integrity while the server is operating.
DIMM: dual inline
memory module
PCI: peripheral
component interface
PCI riser board assembly