User`s manual

2
16
Hardware Installation
2.2 System Memory
Warning:
• To ensure proper boot up and operation of your system, you must
power-off the system then turn off the power supply’s switch or
unplug the AC power cord prior to altering the setting of a jumper
or replacing the CPU.
• Electrostatic discharge (ESD) can damage your system board,
processor, disk drives, add-in boards, and other components. Per-
form the upgrade instruction procedures described at an ESD
workstation only. If such a station is not available, you can provide
some ESD protection by wearing an antistatic wrist strap and
attaching it to a metal part of the system chassis. If a wrist strap
is unavailable, establish and maintain contact with the system
chassis throughout any procedures requiring ESD protection.
The system board is equipped with two 184-pin DDR SDRAM
DIMM (Dual In-line Memory Module) sockets that support 2.5V
DDR SDRAM DIMM. Double Data Rate SDRAM (DDR SDRAM) is
a type of SDRAM that doubles the data rate through reading and
writing at both the rising and falling edge of each clock. This effec-
tively doubles the speed of operation therefore providing two times
faster data transfer.
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1
2
7
8
2
9
10
1
1
2
9
10
DDR 1
DDR 2