2
Hardware Installation
15
2.2 System Memory
The system board is equipped
with two 168-pin DIMM (Dual In-
line Memory Module) sockets that
suppor t unbuffered PC-100
SDRAM DIMM. PC SDRAM
(Synchronous Dynamic Random
Access Memor y) is a fast
memory interface technology that
uses the clock on the chip to
synchronize with the CPU clock
so that the timing of the memory
chips and the timing of the CPU
are synchronized. This saves time during transmission of data,
subsequently increasing system performance.
The onboard VGA shares 1MB of the system memory. This is fixed
regardless of the size of the system memory. Aside from the 1MB
shared memory, it also uses Dynamic Video Memory Technology
(DVMT). DVMT freely changes in size because graphics memory is
allocated from the system memory according to current needs.
Refer to chapter 1 for the type of memory supported by the
system board.
Display Cache
The system board is mounted with 2 SDRAMs that serve as 4MB
display cache. The presence of the display cache will provide better
system performance.
Warning:
Electrostatic discharge (ESD) can damage your system board,
processor, disk drives, add-in boards, and other components. Perform
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.
