NEC MT2200, User Manual

Page: 109 / 192

5-19
Upgrades and Options
Removing DIMMs
Notice: Use extreme care when removing a DIMM. Hold
DIMMs only by their edges. Place them on an antiststic
surface; do not side them across any surface. Appying
too much pressure can break the retaining clips or
damage the socket slot. Apply only enough pressure on
the retaining clips to release the DIMM.
1. Power off the system and remove the side panel as
described earlier in this chapter.
2. Remove the DIMM modules one at a time starting
from the highest numbered sockets.
3. To remove each DIMM, gently spread the retaining
clips (Figure 5-7, C) just enough so that you can pull
the top edge of the DIMM (B) away from the clips.
4. Carefully lift the DIMM away from the socket and
store it in an antistatic package.
5. Repeat the above steps to remove the remaining
DIMMs.
6. Replace the side panel and turn on the system.
Option Boards
This section describes how to install and remove ISA
and PCI option boards. The system board has three
dedicated ISA bus expansion slots, two dedicated PCI
bus expansion slots, and one shared PCI/ISA bus
expansion slot (see Figure 5-8). You can install one ISA
board or one PCI board in the shared slot, not both.
The high-performance PCI local bus allows the adoption
of newer networking technology, such as ATM and 100
MB/second Ethernet NICs, with a minimum of effort
and without concern for I/O bottlenecks. The PCI local
bus offers up to 133 MB/second bandwidth.