User manual

PE2M Small Form Factor PC Upgrading the Hardware
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UPGRADING THE SYSTEM HARDWARE
Warning
Before attempting any upgrade to the PE2M computer, please read the section "Precautions".
For your personal safety it is important that you ensure that the unit is switched off, and the AC supply is
disconnected. Remember that switching the power off using the front panel switch does not isolate the AC
supply, and under these conditions the DC power is still connected to the motherboard.
For the safety of the equipment, it is important that you observe electrostatic discharge precautions. Do not
remove items from anti-static bags until necessary.
When making any internal changes to the computer, it is imperative that the internal cables follow the original
routes and additional cables are installed as described. Failure to observe this requirement could restrict the
airflow through the unit and cause overheating problems.
Upgrade Options
The user may upgrade the unit by adding more memory to the unit, or by adding a PCI expansion card. The
addition of removable-media drives (CD, DVD or Floppy) is a build option only.
Adding Memory
The PE2M motherboard incorporates two 168-pin DIMM sockets for memory. Each can accommodate a
module of 128, 256 or 512 MB of PC100 or PC133 compliant 3.3V SDRAM. This provides for up to 1 GB of
system memory. Note that whilst the memory modules need not be the same size, they should be of the same
speed (either PC100 or PC133). Generally the memory speed should match the Front Side Bus speed of the
processor. If in doubt, fit PC133 memory.
Installing additional memory involves removing the top cover and the hard drive assembly, plugging the
memory modules into the sockets, and finally reassembling the unit.
Remove the screws on the top surface of the cover and loosen the others, and then lift the cover off.
If the unit is fitted with a PCI expansion card, it must be removed (see the diagram following).
Insert a cross-point screwdriver through the access hole on the right end of the chassis to the expansion card
fixing screw, and remove the M3 screw.
Remove the board from the connector on the PCI Riser Card and lift it out.
Place it to one side in an anti-static bag or on a conductive surface.
The PCI Riser Card is fixed to the hard drive-mounting bracket by two black plastic expanding rivets. Fit a tool
under the head of the rivet and pull it out of the rivet body. It is not necessary to remove the Riser Card or the
rivet bodies.