User guide

PCL5100 features and upgrades
PCL5100 USER GUIDE 7
Adding more memory
You can give your PC more memory by adding or replacing
memory modules called “DIMMs”.
The motherboard’s two DIMM sockets accept DIMMs of up to
128 Mbytes in any combination (giving a maximum memory
capacity of 256 Mbytes).
IMPORTANT
The DIMMs you use must have the following specification: gold
contacts, 3.3V, 64-bit, unbuffered, either SDRAM-type with Serial
Presence Detect (SPD) and a CAS latency of 2 at 66 MHz or else
EDO-type with 60 ns timing. If you use any other type of DIMM you
risk damaging the motherboard.
Fitting and removing DIMMs
Before you begin
1. Turn off the computer and unplug all power cords.
2. Take suitable anti-static precautions and remove the system
covers. Take suitable antistatic precautions at all times while
the motherboard is exposed.
3. Remove any expansion cards that impede access to the DIMM
sockets.
To install a DIMM
1. Take the DIMM out of its anti-static packaging. Hold it by its
ends and avoid touching the metal contacts.
2. Align the DIMM with the chosen socket, ensuring that the
socket end clips are not obstructing.
◊ The indents along the connector edge are asymmetrical to
prevent the DIMM being fitted into the socket the wrong
way round.