User`s manual

FR550
3-9
Type Capacity Organization DIMM Clock Speed
168-pin 3.3V unbuffered
SDRAM DIMM with serial
presence detect
64MB 8Mx64 2MBx8
2banks
(DIMM1&2)
66.67Mhz
3.2.6 Installation Procedure for DIMM
Insert DIMM into the
DIMM sockets at a 90
degree angle.
1) Pin1 of the DIMM must match with pin 1 of the DIMM socket.
2) The module will only insert into the socket one way. An orientation cut-out will prevent
you from inserting it the wrong way.
3) Insert the DIMM into the DIMM socket at a 90 degree angle. If pin 1 of the DIMM does
not line up with pin 1 of the socket, the DIMM will not insert into the socket. After
inserting the DIMM completely into the socket, push up on the socket latches securing
the DIMM into place.
4) To release the memory modules, push both latches down and carefully rock the module
forward
Important: Do not use DIMM which use an extra TTL to convert the memory module from
asymmetric to symmetric.
3.3 Installation of the CPU
The FR550 comes with a 321-pin ZIF socket 7 for installing the CPU. The Socket 7 will also
support future Pentium up-grade processors. It is strongly recommended that a heatsink and
CPU cooling fan be used to prevent the CPU from overheating. (Tip) Applying a thermal jelly
between the CPU and the heatsink/fan will cool the CPU.
To install a CPU, remember to take the following precautions against static electric discharge.
The basic procedure is as follows:
NOTICE: When installing the CPU into the CPU socket, be sure that PIN 1 of the CPU is in
the same corner as PIN 1 of socket. The CPU is an extremely sensitive electrical component
and can be easily damaged by static electricity.