User`s manual

FR550
3-6
AMD-K6 Settings JP2 JP3 JP6
PR2-166
(66MHz x 2.5)
PR2-200
(66MHz x 3)
PR2-233
(66MHz x 3.5)
3.1.7 Clear CMOS (JP8)
The FR550 has a Jumper JP8, which allows you to clear the CMOS memory, the CMOS
memory maintains the system configuration information. Make sure this jumper is open for
normal operation.
3.2 Installation of DRAM modules (SIMM or DIMM)
3.2.1 SIMM (Single Inline Memory Module)
You can configure the system memory size in a variety of ways by using different
combinations of the four 72-pin DRAM SIMM. The memory must be 70ns (nanoseconds) or
faster using either Fast Page Mode or Extended Data Output (EDO) types. The memory table
below shows the different memory size combinations available. Please pay attention to the
following restrictions :
1) You must use one pair of sockets at a time in sequence ( i.e. SIMM1 and SIMM2, or all
four sockets at once).
2) Each pair of modules must be the same size and speed and may be single sided or
double-side. Module sizes: Single-side SIMMs: 4MB, 8MB, 16MB; Double-side
SIMMs: 8MB, 32MB, 64MB
3.2.2 SIMM Combinations
Total Memory (Slot 1-4) Bank A (Slot 1 & 2) Bank B (Slot 3 & 4)
8MB 4MBx2 None
16MB 8MBx2 None
32MB 16MBx2 None
64MB 32MBx2 None
8MB None 4MBx2