notch in the SDRAM key position will tell you whether or not a DIMM is
unbuffered (see the Figure 2-5 below). All installed memory will be automati-
cally detected, so there is no need to set any jumpers.
Some details of memory installation:
! ! ! ! !
•
At least one unbuffered DIMM must be installed for the system to POST.
•
The mainboard supports 32MB, 64MB, 128MB SDRAM.
important!
•
PC-100 DIMM is required if CPU bus speed is at 100MHz
•
EDO, SDRAM, Parity, and ECC (using Parity memory) memory is sup-
ported.
•
SIMM modules must be installed in pairs, and both must be of the same
size and type.
•
The mainboard supports 4MB, 8MB, 16MB, 32MB, and 64MB SIMMs.
•
You can install either single- or double-sided SIMMs.
•
Two SIMMs or one unbuffered DIMM must be installed for the system to
S1590 Trinity 100AT
RFU
Unbuffered
Buffered
168-pin DIMM
Figure 2-5
19
Figure 2-4