Table of Contents
Advertisement
2.3 SIMM MEMORY Configuration
This motherboard supports the 72-Pin SIMM memory.
72-Pin
This type of SIMM is a 32-bit module. (sometimes referred to as "..x32" or "..x36"). There are various types
of this module available ranging from 1MB capacity up to 32MB. However it should be noted that different
types can be split up into two groups - namely "single bank" and "dual bank". The table below shows the
difference:
SIMM TYPE
256k x 32 (Non-
Parity)
256k x 36 (Parity)
512k x 32 (Non-
Parity)
512k x 36 (Parity)
1M x 32 (Non-
Parity)
1M x 36 (Parity)
2Mx 32 (Non-
Parity)
2M x 36 (Parity)
4M x 32 (Non-
Parity)
4M x 36 (Parity)
8M x 32 (Non-
Parity)
8M x 36 (Parity)
Since this motherboard supports the 586/Pentium processor, which has 64-bit architecture, you will require a
minimum of two pieces of SIMM (equal to 64-bit) in order to boot the system.
As such the four SIMM sockets of this motherboard can be looked upon as two separate 64-bit banks.
Although this motherboard can support both single-bank and double bank SIMM, it should be noted that you
cannot mix the two types within a 64-bit bank. Below is a diagram showing the correct and incorrect ways of
using single and dual banked SIMMs.
64 bit bank
64 bit bank
CAS Signals / bank
For 1 Pc SIMM
one - single bank
one - single bank
two - dual bank
two - dual bank
one - single bank
one - single bank
two - dual bank
two - dual bank
one - single bank
one - single bank
two - dual bank
two - dual bank
1M x 32/36 (Single Bank)
1M x 32/36 (Single Bank)
2M x 32/36 (Dual Bank)
2M x 32/36 (Dual Bank)
TOTAL MEMORY
For 1 Pc SIMM
1 MB
1 MB
2 MB
2 MB
4 MB
4 MB
8 MB
8 MB
16 MB
16 MB
32 MB
32 MB
Correct
16
Advertisement
Table of Contents
