Chapter 5.17 Memory Expansion - Compaq 486 Maintenance And Service Manual

To replace the keylock, reverse the steps in the above illustration.

Chapter 5.17 Memory Expansion

Some of the memory expansion alternatives for the COMPAQ PORTABLE 486c
Personal Computer are shown in Table 5-3.
combinations of 2, 4, and 8 megabytes for a total of 32 megabytes.
NOTE: Memory modules can be installed in any combination and in any available
slot. However, slot 1 must contain a memory module.
Table 5-3. Memory Expansion
COMPAQ PORTABLE 486c Personal Computer
=============================================================================
Memory Module(s) Added
Slot 1 to Slots 2, 3, or 4
-----------------------------------------------------------------------------
4 MB 2 MB
4 MB 2 MB
4 MB 4 MB
4 MB 2 MB
4 MB 2 MB
4 MB 2 MB
4 MB 4 MB
4 MB 8 MB
4 MB 2 MB
4 MB 2 MB
4 MB 2 MB
4 MB 4 MB
4 MB 4 MB
4 MB 2 MB
4 MB 4 MB
4 MB 8 MB
Memory modules can be added in
2 MB
2 MB 2 MB
2 MB
2 MB 2 MB
4 MB 2 MB
2 MB 4 MB
4 MB 2 MB
2 MB
4 MB 4 MB
8 MB 2 MB
2 MB 8 MB
4 MB 4 MB
8 MB 2 MB
4 MB 8 MB
4 MB 8 MB
8 MB 2 MB
Total
Memory
6 MB
8 MB
8 MB
10 MB
10 MB
12 MB
12 MB
12 MB
14 MB
14 MB
16 MB
16 MB
16 MB
18 MB
20 MB
20 MB