American Megatrends Apollo IV User Manual page 26

Step 4 Install Memory,
Installing SIMMs The motherboard has four x 36 SIMM sockets. These sockets can be filled
with either 1 MB x 36, 4 MB x 36, 8 MB x 36, or 16 MB x 36 SIMMs.
Place the motherboard on an anti-static mat. With the component side of the
SIMM facing you, firmly push the SIMM into the socket at an angle, then
push it up. When properly inserted, the SIMM clicks into place as the
latching pins engage.
Memory Display System memory is reported by AMIBIOS as it boots and again when
the AMIBIOS System Configuration Screen is displayed just before the
operating system boots. The memory displayed by AMIBIOS on the System
Configuration Screen is 384 KB less than the total memory installed.
22 Apollo IV PCI Pentium ISA Motherboard User's Guide
Continued