IBM JAGUAR V 386 System Manual page 4

1. Electronic components are sensitive to dust and dirt. Do
inspect and clean the computer system regularly.
2. Turn off the power whenever you install or remove any
connector, memory module and add-on card. Before turning on the
power, make sure that all the connectors, memory modules and add-on
cards are secured.
3. After power is on, please wait for a minute. The system BIOS
are going through a self-test during this period and nothing is shown on
the screen. After the self-test, the system BIOS will initialize the display
adaptor and show messages.
4. The SIMM sockets are fragile device. Do not force the SIMM
modules into the sockets. It may break the locking latches.
Note