Installing The Ram Board - HP 98568A Installation Instruction

Installing RAM in a Model 350
Installing the RAM Board
If you will be installing an expander, go ahead and do so, using the instructions
packaged with the expander.
If your computer contains a system bus, there are several configuration
restraints.
Both parity and
ECC
RAM are normally installed in the computer chassis,
since we strongly recommend that the RAM boards be connected to the
processor board by the system bus for maximum performance. However, both
RAM types may be installed in the expander if the resulting performance loss
is acceptable to you.
The 4 Mbyte parity RAM board may be installed in any slot. The other RAM
boards may be installed in any slot except for these:
• the top slot of either the computer or expander
• if your computer or expander contains DIO accessory slots (these are narrow
slots toward the top of the chassis), they can not go in the slot immediately
under the DIO slots.
Note
You may have to temporarily loosen or remove the board or
slot cover immediately above the empty slot in order to install
the new RAM board. Make sure to retighten this board after
installing the new board.
If your video output board consists of two printed circuit boards, it should go
in the expander.
The processor board, the RAM boards and the Floating-Point Accelerator (if
installed) should all be clustered together in the computer, in order to take
advantage of the faster speed of the system bus.
If your computer is full, a good general rule is to move the video board to the
expander.
Here is a step-by-step procedure for installing the new RAM board in your
computer:
1. Make sure that the computer and expander are turned off and the power
cords removed.
3-22 Adding RAM