Table of Contents
Advertisement
9020/9030/9040 Environmental/Installation/PM 2-15
1 Megabyte RAM Board Installation
Instructions
Read the following information then follow the instructions that apply to the installation you are
performing. For example, if you are installing the RAM Boards in a 520 computer you would
perform all steps that begin with: (ALL), and (520).
RAM Boards
1 Megabyte RAM Boards can only be installed in pairs. Any combination of 256K, 512K, and pairs
of 1 Megabyte boards can be used.
Load Board
If a system is shipped with 1 CPU, 1 lOP, and one 512K RAM Board, it will also have a Load Board
(09855-66525) in the top occupied slot. When the 1 Megabyte RAM Boards are added to the
stack, the Load Board is no longer required and must be removed (assuming the 512K RAM board
remains in the system).
When the only RAM boards in the stack are 1 Megabyte RAM boards, a load board is required if
there are six or less. The load board should be removed when there are more than six 1 Megabyte
RAM boards in the stack, or if there is a mixture of 256K, 512K, and 1 Megabyte RAM boards in the
stack.
Any time the Processor Stack configuration is changed so that it contains one of the above
configurations, a Load Board is required. The load Board (09855-66525) is a replaceable part in
spares. If the load board is used it must be in the top OCCUPIED slot of the Processor Stack. Do
not leave any empty slots between finstates or boards.
Boot Loader ROM
When the Processor Stack contains 1 Megabyte RAM Boards, Boot Loader ROM Rev. B (09020-
80001) must be used, and UNIX 4.0 or Basic 2.0 software must be used.
Boot Loader ROM 09020-80000 can be used with UNIX 4.0 or Basic 2.0 (or any previous software
versions) as long as the stack DOES NOT contain a 1 Megabyte RAM Board.
Boot Loader ROM Rev. B (09020-80001) can be used with any RAM configuration but MUST use
UNIX 4.0 or BASIC 2.0 software (any earlier versions of software cannot be used with this boot
loader).
Access Times
When the 1 Megabyte RAM Boards are installed in a computer, the access times will be slower. The
customer may notice this slower process time during operation.
System Integrity Test
The previous SFT tests (Part Number 09020-lO010 Rev. 2.0) are not compatible with the Basic 2.0
Operating System. The updated version of the SFT must be used with this operating system.
The 4.0 HP-UX Operating System contains the same System Functional Tests (SFT) as the pre-
vious HP-UX. They are located in the CEo utilities dictionary.
Advertisement
Table of Contents
