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2-14
9020/9030/9040
Environmentalilnstallation/PM
512K Byte RAM Board Installation
1. (ALL)
TURN THE POWER OFF AND DISCONNECT THE POWER CORD.
2. (520)
Open the left door.
(530)
Remove the front panel.
(540)
Remove the front bottom panel.
3. (530/540
ONLY)
From the front of the computer, remove the Radio Frequency Interference (RFI) shield by
loosening the six thumbscrews.
4. (ALL)
Open processor stack door.
5. (ALL)
CAUTION
ELECTROSTATIC DISCHARGE DAMAGE CAN OCCUR IN THE
FOLLOWING STEPS. FOLLOW THE PRECAUTIONS IN CHAPTER
4 OF THE SERVICE MANUAL.
DO NOT TOUCH EDGE CONNECTOR OR BOARD PLANE. HOLD
BOARD BY EJECTORS OR SIDE EDGES ONLY. HANDLING THE
RAM BOARD INCORRECTLY COULD CAUSE ELECTROSTATIC
DISCHARGE DAMAGE. WHEN INSTALLING THE RAM BOARD.
HOLD BY EJECTORS AND MOVE AIR CONTROLLER OUT OF
THE WAY WITH THE SIDE EDGE OF THE BOARD.
Remove the Load Board (09855-66525) from the Processor Stack. if it is present and at least
one RAM board is installed. The load board will no longer be required. It is the property of the
customer.
6. (ALL)
Install the new RAM board in the first unoccupied slot from the bottom. DO NOT LEAVE
EMPTY SLOTS BETWEEN BOARDS.
7. (ALL)
Close the processor stack door. Firmly tighten thumbscrews to prevent RFI radiation. Replace
the label that is used as a seal for the processor stack door (Part Number 5180-5201).
8. (530/540
ONLY)
Replace RFI shield.
9. (520)
Close left door.
(530)
Replace front panel.
(540)
Replace the front bottom panel.
10. (ALL)
Connect power cord to ac outlet.
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