Preliminary Requirements - HP 9000 300 Series Hardware Configuration Manual

Performing the RAM Upgrade
Caution
Caution
A static charge of almost 40,000 volts can be generated on a
carpeted floor. This exceeds the limits of these RAM boards
and can cause unsuccessful operation or damage.
Integrated circuits on printed circuit boards can be damaged by
electrostatic discharge. Use the following precautions:
• Use the grounding wrist strap supplied with the upgrade.
Follow the instructions printed on the strap's package.
• Do not wear
clot~i~g
subject to static charge buildup, such
as wool or synthetic materials.
• Do not handle integrated circuits in carpeted areas.
• Do not remove the device from its anti-static bag until you
are ready to install it.
• Avoid touching circuit leads as much as possible.
RAM boards must be removed from the highest-numbered slots
first. . .
Preliminary Requirements
Before you go inside the controller, refer to Chapter 1 and:
1. Shut down the application program and operating system.
2. Turn OFF the controller.
3. Remove all cables and· cords attached to the controller and attached
expander(s) .
4. If rack mounted, remove the controller and expanders, if attached, from the
rack.
5. Remove the controller's top cover.
Go on to the next page and begill.
MemoryConfigurations 5-3
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