Cpu Upgrade; Electrostatic Discharge; Anti-Static Wrist Strap - HP 9x9KS Series Upgrade Manual

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CPU Upgrade

The Central Processing Unit (CPU) upgrade for the HP 3000 and HP 9000 system is accomplished by
adding CPU cards to the existing CPU card slots within the computer cabinet. The number of CPUs
supported on each system model is as follows:.
Models
CPUs Supported
NOTE
CPUs for HP 9000/K100 models are an integral part of the system board. There is
no CPU upgrade for these models.
929KS/020, 939KS, and 939KS/020 models support a single processor only.

Electrostatic Discharge

CPU cards and computer systems contain assemblies and components that are sensitive to electrostatic
discharge (ESD). Carefully observe the precautions listed in this section and use the ESD wrist strap,
ESD sheet, and ESD foam pad provided in the ESD kit (part number A3024-80004).
The following precautions can significantly reduce the risk of system failure or component damage due
to ESD.
• Always wear an anti-static wrist strap when working around a system or handling the CPU card.
• Treat all assemblies, components, cards, and connections as sensitive.
• When unpacking cards or components to the system, keep the item in it's conductive bag until it is
ready to be installed.
• Keep body movement to a minimum, this generates static electricity that causes ESD.
• Avoid working in carpeted areas.
• Try to select a work area where potential static sources are minimized.

Anti-Static Wrist Strap

The anti-static wrist strap is a bracelet-like strap that goes around either wrist. The other end of the strap
connects to a convenient metal surface on the computer cabinet.
HP3000/
HP3000/
9x9KS HP9000/
(except 989KS
989KS)
1 to 4 1 to 6
HP9000/ HP9000/
K2x0 K360/K4x0 K370/380
1 to 4 1 to 4
CPU Upgrade
Electrostatic Discharge
HP9000/
K570/580
1 to 6 1 to 6
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