Component Replacement Guidelines; Battery; Cable Management - HP Z228 Maintenance And Service Manual

Component replacement guidelines

This section provides information and guidelines for removal and replacement procedures. It does not
document the step-by-step procedures.
IMPORTANT:
Go to the HP Customer Self Repair Services Media Library at http://www.hp.com/go/sml. In Media Selection,
choose the Desktops & Workstations product category and the Personal Workstations product family, then
choose your platform
This chapter provides guidelines for removal and replacement procedures.
Battery on page 40
Cable management on page 40
CPU (processor) and CPU heatsink on page 42
Expansion slots on page 43
Hard drives and optical disc drives on page 45
Memory on page 46
Power supply specifications on page 48
System board on page 49

Battery

The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime
of about three years. Observe the following warning and caution when replacing the battery.
WARNING!
battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose of in
water or fire, or expose battery to temperatures higher than 60°C (140°F).
CAUTION:
removed. Use Computer Setup (f10) Utility to back up the settings.
NOTE: Do not dispose of batteries, battery packs, and accumulators with general household waste.

Cable management

Proper routing of the internal cables is critical to the operation of the workstation. Follow good cable
management practices when removing and installing components.
●
Handle cables with care to avoid damage.
●
Apply only the tension required to seat or unseat cables during insertion or removal from the connector.
●
When possible, handle cables by the connector or pull-strap.
●
Route cables in such a way that they cannot be caught or snagged by parts being removed or replaced.
●
Keep cables away from direct contact with major heat sources, such as the heatsink. (Some air flow
guides have a cable guide that lets you route cables safely around the heatsink.)
●
Do not jam cables on top of expansion cards or DIMMs. Circuit cards and DIMMs are not designed to take
excessive pressure.
40 Chapter 3 Component replacement information and guidelines
Removal and replacement procedures are now available in videos on the HP website.
HP Z Series Workstations use lithium batteries. There is a risk of fire and chemical burn if the
Before removing the battery, back up the CMOS settings in case they are lost when the battery is