HP zx6000 Processor Upgrade Instructions page 4

Read Safety Warnings
WARNING: To remove or replace a processor, you must:
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1. Power off the system.
2. Unplug the system power cord from the AC power outlet.
WARNING: Avoiding Electrical Shocks. To avoid electrical shock,
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do not open the power supplies. There are no user-serviceable parts
inside. To avoid electrical shock and harm to your eyes by laser light,
do not open the DVD laser module. The laser module should be
serviced by service personnel only. Do not attempt to make any
adjustment to the laser unit. Refer to the label on the DVD for power
requirements and wavelength. This product is a class I laser product.
WARNING: Removing and Replacing the Cover. For your safety,
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never remove the system side cover without first disconnecting the
power cord from the power outlet and removing any connection to a
telecommunications network. If a Power Protection Device is fitted to
your system, you must shut down your computer using its on/off
switch, then remove the power cord before removing the system's side
cover. Remove the Power Protection Device cables before any
servicing operation. Always replace the side cover before switching
the system on again.
WARNING: Avoiding Burn Injuries. Some parts inside the computer
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will be hot. Wait approximately three to five minutes for them to cool
down before touching them.
CAUTION: Avoiding Static Electricity. Static electricity can damage
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electronic components. Turn OFF all equipment before installing an
accessory card. Don't let your clothes touch any accessory card. To
equalize the static electricity when replacing an accessory card, rest
the accessory card bag on top of the system unit while you are
removing the card from the bag. Handle the card as little as possible
and with care.
CAUTION: To maintain FCC Electromagnetic Interference (EMI)
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compliance, verify that all covers are replaced and that all
screws are properly seated.
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CAUTION: DO NOT ATTEMPT TO DOWNGRADE FIRMWARE
AFTER UPDATING TO REVISION 2.01. DOWNGRADING
FIRMWARE COULD POTENTIALLY RENDER THE SYSTEM
INOPERABLE.