HP OmniBook 800CCT Service Manual page 88

Under normal conditions, it is important not to disturb the wax residue on the Top Case and
CPU. If the Top Case is replaced, it will have a new Heat Transfer Disk already in place on the
Keyboard Support Plate. However, to ensure the integrity of the heat transfer, this Heat Transfer
Disk should be replaced with a new disk after installation of the new Top Case Assembly.
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