Apple IMAC Service Source - Page 154

iMac USB 2.0 Troubleshooting, Whenever the bottom housing is opened for service, you must

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4. Connect the power cord and power up the system again. Warning: Whenever the bottom housing is opened for service, you must do two things: 1. You must clean and reapply thermal paste to the thermal pipe surface. 2. You must tighten the four torx bolts on the base unit to a minimum of 17 in.- lbs. Failure to follow either of these steps could cause the computer to overheat nd damage internal components. Refer to the next topic, "Thermal Paste Application" for detailed information. General Information iMac (USB 2.0) Troubleshooting - 9

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iMac (USB 2.0) Troubleshooting -
9
General Information
4.
Connect the power cord and power up the system again.
Warning:
Whenever the bottom housing is opened for service, you must
do two things:
1. You must clean and reapply thermal paste to the thermal pipe surface.
2. You must tighten the four torx bolts on the base unit to a minimum of 17 in.– lbs. Failure to follow
either of these steps could cause the computer to overheat nd damage internal components.
Refer to the next topic, “Thermal Paste Application” for detailed information.