HP 621 Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 74

Palm rest, Shut down the computer. If you are unsure whether the computer is off or in Hibernation

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3. Lift the processor (2) straight up and remove it. NOTE: When you install the processor, the gold triangle (3) on the processor must be aligned with the triangle (4) embossed on the processor socket. Reverse this procedure to install the processor. Palm rest Description Palm rest for Compaq units with 39.6-cm (15.6-in) displays (includes TouchPad) Palm rest for Compaq brand units with 35.6-cm (14-in) displays (includes TouchPad) Palm rest for Compaq brand units with 33.8-cm (13.3-in) displays (includes TouchPad) Palm rest for HP brand units with 39.6-cm (15.6-in) displays (includes TouchPad) Palm rest for HP brand units with 35.6-cm (14-in) displays (includes TouchPad) Spare part number 605783-001 605781-001 605779-001 605782-001 605780-001 Before removing the palm rest, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 64 Chapter 4 Removal and replacement procedures

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3.
Lift the processor
(2)
straight up and remove it.
NOTE:
When you install the processor, the gold triangle
(3)
on the processor must be aligned
with the triangle
(4)
embossed on the processor socket.
Reverse this procedure to install the processor.
Palm rest
Description
Spare part number
Palm rest for Compaq units with
39.6-cm
(15.6-in) displays (includes TouchPad)
605783-001
Palm rest for Compaq brand units with
35.6-cm
(14-in) displays (includes TouchPad)
605781-001
Palm rest for Compaq brand units with
33.8-cm
(13.3-in) displays (includes TouchPad)
605779-001
Palm rest for HP brand units with
39.6-cm
(15.6-in) displays (includes TouchPad)
605782-001
Palm rest for HP brand units with
35.6-cm
(14-in) displays (includes TouchPad)
605780-001
Before removing the palm rest, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
64
Chapter 4
Removal and replacement procedures