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Replacing the heat sink assembly

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To replace the microprocessor fan, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the cover is facing up. 3. Remove the computer cover. See "Removing the computer cover" on page 71. 4. Remove the VESA mount bracket. See "Removing and reinstalling the VESA mount bracket" on page 71. 5. Locate the microprocessor fan in the computer. See "Locating major FRUs and CRUs" on page 63. 6. Remove the microprocessor board shield. See "Removing and reinstalling the system board shield" on page 76. 7. Note the routing of the microprocessor fan cable, and then disconnect the microprocessor fan cable from the system board. See "Locating parts on the system board" on page 66. 8. Remove the two screws 1 that secure the microprocessor fan to the main bracket. Then, lift the microprocessor fan off the main bracket. Figure 19. Removing the microprocessor fan 9. To reinstall the microprocessor fan, position the new microprocessor fan on the main bracket and align the screw holes in the new microprocessor fan with those in the main bracket. Reinstall the two screws that secure the microprocessor fan to the main bracket. 10. Connect the new microprocessor fan cable to the system board. See "Locating parts on the system board" on page 66. 11. Reinstall the system board shield. See "Removing and reinstalling the system board shield" on page 76. 12. Go to "Completing the parts replacement" on page 96. Replacing the heat sink assembly Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the Safety, Warranty, and Setup Guide that came with your computer. To obtain a copy of the 78 Lenovo S710 All-In-OneHardware Maintenance Manual

Section	Page
Chapter 1. About this manual	7
Important Safety Information	7
Chapter 2. Safety information	9
General safety	9
Electrical safety	9
Safety inspection guide	11
Handling electrostatic discharge-sensitive devices	11
Grounding requirements	12
Safety notices (multi-lingual translations)	12
Chapter 3. General information	35
Specifications	35
Lenovo Support Web site	35
Chapter 4. General Checkout	37
Problem determination tips	37
Chapter 5. Troubleshooting and diagnostics	39
Basic troubleshooting	39
Accessing Control Panel on the Windows 8 operating system	40
Troubleshooting procedure	40
Troubleshooting	41
Audio problems	41
CD problems	43
DVD problems	44
Intermittent problems	45
Keyboard, mouse, or pointing device problems	45
Monitor problems	47
Networking problems	49
Option problems	51
Performance and lockup problems	52
Printer problems	54
Serial port problems	54
Software problems	55
USB problems	56
Chapter 6. Using the Setup Utility program	57
Starting the Setup Utility program	57
Viewing and changing settings	57
Using passwords	57
Password considerations	57
Power-On Password	58
Administrator Password	58
Setting, changing, and deleting a password	58
Enabling or disabling a device	58
Selecting a startup device	59
Selecting a temporary startup device	59
Selecting or changing the startup device sequence	59
Changing the BIOS settings before installing a new operating system	59
Exiting the Setup Utility program	60
Chapter 7. Symptom-to-FRU Index	61
Hard disk drive boot error	61
Power Supply Problems	61
Beep symptoms	61
POST error codes	62
Miscellaneous error conditions	63
Undetermined problems	65
Chapter 8. Locations	67
Locating connectors, controls, and indicators on the front of your computer	67
Locating connectors, controls, and indicators on the rear of your computer	68
Locating major FRUs and CRUs	69
Looking up FRU information	71
Locating parts on the system board	72
Chapter 9. Replacing FRUs	73
Removing and reinstalling the system stand hinge cover	73
Removing and reinstalling the system stand	74
Removing the computer cover	77
Removing and reinstalling the VESA mount bracket	77
Replacing the hard disk drive	78
Replacing the optical drive	80
Removing and reinstalling the system board shield	82
Replacing the microprocessor fan	83
Replacing the heat sink assembly	84
Replacing the microprocessor	86
Replacing the battery	89
Replacing the inverter	90
Installing or replacing a memory module	91
Replacing the internal speakers	93
Replacing the integrated camera	94
Replacing the system board	95
Replacing the LCD panel	97
Replacing the Wi-Fi card	100
Replacing the USB keyboard or mouse	102
Completing the parts replacement	102
Chapter 10. FRU lists-S710	105
Chapter 11. Additional Service Information	109
Security features	109
Hardware controlled Passwords	109
Operating system password	109
BIOS levels	109
Flash update procedures	109
Updating (flashing) the BIOS from a disc	109
Updating (flashing) the BIOS from your operating system	110
Recovering from a POST/BIOS update failure	111
Power management	111
Automatic configuration and power interface (ACPI) BIOS	112
Automatic Power-on features	112
Appendix A. Notices	113
Television output notice	114
European conformance CE mark	114
Trademarks	114

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To replace the microprocessor fan, do the following:

1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect

all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2. Place a soft, clean towel or cloth on the desk or other ﬂat surface. Hold the sides of your computer and

gently lay it down so that the screen is against the surface and the cover is facing up.

3. Remove the computer cover. See “Removing the computer cover” on page 71.

4. Remove the VESA mount bracket. See “Removing and reinstalling the VESA mount bracket” on page 71.

5. Locate the microprocessor fan in the computer. See “Locating major FRUs and CRUs” on page 63.

6. Remove the microprocessor board shield. See “Removing and reinstalling the system board shield”

on page 76.

7. Note the routing of the microprocessor fan cable, and then disconnect the microprocessor fan cable

from the system board. See “Locating parts on the system board” on page 66.

8. Remove the two screws

that secure the microprocessor fan to the main bracket. Then, lift the

microprocessor fan off the main bracket.

Figure 19. Removing the microprocessor fan

9. To reinstall the microprocessor fan, position the new microprocessor fan on the main bracket and align

the screw holes in the new microprocessor fan with those in the main bracket. Reinstall the two screws

that secure the microprocessor fan to the main bracket.

10. Connect the new microprocessor fan cable to the system board. See “Locating parts on the system

board” on page 66.

11. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 76.

12. Go to “Completing the parts replacement” on page 96.

Replacing the heat sink assembly

Attention

Do not open your computer or attempt any repair before reading and understanding the “Important safety

information” in the

Safety, Warranty, and Setup Guide

that came with your computer. To obtain a copy of the

Lenovo S710 All-In-OneHardware Maintenance Manual