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Lenovo H520g Lenovo H520g Hardware Maintenance Manual - Page 101

Video Adapter, Keyboard, Mouse, Power Cord, Power Supply, Thermal, Speaker, Card Reader, Mechanicals

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Video Adapter HD7450 1G 64bit DVI+DP WIN8 ATX VIDEO CARD DVI_I(M)-VGA(F) adpater HD7350 512M 64bit DVI+DP WIN8 ATX VIDEO CARD DVI_I(M)-VGA(F) adpater MSI G605 512M DVI+DP WIN8 ATX Video Card DVI_I(M)-VGA(F) adpater Keyboard Lenovo Slim New F5 USB Keyboard-WIN8 Lenovo Slim New F5 USB Keyboard-WIN8 Mouse Lenovo Enhanced Optical USB Mouse Lenovo Enhanced Optical USB Mouse Power Cord C13 Power Cord C13 Power Cord C13 Power Cord Power Supply Tower PS3 180W for WW, except for Japan Tower PS3 181W for WW, except for Japan Tower PS3 182W for WW, except for Japan Thermal Tower Intel LGA1155 95W/65W Cooler Kit Tower Intel LGA1155 95W/65W Cooler Kit Tower Intel LGA1155 95W/65W Cooler Kit Sensor Cable(300mm) kit (with holder) Sensor Cable(300mm) kit (with holder) Speaker Lenovo speaker M0620 (Black) Card Reader FRU Single Slot SD FRU BLD single slot 400mm-h card reader Fru-Card reader kit Mechanicals FRU,Mechanical kit,Sumba/321ZT, Foxconn FRU,TWR Front panel Ass'y for brazil,Sumba FRU,TWR Chassis Ass'y for brazil,Sumba FRU,Rear IO Shield,ATX,H61(Without PS2),FOF,Punch FRU,USB-ASSY,for brazil,Taipai IVY 20L FRU,Card reader bracket,Metal,Taipai IVY 20L 03T7091 1 54Y8255 1 03T7093 1 54Y8255 1 03T7096 1 54Y8255 1 54Y9494 1 54Y9494 1 45J4889 1 45J4889 1 45J9595 1 45J9595 1 45J9595 1 54Y8847 2 54Y8847 2 54Y8847 2 03T9513 N 03T9513 N 03T9513 N 54Y9919 N 54Y9919 N 03T7142 1 03T7044 1 03T9004 1 03T9516 1 03T9955 N 03T9956 1 03T9957 N 03T9631 N 03T9958 N 03T9959 N Chapter 10. FRU lists 97

Section	Page
Chapter 1. About this manual	5
Important safety information	5
Chapter 2. Safety information	7
General safety	7
Electrical safety	7
Voltage-selection switch	9
Safety inspection guide	9
Handling electrostatic discharge-sensitive devices	10
Grounding requirements	10
Safety notices (multi-lingual translations)	10
Chapter 3. General information	33
Specifications	33
Lenovo Support Web site	34
Chapter 4. General checkout	35
Problem determination tips	35
Chapter 5. Troubleshooting and diagnostics	37
Basic troubleshooting	37
Accessing Control Panel on the Windows 8 operating system	38
Troubleshooting procedure	38
Troubleshooting	39
Audio problems	39
CD problems	41
DVD problems	42
Intermittent problems	43
Hard disk drive problems	43
Keyboard, mouse, or pointing device problems	44
Monitor problems	46
Networking problems	47
Option problems	50
Performance and lockup problems	51
Printer problems	53
Serial port problems	53
Software problems	54
USB problems	55
Diagnostics	55
Lenovo Solution Center	55
Chapter 6. Using the Setup Utility program	57
Starting the Setup Utility program	57
Viewing and changing settings	57
Using passwords	57
Password considerations	58
Power-On Password	58
Administrator Password	58
Hard Disk Password	58
Setting, changing, and deleting a password	58
Erasing lost or forgotten passwords (clearing CMOS)	59
Enabling or disabling a device	59
Selecting a startup device	59
Selecting a temporary startup device	59
Selecting or changing the startup device sequence	60
Enabling ErP compliance mode	60
Changing the BIOS settings before installing a new operating system	61
Exiting the Setup Utility program	61
Chapter 7. Symptom-to-FRU index	63
Hard disk drive boot error	63
Power supply problems	63
Beep symptoms	63
POST error codes	64
Miscellaneous error messages	66
Undetermined problems	67
Chapter 8. Locations	69
Locations	69
Locating connectors, controls, and indicators on the front of your computer	69
Locating connectors on the rear of your computer	70
Locating major FRUs and CRUs	70
Locating parts on the system board	72
Locating internal drives	73
Chapter 9. Replacing FRUs	75
Handling static-sensitive devices	75
Installing or replacing hardware	75
Removing the computer cover	76
Removing and reinstalling the front bezel	77
Installing or replacing a PCI card	78
Replacing the battery	81
Installing or replacing a memory module	82
Replacing the optical drive	84
Replacing the heat sink and fan assembly	86
Replacing the power supply assembly	88
Replacing the microprocessor	89
Replacing the system board	92
Replacing the primary hard disk drive	94
Replacing the front audio and USB assembly	96
Completing the parts replacement	97
Chapter 10. FRU lists	99
Chapter 11. Additional service information	103
Security features	103
Hardware-controlled passwords	103
Operating system password	103
Vital Product Data	103
BIOS levels	103
Flash update procedures	103
Updating (flashing) the BIOS from a disc	104
Updating (flashing) the BIOS from your operating system	105
Recovering from a POST and BIOS update failure	105
Power management	106
Advanced Configuration and Power Interface (ACPI) BIOS	106
Automatic Power-on features	106
Appendix A. Notices	107
Television output notice	108
European conformance CE mark	108
Trademarks	108