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Lenovo H520e Desktop User Manual Page 96
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Table of contents
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Lenovo
H520e
Har
dware
Maint
enance
Manual
1
2
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MachineTypes:90AM
1
FirstEdition(January2013)
2
Contents
3
Chapter10.FRUlists.........93
4
Chapter11.Additionalservice
4
AppendixA.Notices.........101
4
Index.................103
4
Chapter1.Aboutthismanual
5
Chapter2.Safetyinformation
7
Voltage-selectionswitch
9
Safetyinspectionguide
9
Groundingrequirements
10
Chapter2.Safetyinformation7
11
.Safetyinformation9
13
Chapter2.Safetyinformation11
15
.Safetyinformation13
17
.Safetyinformation15
19
Chapter2.Safetyinformation17
21
≥18kg≥32kg≥55kg
23
.Safetyinformation21
25
Chapter2.Safetyinformation25
29
Chapter3.Generalinformation
33
LenovoSupportWebsite
34
Chapter4.Generalcheckout
35
Basictroubleshooting
37
Troubleshootingprocedure
38
Troubleshooting
39
Audioproblems
39
NoaudioinWindows
40
CDproblems
41
DVDproblems
42
Intermittentproblems
43
Harddiskdriveproblems
43
Monitorproblems
46
Networkingproblems
47
AwirelessLANproblem
49
AwirelessWANproblem
49
Optionproblems
50
Performanceandlockupproblems
51
Printerproblems
53
Serialportproblems
53
Softwareproblems
54
USBproblems
55
Diagnostics
55
LenovoSolutionCenter
55
Viewingandchangingsettings
57
Usingpasswords
57
Passwordconsiderations
58
Power-OnPassword
58
AdministratorPassword
58
HardDiskPassword
58
Enablingordisablingadevice
59
Selectingastartupdevice
59
EnablingErPcompliancemode
60
ExitingtheSetupUtilityprogram
61
Chapter7.Symptom-to-FRUindex
63
POSTerrorcodes
64
.Symptom-to-FRUindex61
65
Miscellaneouserrormessages
66
Undeterminedproblems
67
Chapter8.Locations
69
LocatingmajorFRUsandCRUs
70
Locatingpartsonthesystemboard
71
Locatinginternaldrives
71
Figure5.Drivebaylocations
72
Chapter9.ReplacingFRUs
73
Removingthecomputercover
74
Attention:
75
Figure7.Removingthefrontbezel
75
InstallingorreplacingaPCIcard
76
.ReplacingFRUs73
77
Figure10.RemovingaPCIcard
78
Replacingthebattery
79
.ReplacingFRUs77
81
Replacingtheopticaldrive
82
.ReplacingFRUs79
83
Chapter9.ReplacingFRUs81
85
Replacingthemicroprocessor
87
2onthemicroprocessor
88
Replacingthesystemboard
89
Completingthepartsreplacement
94
Chapter9.ReplacingFRUs91
95
Chapter10.FRUlists
97
.FRUlists95
99
©CopyrightLenovo2013
101
Powermanagement
104
AutomaticPower-onfeatures
104
AppendixA.Notices
105
Televisionoutputnotice
106
EuropeanconformanceCEmark
106
Trademarks
106
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