Lenovo Netvista A20i Hardware Maintenance Manual (HMM) for Aptiva and NetVista - Page 65

Error Symptoms, Action/FRU, Processor, System Board, Diskette Drive

Get Lenovo Netvista A20i PDF manuals and user guides View all Lenovo Netvista A20i manuals
Add to My Manuals
Save this manual to your list of manuals

Page 65 highlights

Table 2-3 Error Symptoms List Error Symptoms Action/FRU NOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/FRU listed in right column is the most likely cause. Processor NOTE: Normally, the processor fan should be operative, and the processor clock setting should be exactly set to match its speed requirement before diagnosing any processor problems. Processor fan does not run but Make sure that the system is not in power saving mode. See "Power Management Setup" power supply fan runs. on page 47. With the system power on, measure the voltage of processor fan connector FN. (See "Power Supply Cable Connector Specifications" on page 122 and refer to the "Connectors and Functions for the System Board of Machine Types 2255 and 2275" on page 121.) It's reading should be +12Vdc. Processor fan. System board. Processor test failed. Processor. System board. System Board NOTE: Ensure that the memory modules are installed properly and the contact lead is clean before diagnosing any system problems. Memory test failed. "Memory" on page 78 System board Incorrect memory size shown or Insert the memory modules in the DIMM sockets properly, and then reboot the system. repeated during POST. Memory module. See the "Step 005" of "Memory" on page 78 to replace memory module. System board. System works but fails to enter Load default settings. power saving mode when the "Power Management" is set to In Windows Millennium, check settings in Control Panel Power utility. [Enabled], and power saving Reload software from Recovery CD. timer set in BIOS has elapsed. System hangs before system boot. "Index of Symptoms, Messages, Error Codes, or Beeps" on page 60. "Undetermined Problems" on page 84. System hangs after system boot. Execute a system test ("Diagnostics/All Tests" in PC-Doctor diagnostics program) and set it to stop at "Halt on Error" to see the potential cause of the problem. "Undetermined Problems" on page 84. Blinking cursor only; system does not work. "Start" on page 55. Diskette/IDE drive connection/cables Diskette/IDE disk drives "Undetermined Problems" on page 84. System board Diskette Drive NOTE: Ensure that the diskette drive is configured correctly in BIOS Setup and its read/write head is clean before diagnosing any diskette drive problems. 65

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
65
Table 2-3
Error Symptoms List
Error Symptoms
Action/FRU
NOTE:
To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the
FRU indicated in the check procedure. If no check procedure is indicated, the first Action/FRU listed in right column is the
most likely cause.
Processor
NOTE:
Normally, the processor fan should be operative, and the processor clock setting should be exactly set to match its
speed requirement before diagnosing any processor problems.
Processor fan does not run but
power supply fan runs.
Make sure that the system is not in power saving mode. See “Power Management Setup”
on page 47.
With the system power on, measure the voltage of processor fan connector FN. (See
“Power Supply Cable Connector Specifications” on page 122 and refer to the
“
Connectors and Functions for the System Board of Machine Types 2255 and
2275
” on page 121.) It’s reading should be +12Vdc.
Processor fan.
System board.
Processor test failed.
Processor.
System board.
System Board
NOTE:
Ensure that the memory modules are installed properly and the contact lead is clean before diagnosing any
system problems.
Memory test failed.
“Memory” on page 78
System board
Incorrect memory size shown or
repeated during POST.
Insert the memory modules in the DIMM sockets properly, and then reboot the system.
Memory module. See the “Step 005” of
“Memory” on page 78 to replace memory module.
System board.
System works but fails to enter
power saving mode when the
“Power Management” is set to
[Enabled], and power saving
timer set in BIOS has elapsed.
Load default settings.
In Windows Millennium, check settings in Control Panel Power utility.
Reload software from Recovery CD.
System hangs before system
boot.
“Index of Symptoms, Messages, Error Codes, or Beeps” on page 60.
“Undetermined Problems” on page 84.
System hangs after system boot. Execute a system test (“Diagnostics/All Tests” in PC-Doctor diagnostics program) and set
it to stop at “Halt on Error” to see the potential cause of the problem.
“Undetermined Problems” on page 84.
Blinking cursor only; system
does not work.
"Start" on page 55.
Diskette/IDE drive connection/cables
Diskette/IDE disk drives
“Undetermined Problems” on page 84.
System board
Diskette Drive
NOTE:
Ensure that the diskette drive is configured correctly in BIOS Setup and its read/write head is clean before
diagnosing any diskette drive problems.