Acer G520 series manual Appendix A Troubleshooting

Memory Configuration	88
Boot	90
Boot Settings Configuration	91
Boot Device Priority	92
Hard Disk Drives	94
Removable Devices	95
ATAPI CD/DVD Devices	96
Security	97
To set an Administrator/User password	99
To remove the User password	99
Server	100
System Management	102
Serial Console Features	103
Event Log Configuration	105
Exit	107
Upgrading the BIOS	109
Preparing for the Upgrade	109
Recording the Current BIOS Settings	109
Obtaining the Upgrade	109
Creating a Bootable Diskette	110
Creating the BIOS Upgrade Diskette	110
Upgrading the BIOS	110
Changing the BIOS Language	112
Recovering the BIOS	112
Manually Recovering the BIOS	112
Clearing the CMOS	113
Clearing the Password	114
BIOS Error Messages	115
BIOS POST Beep Codes	117
BIOS Recovery Beep Codes	￿￿￿
Configuration and BIOS Select Jumpers	119

Appendix A: Troubleshooting	121
Resetting the System	123
Problems following Initial System Installation	123
First Steps Checklist	123
Hardware Diagnostic Testing	124
Verifying Proper Operation of Key System Lights	125
Confirming Loading of the Operating System	125
Specific Problems and Corrective Actions	126
Power Light Does Not Light	126
No Characters Appear on Screen	127
Characters Are Distorted or Incorrect	128