Diagnosing Problems; Troubleshooting; Error Messages - Lenovo 3000 C100 0761 Supplementary Manual

Solving computer problems

Diagnosing problems

If you have a problem with your computer, you can test it by using
PC-Doctor
1. Click Start.
2. Move the pointer to All Programs and then to PC-Doctor for Windows.
3. Click PC-Doctor.
4. Choose one of the tests from either Device Categories or Test Scripts.
Attention
Running any tests may take up to several minutes or longer. Make sure
you have time to run the entire test; do not interrupt the test while it is
running.
The System Test of the Test Scripts runs some tests of critical hardware
components, but it does not run all of the diagnostic tests in PC-Doctor for
Windows. If PC-Doctor for Windows reports that all of the tests in the System
Test have been run and that it has found no problems, consider running more
of the tests in PC-Doctor for Windows.
If you are preparing to contact the Customer Support Center, be sure to print
the test log so that you can rapidly provide information to the help technician.

Troubleshooting

If you do not find your problem here, refer to Access Help, your on-board
help system. The following section only describes problems that might
prevent you from accessing this help system.

Error messages

Note: In the charts, x can be any character.
Beep code
short, short, short;
short, short, long
short, short, short;
short, long, short
short, short, short;
short, long, long
short, short, short;
long, short, short
10
Lenovo 3000 C100 Service and Troubleshooting Guide
®
for Windows. To run PC-Doctor for Windows, do as follows:
Message Description
FAULTY DMA The DMA page registers do not function properly.
PAGE REGISTERS
FAULTY REFRESH The RAM refresh circuit does not function properly.
CIRCUIT
ROM CHECKSUM The BIOS ROM checksum failed.
INCORRECT
CMOS RAM TEST The CMOS RAM test failed.
FAILED