Lenovo ThinkCentre A70 7099 Hardware Maintenance Manual page 50

v Failure symptom
v Diagnostics version
v Hardware configuration
v Operating system software
Note: To eliminate confusion, identical systems are considered identical only if
they:
1. Are the exact machine type and models
2. Have the same BIOS level
3. Have the same adapters/attachments in the same locations
4. Have the same address jumpers/terminators/cabling
5. Have the same software versions and levels
6. Have the same diagnostic diskettes (version)
7. Have the same configuration options set in the system
8. Have the same setup for operating-system-controlled files
Comparing the configuration and software set-up between "working and
non-working" systems will often lead to problem resolution.
44
Hardware Maintenance Manual
– Do diagnostics indicate a failure?
– What, when, where, single, or multiple systems?
– Is the failure repeatable?
– Has this configuration ever worked?
– If it has been working, what changes were made prior to it failing?
– Is this the original reported failure?
– Type and version level
– Print (print screen) configuration currently in use
– BIOS level
– Type and version level