Lenovo 4086 Personal Computer User Manual


 
Problem determination tips
Due to the variety of hardware and software combinations that can be encountered, use the following
information to assist you in problem determination. If possible, have this information available when
requesting assistance from Service Support and Engineering functions.
Machine type and model
Processor or hard disk upgrades
Failure symptom
Do diagnostics indicate a failure?
What, when, where, single, or multiple systems?
Is the failure repeatable?
Has this conguration ever worked?
If it has been working, what changes were made prior to it failing?
Is this the original reported failure?
Diagnostics version
Type and version level
Hardware conguration
Print (print screen) conguration currently in use
BIOS level
Operating system software
Type and version level
Notes: 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 conguration options set in the system
8. Have the same setup for the operating system control les
Comparing the conguration and software set-up between “working and non-working” systems will often
lead to problem resolution.
36 ThinkCentre Hardware Maintenance Manual