Problem Determination Tips - Lenovo ThinkStation P320 Hardware Maintenance Manual

4. Turn on all external devices.
5. Turn on the computer.
• Look for displayed error codes.
• Listen for beep codes.
• Look for readable instructions or a main menu on the display.
If you did not receive the correct response, proceed to step 6 on page 50.
If you do receive the correct response, proceed to step 7 on page 50.
6. Look at the following conditions and follow the instructions:
• If you hear beep codes during POST, go to "Beep symptoms" on page 52.
• If the computer displays a POST error, go to "POST error codes" on page 52.
• If the computer hangs and no error is displayed, continue at step step 7 on page 50.
7. Run the Diagnostic programs. See "UEFI diagnostic program" on page 65.
• If you receive an error, replace the part that the diagnostic program calls out.
• If the test stops and you cannot continue, replace the last device tested.

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 drive upgrades
• Failure symptom
– 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 its failing?
– Is this the original reported failure?
• Diagnostics version
– Type and version level
• Hardware configuration
– Print (print screen) configuration 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
50
P320 Hardware Maintenance Manual