Lenovo C205 All-In-One User Manual download pdf (Page 14)

Hardware Maintenance Manual

General Checkout

The drives in the computer you are servicing might have been

rearranged or the drive startup sequence changed. Be extremely

careful during write operations such as copying, saving, or

formatting. Data or programs can be overwritten if you select an

incorrect drive.

Attention

General error messages appear if a problem or conﬂict is found by an

application program, the operating system, or both. For an explanation

of these messages, refer to the information supplied with that software

package.

Notes

• Thedefaultisforthiscomputertobootupinquietmode(no

memory count and checkpoint code display) when no errors are

detected by POST.

• BeforereplacinganyFRUs,ensurethatthelatestlevelofBIOSis

installed on the system. A down-level BIOS might cause false errors

and unnecessary replacement of the motherboard.

Use the following procedures to help determine the cause of the problem:

1. Power-oﬀ the computer and all external devices.

2. Check all cables and power cords.

3. Set all display controls to the middle position.

4. Power-on all external devices.

5. Power-on the computer.

• Lookfordisplayederrorcodes

• Lookforreadableinstructionsoramainmenuonthedisplay.

If you did not receive the correct response, proceed to step 6.

If you do receive the correct response, proceed to step 7.

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Lenovo C205 All-In-One User Manual Page 14