DELL M1PTF 用户手册

If you experience a problem with your 

computer, perform the checks in “Lockups and 

Software Problems” on page 30 and run the 

Dell Diagnostics before you contact Dell for 

technical assistance.
It is recommended that you print these 

procedures before you begin.

NOTE: Dell Diagnostics works only on 

Dell computers.
NOTE: The 

Drivers and Utilities

 disc 

is optional and may not ship with your 

computer.

Ensure that the device that you want to test 

displays in the system setup program and is 

active. Press <F2> during POST (Power On Self 

Test) to enter the System Setup (BIOS) utility.
Start the Dell Diagnostics from your hard drive 

or from the 

Drivers and Utilities

 disc.

The Dell Diagnostics is located on a hidden 

diagnostic utility partition on your hard drive.

NOTE: If your computer cannot display 

a screen image, contact Dell (see 

Ensure that the computer is connected to an 

electrical outlet that is known to be working 

properly.
Turn on (or restart) your computer.

When the DELL

™

 logo appears, press <F12> 

immediately. Select Diagnostics from the 

boot menu and press <Enter>. 

This may invoke the Pre‑Boot System 

Assessment (PSA) on your computer.