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FRU tests
The following table shows the test for each FRU.
54
ThinkPad T400 and R400Hardware Maintenance Manual
Table 9. FRU tests
FRU
Applicable test
System board
1. Diagnostics --> CPU/Coprocessor
2. Diagnostics --> Systemboard
3. If the ThinkPad Advanced Dock, the ThinkPad Advanced Mini
Power
Diagnostics --> ThinkPad Devices --> AC Adapter, Battery 1
(Battery2)
LCD unit
1. Diagnostics --> Video Adapter
2. Interactive Tests --> Video
Modem daughter card
1. Make sure the modem is set up correctly.
(MDC-3.0)
2. Replace the modem jack and the modem card in turn, and run
Audio
Enter the BIOS Setup Utility and change Serial ATA (SATA) setting
to Compatibility, and run Diagnostics --> Other Device -->
Conexant Audio
Speaker
Interactive Tests --> Internal Speaker
Note: Once Modem/Audio test is done, the no sound is heard
this test. In this case, turn off and turn on the computer. Then, run
this test again.
PC Card slot
Diagnostics --> Systemboard --> PCMCIA
ExpressCard slot
1. Insert a PCI-Express/USB Wrap card into the ExpressCard slot.
2. Turn on the computer.
3. Run Diagnostics --> ThinkPad Devices --> ExpressCard slot.
Keyboard
1. Diagnostics --> Systemboard --> Keyboard
2. Interactive Tests --> Keyboard
Hard disk drive
Enter the BIOS Setup Utility and change Serial ATA (SATA) setting
to Compatibility, and run Diagnostics --> Fixed Disks
You can also diagnose the hard disk drive without starting up the
operating system. To diagnose the hard disk drive from the BIOS
Setup Utility, do as follows:
1. Remove any diskette from the diskette drive, and then turn off
2. Turn on the computer.
3. While the message, "To interrupt normal startup, press the
4. Using cursor keys, select HDD diagnostic program. Press
5. Using cursor keys, select Main hard disk drive or Ultrabay
6. Press Enter to start the diagnostic program.
Diskette drive
1. Diagnostics --> Diskette Drives
2. Interactive Tests --> Diskette
Dock or the ThinkPad Essential Port Replicator is attached to
the ThinkPad computer, detach it. Place the computer on a
horizontal surface, and run Diagnostics --> ThinkPad Devices
--> HDD Active Protection Test.
Note: Do not apply any physical shock to the computer while
the test is running.
the following tests in Diagnostics --> Communication:
a. Conexant Smart Modem Interrupt
b. Conexant Smart Modem Dialtone
the computer.
blue ThinkVangate button," is displayed at the lower left of the
screen, press F1 to enter the BIOS Setup Utility.
enter.
hard disk drive.
- Quick Links:
- Specifications
- 1050 DIMM
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