Lenovo THINKCENTRE 6396 User Manual download pdf (Page 81)

POST error codes

Each time you power-on the system, it performs a series of tests that check the

operation of the system and some options. This series of tests is called the

Power-On Self-Test, or POST. POST does the following operations.

v Checks some basic system-board operations

v Checks the memory operation

v Starts the video operation

v Verifies that the boot drive is working

the POST detects a problem, an error message appears on the screen. A single

problem can cause several error messages to appear. When you correct the cause of

the first error message, the other error messages probably will not appear on the

screen the next time you turn on the system.

POST Error Message Description/Action

CMOS battery failed The CMOS battery is no longer functional.

Replace the battery.

CMOS checksum error - defaults loaded Checksum of CMOS is incorrect.

The computer loads the default

configuration settings. This error might

indicate that CMOS has become corrupt due

to a weak CMOS battery.

CPU at nnnn nnnn is the running speed of the

microprocessor.

Press Esc to skip memory test Pressing Esc skips the full memory test

HARD DISK INSTALL FAILURE Cannot find or initialize the hard disk drive

controller or the drive.

Make sure the hard disk drive is correctly

installed.

If no hard disk drives are installed, make

sure the hard disk drive selection in Setup is

set to NONE.

Keyboard error or no keyboard present Cannot initialize the keyboard.

Make sure the keyboard is properly

connected to the computer and that no keys

are held pressed during POST.

To purposely configure the computer

without a keyboard, set the error halt

condition in Setup to HALT ON ALL, BUT

KEYBOARD. The BIOS then ignores the

missing keyboard during POST.

Memory Test: This message displays during a full memory

test, counting down the memory areas being

tested.

Memory test fail If POST detects an error during memory

testing, additional information appears. This

information gives specifics about the type

and location of the memory error.

Chapter 7. Symptom-to-FRU Index 75

1 ... 80 81 82 ... 164

Comments to this Manuals

No comments

Lenovo THINKCENTRE 6396 User Manual Page 81

Comments to this Manuals

Related products and manuals for Hardware Lenovo THINKCENTRE 6396