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-OnSelf-Test, or POST. POST does the following operations.

vChecks some basic system-board operations

vChecks the memory operation

vStarts the video operation

vVerifies that the boot drive is working

If 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

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Lenovo E200 manual Post error codes, Post Error Message Description/Action
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E200 specifications

The Lenovo E200 is a versatile and compact laptop designed for both professional and personal use. With a focus on performance, portability, and connectivity, the E200 serves as an ideal computing solution for users seeking reliability and functionality without sacrificing style.

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In summary, the Lenovo E200 is a well-rounded laptop that excels in performance, connectivity, and portability. With its powerful processors, stunning display, and advanced security features, it is tailored for both professionals and casual users who value efficiency and style in their computing experience. Whether for work, study, or leisure, the Lenovo E200 stands out as a reliable choice.
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