Miscellaneous error messages

Message/Symptom

FRU/Action

 

 

 

CMOS Backup Battery inaccurate

1.

CMOS Backup Battery (see Chapter 2,

 

 

 

“Safety information,” on page 5)

 

2.

System Board

 

 

Changing colors

Display/Monitor

 

 

 

Computer will not power-off. See “Power

1.

Power Switch

Supply Errors” on page 57.

2.

System Board

 

 

3.

Riser card

 

 

 

Computer will not RPL from server

1.

Ensure that network is in startup

 

 

 

sequence as first device or first device

 

 

after diskette

 

2.

Ensure that network adapter is enabled

 

 

for RPL

 

3.

Network adapter (Advise network

 

 

administrator of new MAC address)

 

 

 

Computer will not perform a Wake on LAN

1.

Check power supply and signal cable

(if applicable)

 

connections to network adapter

 

 

 

2.

Ensure that the operating system settings

 

 

are set to enable Wake on LAN

 

3.

Ensure Wake on LAN feature is enabled

 

 

in Setup/Configuration (see “Starting the

 

 

Setup Utility program” on page 53)

 

4.

Ensure network administrator is using

 

 

correct MAC address

 

5.

Ensure no interrupt or I/O address

 

 

conflicts

 

6.

Network adapter (advise network

 

 

administrator of new MAC address)

 

 

 

Dead computer. See “Power Supply Errors”

1.

Power Supply

on page 57.

2.

System Board

 

 

3.

Riser card

 

 

 

Diskette drive in-use light remains on or

1.

Diskette Drive

does not light when drive is active.

2.

System Board

 

 

3.

Diskette Drive Cable

 

4.

Riser card

 

 

 

Flashing cursor with an otherwise blank

1.

System Board

display.

2.

Primary Hard Disk Drive

 

 

3.

Hard Disk Drive Cable

 

4.

Riser card

 

 

 

Incorrect memory size during POST

1.

Run the Memory tests

 

 

2.

Memory Module

 

3.

System Board

 

 

 

86Hardware Maintenance Manual

Page 91 Page 93
Page 92
Image 92
Lenovo 8088, 8094, 8089, 8090, 8087, 8086 manual Miscellaneous error messages
Page 91 Page 93

8089, 8086, 8087, 8090, 8094 specifications

The Lenovo 8088, 8094, 8090, 8087, and 8086 series represent a significant portion of the historical legacy of computing, particularly in the realm of personal computers and microprocessors. Each of these models showcases unique features and technologies that contributed to the evolution of computing during their time.

Starting with the Lenovo 8088, this microprocessor was an enhancement of the earlier Intel 8086, designed primarily for use in IBM-compatible PCs. Its 16-bit processor architecture was notably capable of handling 8-bit data bus interactions, which made it more versatile for various applications. The 8088 had a maximum clock speed of 4.77 MHz, providing sufficient computational power for its time. One of the key features was its support for segmented memory, which allowed for more efficient memory management by dividing memory into segments for code, data, and stack.

The Lenovo 8094, while less commonly mentioned, often refers to IBM’s PS/2 line that utilized advanced features for the time. It supported VGA graphics, a significant improvement in visual output that opened new possibilities for graphical user interfaces. The 8094 also hosted a more sophisticated input/output system that allowed for better compatibility and connectivity with peripherals.

Moving to the Lenovo 8090, this model was part of the PS/2 portfolio, noted for its improved hardware architecture. It provided an upgraded interface for keyboard and mouse, which enhanced user interaction. With further support for high-density floppy disks and better memory access speeds, the 8090 paved the way for more efficient personal computing experiences.

The Lenovo 8087 was an auxiliary processor that brought floating-point arithmetic capabilities to the 8086 series. This coprocessor greatly expanded the computing power of the CPU by handling complex mathematical computations, which was especially useful in engineering and scientific applications. The 8087 allowed for more precise calculations than the basic integer math natively supported by earlier processors.

Finally, the Lenovo 8086, iconic in its own right, was a groundbreaking microprocessor that introduced the x86 architecture. It operated at clock speeds ranging from 5 to 10 MHz and was one of the first to support 16-bit data types fully. Its capabilities shaped software development and computer programming and established a foundation for the PC compatibles we know today.

In summary, the evolution from the Lenovo 8088 through to the 8086 helped shape modern computing paradigms by introducing features that improved performance, efficiency, and user experience, paving the way for the vast technological advancements seen in contemporary computing devices.
Top Page Image Contents