Manuals / Lenovo / Computer Equipment / Personal Computer

Lenovo 8090, 8094 Display, See Power Supply Errors on, Printer, If network administrator is using

Models: 8089 8086 8087 8090 8094 8088

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Message/Symptom

FRU/Action

 

 

 

″Insert a Diskette″ icon appears with a

1.

System Board

known-good diagnostics diskette in the first

2.

Diskette Drive Cable

3.5-inch diskette drive.

3.

Riser card

 

 

4.

Network Adapter

 

 

 

Intensity or color varies from left to right of

1.

Display

characters and color bars

2.

System Board

 

 

 

 

No power or fan not running

1.

See “Power Supply Errors” on page 57.

 

 

 

 

Non-system disk or disk error-type message

1.

Diskette Drive

with a known-good diagnostic diskette.

2.

System Board

 

 

3.

Diskette Drive Cable

 

4.

Riser card

 

 

 

Other display symptoms not listed above

1.

Display

(including blank or illegible display)

2.

System Board

 

 

 

 

Power-on indicator or hard disk drive in-use

1.

Power Supply

light not on, but computer works correctly

2.

System Board

 

 

3.

LED Cables

 

 

 

Printer problems

1.

Printer

 

 

 

 

Program loads from the hard disk with a

1.

Run Setup

known-good diagnostics diskette in the first

2.

Diskette Drive

3.5-inch diskette drive

3.

Diskette Drive Cable

 

 

4.

System Board

 

5.

Riser card

 

6.

Power Supply

 

 

 

RPL computer cannot access programs from

1.

If network administrator is using

its own hard disk.

 

LCCM Hybrid RPL, check startup

 

 

 

 

sequence:

 

 

a. First device - network

 

 

b. Second device - hard disk

 

2.

Hard disk drive

 

 

 

RPL computer does not RPL from server

1.

Check startup sequence

 

 

2.

Check the network adapter LED status

 

 

 

Serial or parallel port device failure (system

1.

External Device Self-Test OK?

board port)

2.

External Device

 

 

3.

Cable

 

4.

System Board

 

 

 

Serial or parallel port device failure (adapter

1.

External Device Self-Test OK?

port)

2.

External Device

 

 

3.

Cable

 

4.

Alternate Adapter

 

5.

System Board

 

 

 

Chapter 7. Symptom-to-FRU Index 87

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Lenovo 8090, 8094, 8089, 8088, 8087 Display, See Power Supply Errors on, Printer, If network administrator is using, Sequence
Page 92 Page 94

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.