Chapter 1. General Checkout

This general checkout procedure is for Types 2254, 2256, 2257, 6336, 6337, 6339, 6341, 6342, 6346, 6347, and 6348 computers.

Attention:

The drives in the computer you are servicing might have been rearranged or the drive startup sequence changed. Be extremely careful during write operations such as copying, saving or formatting. Data or programs can be overwritten if you select an incorrect drive.

Diagnostic error messages appear when a test program finds a problem with a hardware option. For the test programs to properly determine if a test Passed, Failed or Aborted, the test programs check the error-return code at test completion. See “Diagnostics” on page 12.

General error messages appear if a problem or conflict is found by an application program, the operating system, or both. For an explanation of these messages, refer to the information supplied with that software package.

Notes:

vTypes 2254, 2256, 2257, 6336, 6337, 6339, 6341, 6342, 6346, 6347, and 6348 computers default to come up quiet (no beep and no memory count and checkpoint code display) when no errors are detected by POST.

vTo enable beep and memory count and checkpoint code display when a successful POST occurs, do the following:

1.Select Start Options in the Configuration/Setup Utility program (see “Setup Utility program” on page 10).

2.Set Power-On Self-Test to Enhanced.

vBefore replacing any FRUs, ensure that the latest level of BIOS is installed on the system. A down-level BIOS might cause false errors and unnecessary replacement of the system board. For more information on how to determine and obtain the latest level BIOS, see “BIOS levels” on page 199.

vIf multiple error codes are displayed, diagnose the first error code displayed.

vIf the computer hangs with a POST error, go to ″Symptom-to-FRU Index″ on page 69.

vIf the computer hangs and no error is displayed, go to “Undetermined problems” on page 109.

vIf an installed device is not recognized by the diagnostics program, that device might be defective.

1.Power-off the computer and all external devices.

2.Check all cables and power cords.

3.Make sure the system board is seated properly.

4.Set all display controls to the middle position.

5.Power-on all external devices.

6.Power-on the computer.

7.Check for the following response:

v Readable instructions or the Main Menu.

© Copyright IBM Corp. 2000

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IBM 6347, 6348, 6342, 6339, 6346, 6341, 2257, 2256, 6337, 2254, 6336 manual General Checkout, Set Power-On Self-Test to Enhanced
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6339, 6337, 6342, 6341, 6336 specifications

IBM's 6348, 6346, 6347, 2254, and 2257 models are part of the company's extensive portfolio of enterprise-level computing solutions, designed to enhance performance and efficiency for businesses.

The IBM 6348 and 6346 are terminals that cater to large-scale enterprises, providing a reliable interface for interaction with mainframe systems. The 6348 model offers a versatile display with options for wide and standard formats, making it ideal for applications that require enhanced visibility. With its durable build, the 6348 is well-suited for high-demand environments. In contrast, the 6346 is designed for more specific tasks, featuring a streamlined interface that promotes ease of use. Both models leverage IBM's longstanding expertise in robust technology, ensuring low latency and high throughput.

The IBM 6347 terminal takes functionality a step further by incorporating advanced display technologies. It supports various connectivity options, allowing it to integrate seamlessly into existing networks. Its user-friendly interface and customizable features mean that organizations can tailor the device to meet specific operational needs. The 6347 also emphasizes security, with encryption features that protect sensitive data transmitted over the network.

Turning to the IBM 2254 and 2257, these models represent IBM's commitment to providing flexible and scalable solutions for businesses. The 2254 is engineered as a technical workstation with a focus on graphics performance, making it an excellent choice for engineering and design applications. By utilizing cutting-edge graphics technologies, it facilitates complex visual tasks and improves productivity in creative fields.

The IBM 2257, on the other hand, is known for its powerful processing capabilities, targeting users requiring intensive computational tasks. With advanced CPU options and extensive memory support, the 2257 is ideal for data analysis, software development, and other resource-heavy operations. Both models leverage IBM's proprietary technologies designed to enhance system reliability and user experience.

Collectively, the IBM 6348, 6346, 6347, 2254, and 2257 models demonstrate IBM's ability to innovate while remaining focused on the needs of enterprises. With a strategic combination of durability, advanced features, and secure communications, these devices ensure that organizations can operate effectively in today’s fast-paced business environment. The integration of these models into enterprise workflows can enhance productivity, streamline processes, and facilitate secure communication, making them valuable assets for any organization.
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