2.Turn off the system and peripheral devices and disconnect all external cables and power cords; then, remove the cover (see “Removing the cover - desktop model” on page 34 for details).

3.Push down on the retainer clip, and at the same time, use a flat bladed screwdriver to carefully pry the metal loop from under the hook attaching the fansink to the processor.

4.Carefully remove the other metal loop from the hook attaching the fansink to the processor. Lift up and remove the fansink.

Note: Once you remove the heat sink from the microprocessor, you must replace it with a new device.

5.Pull out and lift up the release lever and remove the microprocessor from the connector. Store the microprocessor in a static-protective bag for possible future use.

Power supply removal - Desktop Model

1.Remove the cover. See “Removing the cover - desktop model” on page 34.

2.Remove the four screws that hold the power supply to the back of the chassis.

3.The power supply is attached to the base of the chassis by a latch on the front. Slide the power supply forward to dislatch if from the chassis.

4.Lift out the power supply.

64Hardware Maintenance Manual

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IBM 2256, 6348, 6342, 6339, 6346, 6341, 2257, 6337, 2254, 6347, 6336 manual Power supply removal Desktop Model
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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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