vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom

Action

 

 

 

The mouse or pointing device

1.

If the server is attached to a KVM switch, bypass the KVM switch to eliminate it

does not work.

 

as a possible cause of the problem: connect the mouse or pointing-device

 

 

 

 

cable directly to the correct connector on the rear of the server.

 

2.

Make sure that:

 

 

v The mouse or pointing-device cable is securely connected and the keyboard

 

 

and mouse cables are not reversed.

 

 

v The mouse device drivers are installed correctly.

 

 

v The mouse is enabled in the Configuration/Setup Utility program.

 

3.

Reseat the mouse or pointing device cable.

 

4.

Replace the following components one at a time, in the order shown, restarting

 

 

the server each time:

 

 

a. Mouse or pointing device

 

 

b. (Trained service technician only) System board

 

 

 

Memory problems

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom

Action

 

 

 

The amount of system memory

1.

Make sure that:

that is displayed is less than the

 

v No error LEDs are lit on the operator information panel.

amount of installed physical

 

 

v The memory modules are seated correctly.

memory.

 

 

 

v You have installed the correct type of memory (see “Installing a memory

 

 

module” on page 9).

 

 

v All banks of memory are enabled. The server might have automatically

 

 

disabled a memory bank when it detected a problem.

 

2.

Check the POST error log for error message 289 (see “Using the

 

 

Configuration/Setup Utility program” on page 26); if a DIMM was disabled by a

 

 

system-management interrupt (SMI), replace the DIMM.

 

3.

Run memory diagnostics (see “Running the diagnostic programs” in the

 

 

Problem Determination and Service Guide).

 

4.

Add one pair of DIMMs at a time, making sure that the DIMMs in each pair

 

 

match.

 

5.

Reseat the DIMMs.

 

6.

Replace the following components one at a time, in the order shown, restarting

 

 

the server each time:

 

 

a. DIMMs

 

 

b. (Trained service technician only) System board

 

 

 

40IBM System x3250 Types 4364 and 4365: Installation Guide

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IBM 4365, 4364 manual Memory problems, Problem Determination and Service Guide
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4364, 4365 specifications

The IBM 4365 and 4364 are significant models in IBM’s lineup of mainframe computers, designed primarily for large organizations requiring robust processing capabilities. These models emerged during the late 1980s and early 1990s, serving to enhance the performance and versatility of business computing environments.

The IBM 4365, launched in 1985, is known for its sophisticated architecture and large processing power, capable of managing substantial transaction volumes. It features the advanced Multiple Virtual Storage (MVS) operating system, which allows for efficient processing and management of numerous tasks simultaneously. The MVS system contributes to high reliability and availability, factors paramount for businesses that rely on uninterrupted service.

One of the standout characteristics of the IBM 4365 is its ability to scale. Users could configure the system with multiple processors, allowing it to handle increasing workloads effectively. This scalability is made possible through its use of IBM's proprietary technology, which optimizes resource allocation to improve efficiency. The system could support an impressive number of users, making it ideal for large enterprises.

In contrast, the IBM 4364, released slightly later, is a more modest version aimed at smaller organizations but still renowned for its reliable performance. It too operates the MVS operating system, but its configurations are tailored for less intensive processing needs. It is designed with cost-effectiveness in mind, making it suitable for businesses that require robust computing without the extensive capabilities of larger systems.

Both models benefit from IBM's robust security features, ensuring data protection and compliance with industry standards. Additionally, they offer significant storage options, utilizing IBM's innovative storage technologies to retain vast amounts of data efficiently.

Among the key technologies that defined these mainframes were the use of advanced input/output capabilities and compatibility with a broad range of peripheral devices. This integration allowed organizations to enhance productivity while maintaining seamless operations across various applications.

Overall, the IBM 4365 and 4364 exemplify the evolution of mainframe technology during their era, offering remarkable processing power, superior reliability, and scalability while paving the way for future innovations in enterprise computing. Their legacy remains influential in shaping the landscape of business technology today, as organizations continue to rely on mainframe processing for critical operations.
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