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 screen is blank.

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

 

 

 

as a possible cause of the problem: connect the monitor cable directly to the

 

 

correct connector on the rear of the server.

 

2.

Make sure that:

 

 

v The server is turned on. If there is no power to the server, see “Power

 

 

problems” on page 45.

 

 

v The monitor cables are connected correctly.

 

 

v The monitor is turned on and the brightness and contrast controls are

 

 

adjusted correctly.

 

 

v No beep codes sound when the server is turned on.

 

 

Important: In some memory configurations, the 3-3-3 beep code might sound

 

 

during POST, followed by a blank monitor screen. If this occurs and the Boot

 

 

Fail Count option in the Start Options of the Configuration/Setup Utility

 

 

program is enabled, you must restart the server three times to reset the

 

 

configuration settings to the default configuration (the memory connector or

 

 

bank of connectors enabled).

 

3. Make sure that the correct server is controlling the monitor, if applicable.

 

4. Make sure that damaged BIOS code is not affecting the video; see “Recovering

 

 

from BIOS update failure” in the Problem Determination and Service Guide.

 

5. See “Solving undetermined problems” in the Problem Determination and

 

 

Service Guide.

 

 

 

The monitor works when you

1.

Make sure that:

turn on the server, but the

 

v The application program is not setting a display mode that is higher than the

screen goes blank when you

 

 

capability of the monitor.

start some application

 

 

v You installed the necessary device drivers for the application.

programs.

 

 

2. Run video diagnostics (see the Problem Determination and Service Guide).

 

 

v If the server passes the video diagnostics, the video is good; see “Solving

 

 

undetermined problems” in the Problem Determination and Service Guide.

 

 

v (Trained service technician only) If the server fails the video diagnostics,

 

 

replace the system board.

 

 

 

42IBM System x3250 Types 4364 and 4365: Installation Guide

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IBM 4365, 4364 manual 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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