Table 4. Abbreviated list of POST error codes (continued)

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.

Error code

Description

Action

 

 

 

 

 

162

Invalid configuration information or

1.

Run the Configuration/Setup

 

CMOS random-access memory

 

Utility program, select Load

 

(RAM) checksum failure.

 

 

 

Default Settings, and save the

 

 

 

 

 

 

settings.

 

 

2.

Reseat the battery.

 

 

3.

Replace the battery.

 

 

4.

(Trained service technician

 

 

 

only) Replace the system

 

 

 

board.

 

 

 

163

The time of day has not been set.

Run the Configuration/Setup Utility

 

 

program, set the date and time,

 

 

and save the settings.

 

 

 

 

 

164

Memory size has changed.

1.

Run the Configuration/Setup

 

 

 

 

 

Utility program; then, exit,

 

 

 

saving the configuration

 

 

 

settings.

 

 

2.

Reseat the DIMMs.

 

 

 

 

 

184

Power-on password damaged.

1.

Run the Configuration/Setup

 

 

 

 

 

Utility program, select Load

 

 

 

Default Settings, and save the

 

 

 

settings.

 

 

2.

Reseat the battery.

 

 

3.

Replace the following

 

 

 

components one at a time, in

 

 

 

the order shown, restarting the

 

 

 

server each time:

 

 

 

a.

Battery

 

 

 

b.

(Trained service technician

 

 

 

 

only) System board

 

 

 

 

 

187

VPD serial number not set.

1.

Reseat the optional Remote

 

 

 

 

 

Supervisor Adapter II SlimLine.

 

 

2.

(Trained service technician

 

 

 

only) Replace the system

 

 

 

board.

 

 

 

189

Three attempts were made to

Restart the server and enter the

 

access the server with an incorrect

administrator password; then, run

 

password.

the Configuration/Setup Utility

 

 

program and change the power-on

 

 

password.

 

 

 

 

 

Chapter 5. Solving problems 31

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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.