3-4Diagnostic Tools

Power-On Self-Test (POST)

POST is a series of diagnostic tests that run automatically on Compaq computers when the system is turned on. POST checks the following assemblies to ensure that the computer system is functioning properly:

Processors

Keyboard

Power supply

System board

Memory

Memory expansion boards

Controllers

Diskette drives

Hard drives

If POST finds an error in the system, an audible and/or visual message appears. If an error code appears on the screen during POST or after resetting the system, follow the instructions in Table 3-1. Error messages and codes listed in Table 3-1 include all codes generated by Compaq products. Your system generates only those codes that are applicable to your configuration.

The Action column lists the steps needed to correct the problem. After completing each step, run the Diagnostics program. If the error code reappears, perform the next step, then run the Diagnostics program again. Repeat this procedure until the error is corrected.

Table 3-1

POST Error Messages

 

 

Audible

 

 

 

 

Error Code

Beeps

Probable Source of

Action

 

 

 

L=Long

Problem

 

 

 

 

S=Short

 

 

 

 

A Critical Error

None

A catastrophic system

Run Diagnostics. Replace failed

 

 

occurred prior to

 

error, which caused the

assembly as indicated.

 

 

this power-up

 

server to crash, has been

 

 

 

 

 

logged.

 

 

 

 

 

 

 

 

 

101-ROM Error

1L,1S

System ROM checksum.

Run Diagnostics. Replace failed

 

 

 

 

 

assembly as indicated.

 

 

 

 

 

 

 

 

101-I/O ROM

None

Options ROM checksum.

Run Diagnostics. Replace failed

 

 

Error

 

 

assembly as indicated.

 

 

 

 

 

 

 

 

102-System

None

DMA, timers, etc.

Replace the system board. Run

 

 

Board Failure

 

 

the Compaq System

 

 

 

 

 

Configuration Utility.

 

 

 

 

 

 

 

 

 

 

 

 

 

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Image 60
Compaq 1850R manual Power-On Self-Test Post, Post Error Messages

1850R specifications

The Compaq 1850R, introduced in the late 1990s, is a robust and versatile server known for its reliability and performance. This rack-mounted server was designed to cater to the evolving needs of businesses that required high availability and scalability in their IT infrastructure.

At the core of the Compaq 1850R is its support for dual Intel Pentium III processors. This dual-processor configuration provides enhanced multitasking capabilities, allowing the server to handle more simultaneous processes effectively. With a clock speed of up to 1 GHz, businesses could run demanding applications and services with improved speed and efficiency.

One of the standout features of the Compaq 1850R is its impressive memory capacity. The server supports up to 8GB of SDRAM, which allows it to manage larger datasets and facilitate better performance for memory-intensive applications. This makes the 1850R an ideal choice for database management and enterprise resource planning.

Storage options are another highlight of the Compaq 1850R. The server can accommodate multiple hot-swappable hard drive bays, supporting both SCSI and IDE drives. This flexibility allows organizations to scale their storage needs as their data requirements grow. The ability to add or replace drives without downtime is a significant advantage for maintaining high availability environments.

In terms of networking, the Compaq 1850R features integrated Ethernet ports for reliable network connectivity. The server also supports advanced RAID configurations, which enhances data protection and improves performance by distributing I/O across multiple drives. This feature is particularly important for businesses that rely heavily on data integrity and availability.

The design of the 1850R is optimized for rack mounting, a standard for enterprise environments looking to maximize space and efficiency. Its compact form factor fits seamlessly into standard 19-inch racks, making it suitable for various server rooms and data centers.

Overall, the Compaq 1850R is a powerful server that combines solid processing capability, extensive memory support, and flexible storage options. It remains a valuable asset for organizations seeking to build a reliable and scalable IT infrastructure. As businesses continue to demand efficiency and performance from their servers, the 1850R stands as a testament to Compaq's commitment to quality and innovation in the tech industry.