3-19

FailSafe Boot Block ROM

The FailSafe Boot Block ROM facilitates system recovery in the unlikely event of a ROM flash failure, for example, if a power failure occurs during a ROM upgrade. The Boot Block is a flash-protected section of the ROM that checks to validate the system ROM each time power to the system is turned on.

If the system ROM is valid, the system starts normally.

If the system ROM fails the validation check, the FailSafe Boot Block ROM provides enough support to start the system from a user ROMPaq diskette that will program the system ROM with a valid image.

IMPORTANT: The workstation ships with the diskette drive enabled. If the diskette drive is disabled, the FailSafe Boot Block ROM will override the disabled component to accommodate a system ROM recovery in the event a system ROM failure occurs.

Because there is no video or hard drive support from the Boot Block ROM, the keyboard lights communicate information. When the Boot Block detects an invalid system ROM, the system sounds a series of beeps (one long and three short) and flashes the three keyboard lights.

To recover the system after hearing the FailSafe Boot Block beeps:

1.Remove any diskettes from the diskette drive and turn off the power.

2.Insert a user ROMPaq diskette into the diskette drive.

3.Turn on power to the system.

If a Setup Password has been established, the Caps Lock light will turn on.

4.Enter the Setup Password.

If the system successfully starts from the diskette and successfully reprograms the ROM, the three keyboard lights will turn on.

Compaq Professional Workstation AP200 Reference Guide

Writer: M. Church Project: Compaq Professional Workstation AP200 Reference Guide Comments: 352620-003

File Name: D-CH03.DOC Last Saved On: 1/19/99 9:39 AM

COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED

Page 54
Image 54
Compaq AP200 manual FailSafe Boot Block ROM

AP200 specifications

The Compaq AP200 is a notable entry in the world of personal computing that came out during the late 1990s. As a versatile and powerful workstation, it was designed to cater to the growing demands of business users and technical professionals at a time when computing power was rapidly evolving. One of the main features of the AP200 was its robust architecture, which included Intel's Pentium II processors, allowing for heightened performance and multitasking capabilities. The system could be configured with a memory capacity of up to 512 MB, a substantial amount for its era, enabling users to run multiple applications simultaneously without lag.

The Compaq AP200 incorporated advanced graphics technology, often equipped with high-performance 3D graphics cards that provided excellent rendering capabilities for graphics-intensive applications. This made it a preferred choice for designers and engineers who depended on sophisticated software for their work, such as CAD programs. The flexibility of the AP200 also allowed for a variety of connectivity options, including USB ports for peripherals, parallel and serial ports, and network interfaces, ensuring compatibility with a wide range of accessories and network setups.

Storage options were another highlight of the Compaq AP200, with the ability to support large capacity hard drives typical of the late 1990s, which facilitated the storage of important documents, images, and design files. Users also had the option to install external drives or use CD-ROM drives, enhancing the device’s functionality for multimedia applications and data backups. The inclusion of Windows NT as a supported operating system provided users with a stable and secure environment suited for enterprise-level tasks.

The design of the Compaq AP200 was both practical and appealing, featuring a sturdy chassis that ensured durability while still being compact enough to fit into most office spaces. The emphasis on serviceability was apparent in its design, as components were easily accessible for upgrades and repairs, making it a cost-effective choice for businesses. With its combination of cutting-edge technology, expandable options, and user-friendly features, the Compaq AP200 represented a significant step forward in workstation design, catering to the needs of professionals during a transformative era in computing.