3 Tests and Diagnostics

3.5 Memory Test

3.5Memory Test

To execute the Memory Test, select 2-MOMORY TEST from the DIAGNOSTIC TEST menu, press Enter and follow the directions on the screen. The Memory test consists of five subtests. Set the highlight bar to the subtest you want to execute and press Enter.

Subtest 01 Conventional Memory

This subtest writes test data to conventional memory (0 to 640 KB), and reads and compares the result with the original data. The test address is displayed per 4 KB.

Subtest 02 Protected Mode

Note: The CONFIG.SYS file must be configured without extended memory manager programs such as EMM386.EXE, EMM386.SYS or QEMM386.SYS. Also, the HIMEM.SYS must be deleted from the CONFIG.SYS file.

This subtest writes constant data and address data (from 1MB to maximum MB), and reads the new data and compares the result with the original data.

Subtest 04 Cache Memory

To test the cache memory, a pass-through write-read comparison of ‘5A’ data is run repeatedly to the test area (from ‘7000’:’Program’ size to ‘7000’:’7EEE’ (32 KB)) to check the hit-miss ratio (on/off status) for CPU cache memory.

Number of misses < Number of hits → OK

Number of misses ≥ Number of hits → NG

Subtest 05 L2 Cache Memory

To test the L2 cache memory, a pass-through write-read comparison of ‘5A’ data is run repeatedly to the test area (‘7000’:’Program’ size to ‘7000’:’7FFF’ (32 KB)) to check the hit-miss ratio (on/off status) for L2 cache memory.

Number of misses < Number of hits → OK

Number of misses ≥ Number of hits → NG

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PORTEGE A100 Maintenance Manual (960-460)

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Toshiba A100 manual Tests and Diagnostics Memory Test

A100 specifications

The Toshiba A100 series represents a notable range of laptops that combines performance and versatility, catering specifically to the needs of both casual users and professionals. Launched with an emphasis on multimedia capabilities and productivity, the A100 series showcases an array of features designed to enhance the user experience.

One of the primary characteristics of the Toshiba A100 is its robust design. The laptop typically features a sleek, compact chassis that is both aesthetically pleasing and practical, making it easy to carry for those on the move. The build quality is commendable, with a durable exterior that can withstand the rigors of daily use.

Under the hood, the A100 series is powered by Intel’s core processors, which offer a balanced blend of performance and power efficiency. This enables smooth multitasking and quick application launches, ensuring that users can handle demanding tasks without lag. The inclusion of generous RAM options allows for an enhanced computing experience, making this laptop suitable for both work and entertainment.

The display of the Toshiba A100 is another highlight, often featuring a vivid, high-resolution screen that delivers sharp images and vibrant colors. This makes it an excellent choice for watching movies, editing photos, or simply enjoying everyday tasks. Additionally, some models in the series offer an anti-glare coating, reducing reflections and providing a more comfortable viewing experience in various lighting conditions.

Connectivity options are comprehensive, with multiple USB ports, HDMI outputs, and a multi-card reader. This ensures that users can easily connect to peripherals, external displays, and transfer files with ease. The inclusion of Wi-Fi and Bluetooth capabilities facilitates seamless integration into modern home and office environments.

Furthermore, the Toshiba A100 series includes advanced audio technologies, such as built-in stereo speakers that enhance the multimedia experience. The laptop often features Toshiba's sound enhancement technologies, delivering clear and dynamic sound for music, movies, and video calls.

Lastly, battery performance is a critical aspect of the Toshiba A100 series. Many models are optimized for extended use, allowing users to work or play for hours on a single charge. This combination of efficient hardware and thoughtful design results in a laptop that not only meets but exceeds the expectations of its users.

In conclusion, the Toshiba A100 series stands out with its robust performance, impressive display, and user-friendly features, making it a compelling choice for those seeking a reliable and stylish laptop for various applications.