Dell Inspiron 7000 Dell Inspiron 7000 Reference and Troubleshooting Guide - Page 97
Coprocessor Error Exception Test
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Interrupt Controller Test Generates an interrupt on each interrupt request (IRQ) line to verify that devices using that line can communicate with the microprocessor and that the interrupt controller sends the correct memory addresses to the microprocessor. System Speaker Test Checks the functionality of the speaker by generating eight tones. Coprocessor Calculation Test Checks the use of different types of numbers and the math coprocessor's ability to calculate correctly. Coprocessor Error Exception Test Verifies the math coprocessor's ability to handle errors and to send IRQs to the microprocessor. PCMCIA Test Checks the functionality of the PC Card controller on the system board. USB Register Test Checks the onboard registers of the universal serial bus (USB) interface. This subtest does not test USB peripherals. USB Memory Structure Test Tests the USB controller's ability to access and understand standard USB data in system memory. Temperature Range Test Verifies that the temperature sensor is within the minimum/maximum range and that the sensor can detect change. Fan On/Off Test Verifies the fan's cooling ability, and that it can be turned off and on. Battery Charger Test Verifies that the battery charger produces a voltage and that the battery holds a charge. The subtests in the Video test group verify the proper operation of the video controller and the video control circuitry installed in the computer. These subtests check for the correct operation of the readable registers in the video circuitry and the controller. They write, read, and verify data patterns in the cursor registers of the controller. The Running the Dell Diagnostics 4-17