P.H.D. is a test card for low-level testing of AT 286 through Pentium III (including AMD K5, K6, and K7/Cyrix M2 and MMX Technology). The card provides a comprehensive range of tests for complete system testing including all functions of RAM, ROM, DMA Controllers, Page Registers, 8042 Keyboard Controller, Interrupt Controllers, Timers, CMOS Clock, and many other support chips. It displays exact failures "on screen", even when the system fails to boot or appears completely "DEAD". This card is a complete redesign and upgrade of the highly successful P.H.D. 16. The newly added features improve P.H.D. capability of testing dead and intermittently failing motherboards. Larger ROM space allows the card additional peripheral diagnostics as well as a new Burn-In menu for complete system testing.

On power-up, P.H.D.  initializes the system, inserts its diagnostics (diagnostics are embedded on the on-board ROMs) and displays all information on the system’s monitor (using the board’s built-in software video drivers). As each test is conducted, users see the results in simple to understand terms right on the screen. P.H.D. also has the capability to automatically loop on one test or all tests and to "exempt" a single test selected to fully test intermittent failures.

P.H.D. Plus uses on-board processor emulation to generate true interrupt requests and DMA transfers. This enables users to troubleshoot failures down to the exact DMA and/or interrupt line. The processor emulation capability enables P.H.D. Plus to pinpoint errors that other products may generalize or not detect at all. The card also has an "on board video adapter" which allows users to plug the card to a video monitor. This feature allows the results to be displayed "on screen" eliminating the tedious task of deciphering error codes

P.H.D. Plus is also the ultimate product to be used for compatibility testing. P.H.D.’s diagnostic routines test the functionality and capability of all circuits.  As each motherboard component is diagnosed, the functionality of that component is compared to industry timing standards. This feature allows PHD to quickly determine incompatibility and/or non-compliance in motherboard designs.

P.H.D. Plus has an extensive memory testing capability. This includes the testing of Gate A-20, memory address lines, memory refresh circuit and all physical memory. Within the memory test, P.H.D. Plus will perform a bit stuck low, bit stuck high and data integrity. The data integrity function writes a set of instructions to a particular memory address, using worst case formats as well as in-house designed algorithms, that differentiate it from other products on the market.

P.H.D. Plus’s Extended Diagnostics expands the board’s core-level testing capabilities, allowing users to quickly and accurately verify the proper operation of a system’s extended RAM, external cache, serial and parallel ports, video adapters, printers, hard drives, and other functions not covered by the Diagnostic or POST modes.  For further details on the test capabilities of Extended Diagnostics please reference QuickTech ’98.   All the diagnostics are run from ROM.  No disk required.

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Product Functions:

Boots DEAD Boards – Boots boards without the need of POST support. PHD’s on-board components help initialize system boards that fail to boot. Shows on screen exactly which components have failed or are incompatible.
On-board Firmware – Components are individually tested with firmware to detect failures, intermittent errors or incompatibility.
Processor Emulation – On board processor emulators generate true DMA transfers and Interrupt requests at each line. This allows the card to pinpoint failures to exact (IRQ/DMA/DRQ) line.
Exhaustive Testing – P.H.D.’s hardware and firmware design allows for complete testing of every function on every motherboard component. Accuracy and features unmatched by any other product including POST products.
Video Support – On-board video port, allows test results to be viewed on monitor even when systems own video card is dead or missing.
Test Selection – Will automatically run continuous test loops for every motherboard function. Test configuration is available using on-board switches, perfect for complete Burn-In of critical systems.
Flash/ASIC Technology – Uses the latest in Flash EPROM and ASIC chip technology. The card may be upgraded via software, complete upgrade takes less than two minutes. ASICs allow the latest in hardware design for support of the most current systems with highest accuracy and reliability.
Bus/CPU Benchmarking – Accurately measures speed of Bus Signals for performance and compatibility issues. Precisely measures signals such as: CLK, OSC, BALE, RAM Refresh rate. Works on ANY PC equipped with an Intel or compatible processor from 286 through Pentium II/AMD/Cyrix and MMX Technology.
Critical RAM Testing - Tests Critical RAM without using the motherboard installed memory. True low memory testing from address 0 to 1024k. Also tests Gate A-20, memory address / data lines, and refresh circuit.
Base RAM - Performs numerous patterns of tests. Provides graphic display to pinpoint exact location of failure. Plus improved to test the latest EDO, SDRAM, SIMM, PC-100 and PC-133 memory.
Extended RAM - Tests up to two gigabyte of RAM. Users may select the exact starting and ending address with disregard to CMOS settings. Twelve algorithm patterns and graphic mapping identify the exact failing module or chip.
Cache RAM - True cache RAM testing by determining the existence of Cache RAM and the exact amount (up to 2 megabytes). Multiple pattern algorithms are performed for accurate and reliable testing.
I/O Port Monitor - Monitors all I/O ports from 0 to 3FFH, to notify users as to which locations are either used or available. Perfect for resolving I/O conflicts.
Hard Drive - Non-data destructive testing of hard drives. Allows for testing up to seven drives as well as testing of drive controllers. Complete Floppy drive testing with "Cleaning function."
Video - Complete testing of video cards. Automatically tests all video modes for driver conflicts. Provides full video RAM testing.
LPT and COM Ports - Tests all serial and parallel ports. Provide pin-level results of failures as well as selection of internal or external testing. Includes; Loopbacks for each port.
System Board Testing - Continuous loop testing verifies proper operation of CPU, FPU, DMA channels, interrupts, timers, BIOS, keyboard, and other I/O functions.
RTC/CMOS RAM - Tests 7 critical functions of the RTC chip including clock accuracy.
Power Supply – Detects Power Supply problems or fluctuations within +/- 5%. This is extremely critical for newer systems that are sensitive to power supply fluctuations.
CPU Failures - Automatically displays "power up failures" due to Reset or CLK line failures.
Data Logging – All tests results may be routed to a printer.
Burn-In – Allows for testing of specific devices for a period of time. Results may be printed and test script may be saved for later use.
CD ROM – Provides complete testing of EIDE CD ROMs without the need for loading drivers. Tests performed use direct hardware interrogation techniques.
EXTENDED Diagnostics - ALL features in QuickTech 98 embedded in ROM for Exhaustive System Testing.

And Much More...