Difference between revisions of "SVANDUSEN Scratch Page"
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'''1. Prepare -''' Prepare the CPUs as follows: | '''1. Prepare -''' Prepare the CPUs as follows: | ||
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− | + | :a. Place the Pre-test Storage tray on a work surface. | |
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− | + | :b. Place a drop of solvent on the die (solid, metallic, upper surface) of each processor and smear until coated evenly. | |
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− | + | :c. Leave for a minute or so to allow the solvent to work. | |
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− | + | :d. Use a rag to clean thoroughly clean away '''all''' of the old thermal paste and other material from the die. | |
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− | + | :e. Replace the processor in the tray and repeat until all of the processors have been cleaned. | |
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− | + | :d. '''WASH YOUR HANDS!!! -''' It is a '''good idea''' to do this at frequent intervals during all phases of handling these devices since you will be in contact, not only with the devices and the materials they contain, but with chemicals used to clean and prepare them as well. | |
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'''2. Evaluate -''' Evaluate the prepared processors as follows: | '''2. Evaluate -''' Evaluate the prepared processors as follows: | ||
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:::The motherboards for testing the CPUs labeled with the appropriate socket type. | :::The motherboards for testing the CPUs labeled with the appropriate socket type. | ||
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− | + | ::*The sorting table for RAM Testing is ideal for setting up the CPU Test Station. It has an LCD monitor and power cord available for the purpose. | |
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− | + | ::*Assemble the platform with the appropriate motherboard and connect the components '''(be sure to plug in the power supply)'''. | |
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− | + | ::*Unlatch or otherwise remove the Heat sink/fan assembly from the socket and apply a '''very small''' amount of thermal paste to the area that will cover the die on the processor. Smear the paste around to create a thin film. You will need to repeat this from time to time during the testing process. | |
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− | + | ::*On the socket 775 board, it will be necessary to remove the '''Socket Protector'''. | |
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− | + | ::*Select a processor from the Pre-test Storage tray and insert it into the socket. | |
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− | + | :::There will be various visual cues to enable proper alignment that are specific to each manufacturer and socket type. | |
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− | + | :::*Intel socket 775s (a LGA socket) will have two notches on the processor platform that will align with two tabs on the socket frame. | |
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− | + | :::*Intel socket 478s and all of the AMDs (PGA sockets) will have small gold triangles on the processor platforms that will align with similar triangle markings on the socket frame. | |
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− | + | :::*The Intel socket 478s and the AMDs are ZIF (Zero Insertion Force) sockets which means that it should take little or no pressure to get the processor to drop completely into place. | |
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− | + | :::*'''If any resistance is encountered''', a further inspection of the processor should be made to determine whether or not there are any bent pins. Correct as necessary (or possible). | |
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::::*With your left hand, place the Heat sink/fan assembly onto the processor and align it so that it sits evenly. Apply gentle but firm pressure and maintain until the test is complete. | ::::*With your left hand, place the Heat sink/fan assembly onto the processor and align it so that it sits evenly. Apply gentle but firm pressure and maintain until the test is complete. | ||
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− | + | ::*With your right hand, turn on the power switch (make sure the power switch on the power supply is turned on as well). | |
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− | + | ::*Observe the LCD monitor. | |
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− | + | ::::If the small green LED stops blinking and remains steady, this is a good sign. The monitor should soon display a logo screen or a POST screen (if necessary take the necessary steps to get to the POST screen). These screens will vary from manufacturer to manufacturer. This is what you are looking for. This is the indication that the CPU is receiving, processing, and retransmitting data to and from the system. '''The CPU has passed'''. | |
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− | + | ::::If the LED continues to blink, the LCD monitor remains blank, and it is difficult or impossible to shut off the system with the onboard power switch, '''the CPU has almost certainly failed'''. Be cautious, however, particularly at the beginning of a test run. If you are getting an unusual number of apparent failures (even in the middle of a test run): | |
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− | + | :::::Check all of your connections, particularly the 'plus four' from the power supply, and the VGA cable. | |
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− | + | :::::Check the RAM. Try a different stick of known good RAM. | |
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− | + | :::::Retest a known good processor. | |
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− | + | :::::Retest the suspect processor. If the result is still negative, you can have confidence in the result and '''the CPU has failed'''. | |
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− | + | :::::Once you have established confidence in your results, you may proceed without repeating the above steps until another suspected anomaly occurs. | |
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− | + | ::*If the test was successful, label, as shown below, and place in tray to be sorted and either stored or passed along to Online Sales. | |
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− | + | ::*Repeat these steps until the test run is complete. | |
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− | + | ::*Dismantle the test station and return the components to the storage cabinet. | |
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| '''Sorting & Routing''' ||After the testing process has been completed, sort and route the tested CPUs as follows: | | '''Sorting & Routing''' ||After the testing process has been completed, sort and route the tested CPUs as follows: |
Revision as of 15:38, 11 November 2010
CPU (Processor) Testing
SVANDUSEN 19:13, 26 May 2010 (UTC)
CPUs are the "brains of the computer system. This is where all of the information and instructions are gathered from, processed, and redistributed to the other components of the system. The following will be a description of a VERY RUDIMENTARY TEST to determine the viability of a CPU to function in a system. In actuality, there are a multitude of details and issues involved that would take far more space to cover and time to perform than is practical in these circumstances. This is a very basic overview of the essentials that are necessary to get through the process. For more information please consult other experienced volunteers, instructors, or research such sources as Wikipedia or forums on Google.
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