Difference between revisions of "User:SVANDUSEN"
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::*A row of column headings will appear about halfway down the screen and extend all the way across. Only '''"WallTime"''', '''"Cached"''', and '''"Pass"''' are relevant. | ::*A row of column headings will appear about halfway down the screen and extend all the way across. Only '''"WallTime"''', '''"Cached"''', and '''"Pass"''' are relevant. | ||
− | + | :::'''WallTime''' indicates how much time has elapsed since MemTest began. | |
− | + | :::'''Cached''' indicates how much total RAM has been loaded onto the board. | |
− | + | :::'''Pass''' indicates what pass the testing process is on. | |
'''5. Monitor MemTest''' | '''5. Monitor MemTest''' | ||
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:::::The most common indicator of failure. | :::::The most common indicator of failure. | ||
− | :::::The bottom half of the screen turns red, | + | :::::The bottom half of the screen turns red, a new set of column headings appears, the section fills with data and '''may''' begin scrolling rapidly. '''See Remedies.''' |
:::::Usually occurs within the first two tests of the first pass but may, occasionally, happen much deeper in the testing process. | :::::Usually occurs within the first two tests of the first pass but may, occasionally, happen much deeper in the testing process. | ||
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:::::Unfortunately ... it's strictly trial and error from here on. | :::::Unfortunately ... it's strictly trial and error from here on. | ||
− | ::::*Power off at the switch on the power supply. | + | ::::*Power off at the switch on the power supply.*First, make sure that the bluetooth USB dongle is plugged into your testing computer. |
+ | *This is where you will need to find out how to pair the device, try googling 'how to pair *make model #*'. Once the device is in pairing mode open bluetooth preferences (System>Preferences>Bluetooth) and select 'add new device...' proceed until it has you select detected devices at which point you should see your device, highlight and continue. | ||
+ | *The device should now come out of pairing mode and should appear in the bluetooth preferences window with a paired icon present (lookes like a plug in a socket just to the right of the listed device name). | ||
::::*Remove the suspected stick or sticks, singly or in pairs. | ::::*Remove the suspected stick or sticks, singly or in pairs. | ||
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::::*If something other than a bad bank or banks is suspected, ie. video or network issues, ask an instructor. | ::::*If something other than a bad bank or banks is suspected, ie. video or network issues, ask an instructor. | ||
− | + | '''6. For the duration of the testing process - ''' | |
− | :: | + | ::*'''Check on the progress of the testing process.''' |
− | ::: | + | :::The time necessary to complete the testing process can vary greatly, depending on the capacity and speed of the RAM that has been loaded, the FSB (Front Side Bus) speed of the CPU or other factors specific to the test board. The time can be less than one hour, with low capacity and/or high speed, or can take an incredibly long time with high capacity and/or low speed (eg. 2 GB of SDRAM at 133 MHz can take nearly 24 hours). Generally an average load of around 1 GB of DDR or DDR2 will take between 2.5 and 3.5 hours. |
− | ::: | + | :::A complete testing process consists of three passes, labeled 0-2. |
− | ::: | + | :::Each pass consists of eight tests, labeled 1-8. |
− | ::: | + | :::MemTest will continue to run indefinitely until is manually discontinued. |
− | ::: | + | :::If the pass number is '''3 or greater''', the testing process is complete. |
− | :: | + | ::*'''Watch for indications of failure, as indicated above, and correct as necessary.''' |
|- | |- | ||
− | | | + | | '''Label & Route''' || |
− | + | '''1. Label -''' | |
− | + | '''Remove the tested RAM from the test boards | |
− | |||
|- | |- | ||
| Configure Device for Input/Output || | | Configure Device for Input/Output || |
Revision as of 14:17, 7 July 2010
RAM (Memory) Testing
SVANDUSEN 19:13, 26 May 2010 (UTC)
RAM is a deceptively simple device to test. It appears to be simply a matter of gathering, sorting,loading,removing, labeling, and storing; repeated over and over again. In actuality, there are a multitude of details and issues involved that would take far more space to cover than is alloted here. 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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