Question about Compaq (261671-001) Motherboard

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I cleaned my motherboard (MS6577 ver4) by using a vacuum hose to **** out my VERY dusty my machine! However, after plugging back everything, it won't power on. I don't know why it wouldn't turn on since the vacuum was locate on the ground while the machine was atop my washing machine so the vacuum's motor wouldn't come near the motherboard. Did I demagnetize the power supply? Is it time to "just" purchase a new power supply, or worst yet, will I need to purchase a new desktop to replace what I may have demagnetize? Thanks for your time! Josie Contact:

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First i want to know waht exactly you do but if u take the mobo from the case problably you need to secure that the mobo elect.components are fine if you can power up it you problably do something bad. Did you touch the MOBO with your hands?

Posted on Oct 03, 2010

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Assuming you didn't get the vacuum hose down by the board and accidentally break off or bend one of the components....
I have done the same thing before and the vacuum gets the easy dust that you can see however sometimes it will move the dust but not completely **** it up and it will cause a short on the motherboard. Best thing to do after using the vacuum is to get either a can of air or an air compressor of some kind to get the last bit of dust out that you can't see)

Posted on Oct 03, 2010

  • jicarilla_ea Oct 03, 2010

    Thanks so much for your response! I'll give it a shot tomorrow since I"ve already placed the panels back. I'll keep you updated! Thanks again!

  • jicarilla_ea Oct 03, 2010

    By the way and as a matter of fact... I didn't do anything that would've bent anything (transister, etc.). I've done the vacuum thing so many times but there was so much dust that you can actually plant a tree! That's really no exaggeration. Too bad though. I should've taken pictures before I cleaned it.



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1. Make sure the hose attachment is pushed all the way down into its receptacle. It will click softly when it's all the way down.

2. Detach the hose from the machine. Do this by twisting the grey fitting on the back of the machine. (Note: leave the attachment end of the hose plugged into the machine) Turn the machine on. Hold your hand over the hose fitting. If there's strong suction then there is a blockage in the hose.

3. If not, check in the fitting to see if something is stuck in there. On the back of the machine there is a long clear tube that travels down the back of the machine. Sometimes larger peices of paper get stuck in there. If something is in this tube, take a phillips screwdrive, remove the 7 black screws off and remove the blockage. Reassemble and try the machine.

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