Compaq Presario Won't Turn On Fix

I recently acquired a second hand presario 1200 (model 12xl300) from a frustrated owner who could no longer get it to turn on, just had the green light when the power pack was plugged in. After completely disassembling the computer and removing and inspecting the mother board, it was evident the problem was the power jack attachment to the board. In a previous thread, a poster had described this point as a cold solder joint and had temporarily fixed it by re soldering. The problem is that it's more like a no solder joint. The circuit board area that should receive solder to mate to the rear lug on the jack is covered with the green protective coating to prevent solder adhering. The only exposure is the edge of the hole which only allows a few thousandths of an inch exposure to solder. The jack is then straining against this minute connection every time the power supply is plugged in. As the joint fails, less and less power is able to be transmitted through it until none can be. The fix i made was to use a dental pick the chip off the coating to the bare copper around the lug. This is pretty delicate work and the copper can be easily damaged. Then i re soldered, again delicate work since direct heat to the board can delaminate it. Next i put a drop of super glue between the jack body and the board to try to eliminate any flexing when the power is plugged in. The computer works flawlessly now. In my opinion, this is decidedly a manufacturing defect that should have been caught by inspection of the boards prior to assembly, or certainly after the solder process as very little solder was adhering to the joint. These boards are manufactured in large batches, and there must be many that have failed in warranty or are in the process of failing. Again, in my opinion, it's inconceivable that hp/compaq is unaware of this defect.

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Compaq Presario V5000 Will Not Turn On

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I got this info from crucial if this helps:

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Currently installed memory: 1gb

Available memory slots: 2

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http://h10025. Www1.

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