It's running from the inductor for the PP3V42_G3H power supply to the RAM slot. The inductor is part of the DC to DC voltage step down circuit that turns the 18.5v of the charger, or the 12.6v of the battery into 3.42v for the PP3V42_G3H rail, which is used for the onewire circuit and a bunch of other small bits and pieces of the laptop. The inductor stores power used for the rail before it is smoothed into a nice, even 3.42v by the capacitors in front of it.
Since PP3V42_G3H is not a power rail used on RAM, it was probably run by an idiot that thinks he can fix motherboards. Does it end at that plastic piece on the RAM slot? Is anything wrong with this motherboard? Was it previously spill damaged?
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4
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It's clearly a trace patch. But, from what to what? It looks like its on one of the solder pads of the transformer and loops up to the memory module connector where it appears not connected to anything, seems odd ...
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0
Does it connect to a component on the other side?
crwdns2934271:0crwdnd2934271:0 oldturkey03 crwdne2934271:0
Please give us a history of the machine
crwdns2934271:0crwdnd2934271:0 mayer crwdne2934271:0