Re: Can a resistor lose resistance after hot air?

I am going to just order a 43 ohm resistor and place it, I don't understand why the one that came off the board measures 0. Albeit that I havn't been able to trace everything to the detail I would like, it gets pretty messy as especially as it goes to the chipset the three resistors are all in series to their respective pin of the chip and close so I am fairly confident where the resistors go and I cannot reuse the one measuring 0 as it needs to be 43.

Still curious how it became a 0, looked closely for some solder on...

I am curious if a 0402 resistor could go from 43 ohm to 0. In electronics class and my experience a resistor can degrade and gain resistance all the way up to not being able to conduct at all. I have never heard of a resistor decreasing in resistance and becoming 0 ohm or a dead short… that's not the direction they fail… or so I thought.

I was attempting to remove a wson8 chip on an iMac motherboard and it required a lot of heat, on one side of the chip were 3 0402 resistors that were very close. I popped the chip out unintentionally out of the tweezers and sent those resistors...

Re: New Members - please post your introductions here

Hello everyone, I found these forums after searching for Imac motherboard schematics... found them!