Hi, I've just removed an RS780 from a motherboard. The notebook, an HP TX2, had no video signal (black screen).

After reballing and soldering the chip back, the motherboard was dead. I noticed that some capacitors in the top are presenting zero resistence (0 ohms in continuity mode).

The capacitors are marked in red:


Is it normal to have zero ohms on those capacitors? Is there a reliable way to test a chip before soldering it to the motherboard?

Chip is dead. Overheat i think.

reballing of this chips - just a waste of time. Replasement. And Only.