I am looking for some suggestions of things to try in order to diagnose a bad motherboard that gives a beep code error during POST. In particular, if I have an identical working board, can running the two side by side or other types of comparisons help me zero in on the problem?
Some details: These are laptop MB's with soldered CPU/GPU. The bad board's error code is six beeps a few seconds after turning on the machine, and this is an AMI bios. At least, I think it is six beeps...they come in two groups of 3 each. I inspected the bad board by sight, and there is no visible damage to any of the components. I also tested most capacitors for a short circuit thinking that this might be an issue, but did not find any. The only way to have something different happen is to take out all the RAM; in that case, there is a single long beep.
Any suggestions would be appreciated.
Some details: These are laptop MB's with soldered CPU/GPU. The bad board's error code is six beeps a few seconds after turning on the machine, and this is an AMI bios. At least, I think it is six beeps...they come in two groups of 3 each. I inspected the bad board by sight, and there is no visible damage to any of the components. I also tested most capacitors for a short circuit thinking that this might be an issue, but did not find any. The only way to have something different happen is to take out all the RAM; in that case, there is a single long beep.
Any suggestions would be appreciated.