820-00165 - Did I kill the CPU

[rvanpruissen]

Hi,

Had some sensor issues with this one so I decided to replace U5800. After I replaced it, it doesn't boot anymore. I'm guessing I fried the CPU, which is right on the other side of the board. Any suggestions?

Cheers, Rick

 

[jgraffis]

first things first. check the surrounding area where u worked. Then go back to the basics check power rails.

 

[rvanpruissen]

All the S0 voltages are present but I'm getting no chime and no video. Any suggestions?

 

[dukefawks]

Probably fucked it, take U5800 off and pray it will work again. If not CPU may be dead or balls got crushed/separated.

 

[rvanpruissen]

Hmmm... Any suggestions for when I try this next time? So replacing U5800 without screwing up the CPU?

 

[dukefawks]

Use less heat, practice more. There is no golden tip for this. Also a dead U5800 never happens, usually something else on the data bus is messing things up. Corrosion on connectors and SMC are the most likely.