[SOLVED]2010 MacBook Pro Gpu capacitor

[macitech]

Hi doing first real logic board component repair.
Replaced capacitor using schematic and your video.
now MacBook Pro 15 2010 in constant reboot.
am I using the wrong part? I believe th cap is proper orientation.
Thanks!
Newbie Rick

 

[MUUK]

It looks ok and looks the right way round. I think that you've knocked off R5413 which is a current sensing double resistor which is normally present (at least on the boards i've done this to) to the bottom left of the replaced cap in your picture.

 

[macitech]

Thanks I dint take a picture before hand, but it does look like a part belongs there. I'll check my schematic.

 

[dukefawks]

Resistor is indeed gone. Do not use hot air for these repairs. Now there is a big chance the balls under the CPU reflowed too....

 

[macitech]

Hi Duke,
Thanks for the advice much appreciated.
I left the heat sync on to protect the chips. Hope the solder under the CPU is ok.
Ill check the schematic to find what resistor to replace it with. R5413

 

[macitech]

Hi Duke
I did a search for the R5413 on other logic boards I have and it comes back with a single resistor.
Can this be ordered off mouser? or is there a substitute search or parts?
Thanks

 

[dukefawks]

You look for a 0.001 Ohm sense resistor, boards are full of them. R5413 is just a number....

 

[jgraffis]

are my eyes going bad or does that cap look a little small for not being a tant cap?

 

[macitech]

Hi Duke,
I asume capacitors will read 1 direction and not the other.
Resistors are Black in color? Caps areBrown or do I have to use schematics.
Using Fluke meter but hard to hold component steady without it flying away.

Thanks

 

[dukefawks]

What are you trying to do? It is not hard to find a 0.001 Ohm sense resistor on a schematic and take it off a board. Take any scrap board and find sense resistors, then look in schematic if it is the same value as R5413.

 

[macitech]

Got it now cause I know what the resistor looks like now.
Your right quite a few on parts board.
Thanks Much Duke!