Buying a new logic board?

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
Hey so i just bought a coke spilled macbook 2008 from ebay..opened it up and its soaking in isopropal as we speak but i must admit it isnt looking good..

i am new to macs so i was just wondering which part to buy.. i have the late 2008 model A1278 but when im looking for logic boards online i see mid 2010 models etc. with the same model number as mine.. question is will the mid 2010 work with my 2008 model or what? :confused:

Im slightly confused why they use the same model number on different years

Please help me out!
 

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
thanks what do you think my chances are of getting this working ?

the spill happened 3 months ago and main damage is under the processer and graphics chip.... it was coke that was spilled on it :?
 

JHUFrank

macrumors 6502a
Apr 16, 2010
645
54
I think chances are low, but not totally lost. The motherboards are still pretty high on this model, you may end up with a little more invested than you thought.
 

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
thanks for replying , first attempt at booting failed , still no signs of life, but i am not giving up yet..! , can a macbook boot without thermal paste on the heatsink?
 

logana

macrumors 65816
Feb 4, 2006
1,385
1
Scotland
thanks for replying , first attempt at booting failed , still no signs of life, but i am not giving up yet..! , can a macbook boot without thermal paste on the heatsink?
It won't stop it from booting but I wouldn't let it run for very long though....

Is there any sign of life - does the fan run ? Does it charge ? Does the Magsafe have a bright led ?

Coke is probably about the worst thing you could get on the board - 99% chance of complete failure....
 

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
no noises whatsoever :(

im still waiting on the magsafe charger to arrive so im hoping its just the battery is dead,it should arrive tomorrow anyway , but mannnn logic boards are so expensive
 

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
scratch that! i now hear the macbook making a loud beeping i can hear the harddrive loading but no picture, just beeping as if to indicate something is wrong ....PLEASE TELL ME THIS IS A GOOD SIGN
 

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
i dont mean to spam but I GOT IT BOOTING :) Everything except the screen is working , i used the mini display to hookup to my monitor and trackpad and keyboard even work! i cant seem to get the wifi working properly though..it detects my network and connects but no webpage displays in safari .. camera is also working.

im pretty sure its just the screen cable thats the problem

is there supposed to be a notch cutout where the pins are pn the display cable?
 

Robert Davies

macrumors 6502
Jul 28, 2011
316
3
People's Republic of Wrexham
i dont mean to spam but I GOT IT BOOTING :)it detects my network and connects but no webpage displays in safari.
Try a network cable to see if the error is still there. Sounds more Operating System/router (firewall) related than Airport card.

is there supposed to be a notch cutout where the pins are pn the display cable?
I'm not quite following you... There'e a cutout between the two rows of pins at one end of the connector on mine - if that helps.

Re: the screen - If you haven't already, go to iFixit.com and checkout screen replacement to make sure the relevant connectors have been de 'coked'.

Incidentally I brought a PowerBook G3 back to life back in the day after a 'coca cola incident' by soaking the dismantled boards in water for a while - ended up replacing the keyboard, but everything else worked A-OK afterwards.

-Rob
 

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
it took about 5 overnight soaks in iso alcohol ,just scrubed the display connectors again there...

i couldn't believe it when it booted the other night :p

best feeling on earth!
 

logana

macrumors 65816
Feb 4, 2006
1,385
1
Scotland
The screen problem is likely to be a blown capacitor that looks like a fuse on the motherboard.

Google it and you should find it - or there is a thread on the MacBook Pro forum here in with lots of mentions...
 

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
The screen problem is likely to be a blown capacitor that looks like a fuse on the motherboard.

Google it and you should find it - or there is a thread on the MacBook Pro forum here in with lots of mentions...
ok have looked around and it sounds like gibberish to me :/

haha , is it fixable? i know everything else is working now so i wouldn't mind THAT much if i was to just get a new logic board

when i press power the screen does flash for a split second but just dies after that, what do you think?
 

videogamingtown

macrumors newbie
Original poster
Mar 22, 2012
12
0
after closer inspection i can see the screen is working when i put a flashlight on it.. its just the backlight so im assumed that that fuse is actually blown.. problem is it is beyond my skills to repair something that small and i have never soldered in my life... it seems like this is the only issue remaining now that i know that it is booting and have tested everything else, guess im on the lookout for a logic board repair guy to solder the new fuse.. Thanks for your help guys really appricate it! and will let you know if i can repair it! :)
 

r0k5t4r

macrumors newbie
Apr 10, 2012
4
0
Hi,

Im just facing the Same Situation. EBay Mac Book 2010 water Spill. I can't tell when the damage happened but I have already started to test a few things on the logic board. So far I can tell the mag safe lights green and I can see there is power using a multimeter on the power on pads. I disconnected everything except ram, the dc in board, the speaker and the fan. I hear no noise and also the fan doesn't spin when trying to shorten using the power on pads. The voltage on the power on pads is 3.42v. Any ideas. I have placed the logic board just beside the macs unibody to test. Maybe it has to be grounded with the unibody? I'm not an expert on macs as this is my first one but I can test motherboards like that just fine. I'm thankful for any hints.

Regards
 

tanzania dave

macrumors newbie
Nov 9, 2013
1
0
me too.

Hi,

Im just facing the Same Situation. EBay Mac Book 2010 water Spill. I can't tell when the damage happened but I have already started to test a few things on the logic board. So far I can tell the mag safe lights green and I can see there is power using a multimeter on the power on pads. I disconnected everything except ram, the dc in board, the speaker and the fan. I hear no noise and also the fan doesn't spin when trying to shorten using the power on pads. The voltage on the power on pads is 3.42v. Any ideas. I have placed the logic board just beside the macs unibody to test. Maybe it has to be grounded with the unibody? I'm not an expert on macs as this is my first one but I can test motherboards like that just fine. I'm thankful for any hints.

Regards
Did you ever get yours to work? I have the same situation. 3.4v on power on pads, magsafe light green. Battery light flashes four lights. I'm thinking if the original poster soaked it for a couple nights in iso alcohol I could soak it again. I've only done it two or three times. But if you did something else, let me know!