Apple MacBook Pro A1286 logicboard 820-2915B

[Pragmatiko]

Hello,
that MacBook working only if i use one ram memory bank slot.
If i use both slot got beep beep ....
Ram module are both working, and i have checked slot with microschope and seem all ok.
From block diagram i see that ram slot are connected directly to CPU.
Anyone got experience?
Regards

[Pragmatiko]

Re: Apple MacBook Pro A1286 logicboard 820-2915B

SOLVED

Done reflow of CPU now it's all ok.

[johnny257]

Re: Apple MacBook Pro A1286 logicboard 820-2915B

hello good am sir. if you dont mind sharing which ic you reheat to solve this issue?

[mon2]

Re: Apple MacBook Pro A1286 logicboard 820-2915B

@johnny257 - what is the fault & history of your logic board ?