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quick magsafe question

P

pspiegel

macrumors member
Original poster
Jul 25, 2006
39
0
Hi Everyone,

Quick question, I think I already know the answer but just want to make sure..

Is it OK to use an Macbook Pro 85W power adapter from a previous generation Macbook Pro with a new Penryn MBP?

They both are 85W, the newer one is just smaller.. I am assuming it is just a redesign but both can be used the same way... am I correct in assuming this?

Thanks!
 
Yes, you can use the old one. The new one is smaller due to some optimisation in the transformer, but they are functionally the same.
 
robbieduncan said:
Yes, you can use the old one. The new one is smaller due to some optimisation in the transformer, but they are functionally the same.
Click to expand...

Awesome thanks! For some reason my new smaller one makes a noticeable buzzing noise when it is plugged in, the old ones that I have do not.. Is this a common issue with the new design?
 
pspiegel said:
Awesome thanks! For some reason my new smaller one makes a noticeable buzzing noise when it is plugged in, the old ones that I have do not.. Is this a common issue with the new design?
Click to expand...

It shouldn't 'buzz', normally they're whisper quiet. Have you thought of getting it checked, just in-case? I hate to think something bad might happen - better safe than sorry right?
 
UltraNEO* said:
It shouldn't 'buzz', normally they're whisper quiet. Have you thought of getting it checked, just in-case? I hate to think something bad might happen - better safe than sorry right?
Click to expand...

Yeah probably should get it checked, my local genius already thinks I am cursed though (long story involving multiple machine replacements until I got this one)!
 
the smaller power brick was introduced around august last year, and is the same, but smaller - both do exactly the same thing
and they shouldn't buzz - get it looked at

pspiegel said:
Yeah probably should get it checked, my local genius already thinks I am cursed though (long story involving multiple machine replacements until I got this one)!
Click to expand...
do you think i'm cursed?
i have a mid 2007 macbook pro, and have had the entire keyboard & mouse, top case (the bit with the speaker grills on it), screen & isight, logic board & processor all replaced in 9 months - and i take good care of it!!!
all that remains of the original machine is the hdd, ram and superdrive :)
 
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