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hellbent

macrumors newbie
Original poster
Aug 29, 2008
17
0
ok so i just swapped out my stock 250gb hd for a new western digital 750gb 7200rpm drive. It works fine, it boots up, and has all my files on it, but its really laggy. Its not a constant lag, but instead it will be completely fine for 5-10 minutes and then freeze for 1-2 minutes. It gets really bad especially when i watch a movie on itunes. This really doesn't make sense to me, I had been using it as an external drive in an enclosure for a few months prior to installing it, but i dont see how that could be an issue. It also seems to occasionally make a slight buzzing noise...any ideas?
 
From what I have experienced and read here,

Is this on Lion? If so, it may be indexing for a little while.

Some people experience buzzing/movement from the laptop when installing a 7200 rpm hard drive, some don't. I personally have installed a Seagate Momentus XT drive and have yet to experience any issue with the hardware.

If the buzzing bugs you, return the drive and grab a different one.
 
hellbent, try downgrading your EFI firmware, please follow the link in my previous post.
 
ive looked into downgrading my firmware, but i cant find where it say how to do it. How do i go about downgrading it?
 
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