Macbook Pro last year model 2008 (8GB posible?)

[selice]

Hi there,

does anyone tried to upgrade MacBook Pro 2.5GHz Penron to 8GB? I know that it says 4GB maximum, but technologicaly it should be possible to fit in 8GB?

Cheers.

 

[raymondu999]

Been there. Done that. It's limited in the software. Apple's done some voodoo on the firmware so that it SLOOOOOOOOOOWWWWWWWWWSSSSSSS DOOOOOOOOOOOWWWWWWWWWNNNNNNNNNNNN on 8GB

 

[nick9191]

It can take upto 6gb unofficially I believe.

1 4gig stick and 1 2gig stick.

 

[ayeying]

6GB max currently.
8GB would cause the system to start paging right after 4GB and won't release the paged stuff until a reboot.

 

[Gaelinic]

I thought I read on these boards that the software maxes out somewhere around 3 gb on the Mac? Anything after that is a waste. Am I misremembering?

But, you guys are saying that the current MacbookPros can benefit up to 6gb of memory? I have a 2.4 ghz Macbook Pro (late 2008 model) with 250 gb HD and 2gb of memory. Can mine use up to 6gb of memory? If so, then why do the specs say it can only use 4gb of memory?

Thanks.

Gaelinic

 

[raymondu999]

The one where software s limited to 3GB, that'll be 32-bit Windows. Depending on which gen MacBook Pro you have, the RAM limits are different (hardware-wise)

 

[Cave Man]

I thought I read on these boards that the software maxes out somewhere around 3 gb on the Mac? Anything after that is a waste. Am I misremembering?

The Calistoga MB, MBP, iMacs and Minis with Core 2 Duo processors address about 3.2 gb RAM, while the Core Duo models addressed only 2 gb RAM. Santa Rosa and 9400m MB, MBP take up to 6 gb RAM.

But, you guys are saying that the current MacbookPros can benefit up to 6gb of memory? I have a 2.4 ghz Macbook Pro (late 2008 model) with 250 gb HD and 2gb of memory. Can mine use up to 6gb of memory? If so, then why do the specs say it can only use 4gb of memory?

Yes, yours takes up to 6 gb. Who knows why Apple does the things it does.

 

[ayeying]

Yes, yours takes up to 6 gb. Who knows why Apple does the things it does.

Dual channel. Its both a marketing thing and performance booster.

 

[Patriks7]

Yes, yours takes up to 6 gb. Who knows why Apple does the things it does.

Maybe so that you buy their higher end products that support it? (ie Mac Pro)

 

[selice]

Sweet, so I can get additional 2GB! That will be huge help.

With my current 4GB, running Mac OSX, XP and Win7 is almost impossible, unless you are relly patient.

Thanks heaps guys, hopefully Apple will remove this restriction with Snow Leopard.

 

[Ploki]

Dual channel. Its both a marketing thing and performance booster.

2x4 is also dual channel but doesnt work

 

[NightwalkerUK]

Where in the UK can you buy a 4gb stick?

 

[godaz]

Where in the UK can you buy a 4gb stick?

Im not sure you can at the moment.

 

[ayeying]

2x4 is also dual channel but doesnt work

My bad. I was referring to the 8GB having dual channel. 6GB does not.