extra ram for MBP

iraiguana · 7 Mar 2008 at 18:10

Hey guys,

noob question, but I installed 4GB of RAM in my MBP but it is only registering the 3.5GB. I assume this is due to a 32bit set-up, is there a way of switching it to 64bit or am i being silly ?

Thanks for your help

J1234 · 7 Mar 2008 at 18:29

What MBP is it?

iraiguana · 7 Mar 2008 at 23:31

Its one of the new intel ones from jan 08

kilvano · 8 Mar 2008 at 00:05

If it has tiger then it may only recognise the 32-bit limit but if its leopard then that should recognise the full whack.

electric ant · 8 Mar 2008 at 09:45

Tiger should still recognicse 4gb, which processor have you got in your MBP?

pumaz · 9 Mar 2008 at 15:23

You've not booted up in 32bit Windows by any chance?

ironman · 9 Mar 2008 at 17:53

As a side note, 4gb of ram is only £76?! I paid £110 for 2gb for my MacBook a year ago!

bimmerboii · 12 Mar 2008 at 17:06

how many ram slots does the new MBP 15" 2.5GHz have?
the one I ordered has 2gb ram and I wanted to know if I should buy another 2gb or go for the 4gb kit?

electric ant · 12 Mar 2008 at 23:25

bimmerboii said:
how many ram slots does the new MBP 15" 2.5GHz have?
the one I ordered has 2gb ram and I wanted to know if I should buy another 2gb or go for the 4gb kit?

Id assume it would be the same as the old MBPs, i.e. 2 ram slots

MagicBoy · 12 Mar 2008 at 23:39

4Gb kit then...

bimmerboii · 13 Mar 2008 at 00:21

cheers for the replies. did some research too.. the new mbp have 2 slots.. if you ordered the stock 2gb mbp, it will be 2x1gb kits.. so if you want to upgrade the ram the only option is to get the 2x2gb kit.

Sherm · 15 Mar 2008 at 21:31

Just as a side thought, i have 2gb of ram at the moment, does going to 4gb make that much difference on the mbp? i have the 17" 2.33ghz version.

ta

electric ant · 15 Mar 2008 at 22:31

Well I have just upgraded to 4gb yesterday (2.2ghz MBP). In normal usage proly youre not gonna notice much difference, but once i had vmware fusion running XP, photoshop, itunes, firefox,mail, adium etc all running at once thats where the 4gb really comes in useful as theres no slowdown anymore when switiching between apps.

So in summary, open up Activity monitor, if you see a lot of page outs and you freqeuntly find yourself with very little free ram then its gd to upgrade. Its pretty cheap anywy so if you need it go for it!