Planning to upgrade my UNIBODY Macbook Pro 15" Ram

[mininoux]

Both will work well ....
I replace my ram last week with 2x2 gb from Crucial work great except on the system profiler show 4 gb and in cs3 and isat show only 3 gb !!!!! i

 

[Rashid Alkaabi]

Both will work well ....
I replace my ram last week with 2x2 gb from Crucial work great except on the system profiler show 4 gb and in cs3 and isat show only 3 gb !!!!! i

Any clue about that? and does OWC Ram owners face the same issue?

Thanks,

 

[yetanotherdave]

Both will work well ....
I replace my ram last week with 2x2 gb from Crucial work great except on the system profiler show 4 gb and in cs3 and isat show only 3 gb !!!!! i

Which laptop do you have? Any over a couple of years old (like mine a 2.0ghz whitebook from late 2006) only officially support 2 gig, unofficially 3 gig.

 

[mininoux]

I have a unibody 15" 2,4 on activity monitor does show 4 gb , i max the ram in photoshop to 3 gb did some work and no problem but i would like to know the reason .

Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.0074.B01
SMC Version: 1.33f8