Question 1

Will this fit in a macbook pro?

Accepted Answer

No, this is desktop memory. Macbooks use SO-DIMM modules, which are smaller, and are common for laptops.
Apple has the exact specifications for a given year's Macbook available on their support website.

Question 2

Will this work with a m2n68-la motherboard?

Accepted Answer

It should be compatible.  Here's a copy of the memory upgrade information for the M2N68-LA:

Dual channel memory architecture
Two DDR3 DIMM (240-pin) sockets
Supported DIMM types:
PC3-8500 (DDR3-1066)
PC3-10600 (DDR3-1333)
Non-ECC memory only, unbuffered
Supports 2GB DDR2 DIMMs
Supports up to 4 GB* on 32 bit PCs
*32-bit operating systems cannot address a full 4.0 GB of memory.

Question 3

Will this work with Dell XPS 8700?

Accepted Answer

Short answer - probably should not try it.  The Dell XPS 8700 comes with memory that has a speed of 1666 mHz as opposed to the Corsair that has a speed of 1333 mHz.  It will probably work but might not give the same performance as the original machine.

Question 4

have same memory only at 4x4gb if get a faster speed 2x8 and run other two at 1333 system with run at slower ones correct? then get same other two faster ones later

Accepted Answer

Yes, that is correct.  It is not advisable and may have errors on startups depending on the BIOS, but it will not harm the RAM if you can live with the occasional error.

Question 5

Compatible with Macbook pro late 2011?  1333 MHz DDr3

Accepted Answer

Yes, but be sure you are purchasing notebook ram.  The ram pictured next to this post looks like desktop ram which is physically larger and will not fit in a laptop pc.

Questions & Answers