View Full Version : MacBook Pro 4.1 (early 2008 model) RAM Question

3rd March 2010, 07:03 PM

I was trying to upgrade the RAM on a friends MBP 4.1. Currently it has 1 * 2GB in each slot. It is the RAM that came with the machine.

The RAM I have is KVR667D2S5/2G (Kingston RAM). If I install both chips the machine will not boot (no start up chime).

I removed one of the installed RAM chips and installed the Kingston and it booted fine and showed 3GB all up. I swapped them around a few times but I cannot boot with both the Kingston installed.

I tested the RAM in an older MacBook and it worked fine with both chips installed. Looking at the specs for the MBP 4.1 is should take up to 4GB.

Any ideas or it just the RAM and this machine. :eek:


3rd March 2010, 07:58 PM
I think I had the same sort of experience when I upgraded my MBP 4.1 from 2x1GB to 2x2GB.

I ended up taking the RAM back (sorry, can't remember what model it was, but it was Kingston), and buying two sticks from Streetwise. I cost me about $30 more, but it worked.

4th March 2010, 07:01 AM
Thanks, I think maybe that it is Kingston Value RAM it does not like it for some reason.