Hey guys,

I have a p-171fx gateway laptop that is running 10.6.3 Vanilla, everything is 100% working. The problem is that I had 1.5gb of stock ram (yea lol seriously). Inside I had a 512 and 1gb of samsung 5300 667mhz and I upgraded to 2x2gb crucial ram that is also 5300 667.

I installed the new ram and OSX now just hangs on the white apple loading screen with no progress circle. I tried -s / -v and it got stuck on the same spot. usually mac checks my cd drive and HDD next but instead it just sits on the white screen doing nothing.

I then tried following:

1. only using 1 of the new sticks - no go
2. using both sticks - no go
3. mix matching new and old sticks - no go
4. old sticks - Works Fine

I have tried the same with Windows (different hdd same system) with the same four setups and all work


Guys, any help is greatly appreciated here and I have tried to search the internet but couldn't find any real leads on what's wrong.

Update 1: I've been reading tonight and I was wondering do I need to update / change my SMBIOS info on memory (manf, serial, size) ?