Hi all,

I have a question concerning the memory ram in my Mac Pro. I am using the early 2009 Mac Pro and thinking to upgrade the ram from 2 gb to 22 gb ram. Currently I have 6gb which is 1+2 in first tray and 1+2 in second tray, total 6gb. I am getting additional ram of 16 gb (4 sticks x 4gb per stick). By placing the memory equally in each memory tray, will it yield different result? If I put the following sequence

First tray = 1+2+4+4 = 11 gb in first tray
Second tray = 1+2+4+4=11 gb in second tray

Is the first setup faster? or

Frist tray = 2+4+4 = 10 gb in first tray
Second tray = 2+4+4 = 10 gb in second tray

Better? Please advise. Thank you.

I dont understand. What is the diff between his memory and the one available outside?
Kingston sold by Viewnet,LY is RM104 for 2gb DDR3 1066mhz

This dude is selling;
MUSHKIN XP2 DDR2-1066MHZ(8500) 4GB KIT(2GBx2)-RM360  ?

How much did u pay for yours?

Wow... really ? didn't know of that....
is it hard to DIY on taking out the SuperDrive ?

old MacBook (Not ALU) also can ?

1 dude your mac can only support DDR2 667 cannot put any other specification

2 any brand would do,even kingston value rams

3 theres no such thing as a 3GB memory module its 1,2 and 4Gb,go with the 2x2GB configuration.

4 again just get the ram and DIY,can get the manual from ifixit or apple.com,easy.

Question regarding RAM upgrade:

I have a MacBook Pro (Early '08) 2.4GHz and tried to upgrade to 4GB. I bought Kingston KVR667D2S5/2G x 2 sticks.
The funny part is I can't boot up (screen blank) with either stick individually or paired. But it works fine if I put the existing 1GB + new KVR667D2S5.
Can anyone tell me what is the issue? I read somewhere that MBP prefers kingston certified RAM, I think the code is MB.. something.
But I was browsing thru forums and saw number of people had no problems with this ram model?

Thanks.

@jinaun,
I once had a very unscrupulous dealer servicing my Macs (for the office).  He would charge us KTA RAM prices but give us rubbish RAMs.  When I finally found out and checked, I sacked him immediately and told all my known associates about his doing.  I think I've got Hyundai RAMs or well the RAMs actually had this Hyundai stickers.

I had such people.  Just cause I'm female they think I know nuts about KTA and KVA RAM.  It's a good thing I switched from Windows to Mac so they couldn't cheat me anymore!