Ram Configuration

Question

Level 1

0 points

Ram Configuration

Hi, I bought 4 gigs of new ram for my mac, and they arrived this morning, They are in 4x1gig

I currently have 2x512mb in my pc and was wondering what the best configuration was?

I have heard putting 2x1 gig in riser A and 2x1 gig in riser B then putting the other 2 512mb into Riser B, is this correct?

Mac Pro, Windows XP

Posted on Nov 8, 2007 2:20 AM

Reply

Answer 1

hirris Author

Level 1

0 points

Nov 8, 2007 5:54 AM in response to hirris

Ok, I have solved the question above, but I now have a new question 🙂

I am using Bootcamp and running windows XP, now I know windows XP can only detect 3gigs of the ram (I am going to upgrade to vista soon) but no matter how I configure the ram in my PC it is only picking up 2 gigs, does anyone know why?

Thanks,
Matt.

Reply

Answer 2

Fortuny

Level 7

21,455 points

Nov 8, 2007 6:54 AM in response to hirris

Hi and welcome to Discussions,

you have to edit the boot.ini file.
Here's Microsoft article on that:
http://support.microsoft.com/?scid=kb%3Ben-us%3B833721&x=15&y=12

I have tried it with my Mac Pro and it didn't work with me.

BTW: Vista 32-bit does not change that limit. Only 64-bit Windows will support the full amount of RAM.

Good Luck

Stefan

Reply

Answer 3

hirris Author

Level 1

0 points

Nov 8, 2007 7:18 AM in response to Fortuny

Hi Fortuny and thankyou for your helpful information!

I have read microsoft's article and have not seen what I need to add to the boot.ini, I have already tried adding /PAE but it hasn't worked!

Should I try /3gb ?

And with the Vista thing, will it work if I buy 64 bit Vista? I'm guessing yes.

Reply

Answer 4

Fortuny

Level 7

21,455 points

Nov 8, 2007 7:23 AM in response to hirris

Hi,

the 3GB should be the one.

64-bit Vista works, but unfortunately Apple does not provide any Driver Support for 64-bit Windows.
So, you have to search the Internet for the appropriate drivers and Apple specific hardware (keyboard, iSight, etc.) will not work correctly or at all.

Stefan

Reply

Answer 5

hirris Author

Level 1

0 points

Nov 8, 2007 11:46 AM in response to Fortuny

Ok, I have been trying to sort this out all evening and have done alot of research and reading forums etc, and I cannot get windows to detect more than 2 gigs of ram.

I have tried /pae /3gb /maxmem=4096
everything!

I have made it so Riser A has 2x1gb Ram sticks in it and Riser B has 2x1gb Ram sticks.

Does anybody have a clue how to make this work?

Thanks,
Matt.

Reply

Answer 6

The hatter

Level 9

60,990 points

Nov 8, 2007 12:06 PM in response to hirris

Not XP, but a good article on Vista and 4GB:
http://support.microsoft.com/kb/929605

And this:
http://techreport.com/forums/viewtopic.php?t=51827

Microsoft support:
http://support.microsoft.com/kb/888137/en-us
http://support.microsoft.com/kb/888664/en-us
http://support.microsoft.com/kb/833721/en-us

It takes time, but there are support articles to be found.

Reply