Member |
 |
| Posts
:
1 |
| Level
:
|
| Tech Points
:
0 |
| From:
Italy |
|
Posted:6/25/2007 3:15:00 AM |
|
Hi,
I have a question about Memory and my P5B-E. I have 4 RAM Card 1 Gb, but my system detects only 3 Gb. Why this? (I'm sure that all the cards works well).
Thank you in advance.
|
|
|
|
Member |
 |
| Posts
:
27 |
| Level
:
|
| Tech Points
:
2 |
| From:
Canada |
|
Posted:6/25/2007 8:24:00 AM |
|
Only 64 bit operating systems will recognize anything over 3ishsomething gigs. If you want to use more you need to upgrade to a 64 bit OS.
READ THIS!
|
|
|
|
Member |
 |
| Posts
:
2 |
| Level
:
|
| Tech Points
:
0 |
| From:
Netherlands |
|
Posted:6/27/2007 2:03:00 AM |
|
I installed 4x 1gb of kingston CL4.0 pc6400 ram today. I know some operating systems have trouble with a certain amount of memory, but in the bios it already says there are only 3 gb installed... Am i missing someting, i thought this board supported up to 8 gb?
|
|
|
|
Moderator |
 |
| Posts
:
4923 |
| Level
:
|
| Tech Points
:
216 |
| From:
United States |
|
Posted:6/27/2007 2:10:00 AM |
|
64-bit OS support 8GB of memory.
32-bit OS support 4GB of memory. But what will be used will be less. The video memory and dedicated memory applications for other Hardware will be subtracted from the 4GB.
|
|
|
|
Member |
 |
| Posts
:
2 |
| Level
:
|
| Tech Points
:
0 |
| From:
Netherlands |
|
Posted:6/27/2007 2:15:00 AM |
|
thx for the quick response. my problem is, the bios doesnt see the 4gb either. i think i have the same problem as Bowen in this topic http://vip.asus.com/forum/view.aspx?id=20070429002147187&board_id=1&model=P5B-E&page=1&SLanguage=en-us
i need to enabele "memory remap" in the bios.
|
|
|
|
Moderator |
 |
| Posts
:
4923 |
| Level
:
|
| Tech Points
:
216 |
| From:
United States |
|
Posted:6/27/2007 2:21:00 AM |
|
| What amount does the BIOS detect if you remove 1 stick?
|
|
|
|
Member |
 |
| Posts
:
1 |
| Level
:
|
| Tech Points
:
0 |
| From:
Australia |
|
Posted:6/28/2007 9:55:00 AM |
|
HI
I have same problrm with 4 x 1G of DDR2 667 Ram, I see 3G in BIO and Window. While I put 1G Ram one after one, it correctly shows till 3 x 1 Gb but not 4G, it is the same even I updated with latest BIO.
|
|
|
|
VIP Member |
 |
| Posts
:
3 |
| Level
:
|
| Tech Points
:
0 |
| From:
United States |
|
Posted:6/28/2007 12:19:00 PM |
|
's post regarding the MSDN post only tells part of the story. The ASUS motherboards will not recognize over 3 GB of memory no matter what unless memorry remapping is enabled. This is a bit odd, as the Intel specs state that memory remapping only needs to be enabled for over 4 GB of memory. However, let's say that the P5B-E did allow you to enable all 4 GB of memory. In a 32-bit operating system, you should expect to see less than 4 GB of memory because of other devices (see the MSDN post). Unfortunately, on the P5B-E, if you enable memory remapping, Vista will only detect 2 GB of memory--the other 2 GB are mapped above 4 GB.
In short, you cannot use more than 3 GB of memory in 32-bit Vista due to the nature of the P5B-E motherboard. If you want more than 3 GB of memory in 32-bit Vista, switch to a different motherboard from a different vendor. Keep in mind that you will never see all 4 GB of memory in 32-bit Vista. If you want 4 GB of memory or more, you need 64-bit Vista.
|
|
|
|