RAM allocation

ronlau9 · 12-20-2008, 09:48 PM

I did download a new iso image 64 BITS PC burn it on a NEW CD
The command uname -a give now as a output :
Linux Linux-n472 2.6.27.7-9-default #1 SMP 2008-12-04 18:10:04 +0100 X86_64 X 86_64 X86_64 GNU/Linux
But as a stated before the amount RAM is still 3.3 GB
AS I am a human being I do make mistakes sometimes but NOT TWICE the same.

lazlow · 12-20-2008, 11:01 PM

Ok, assuming your motherboard is really a P5LD2-X/1333 and not the one you listed, on page X of the manual it says that it is only rated for:

Quote:

2 x 240-pin DIMM sockets support unbuffered non-ECC
Memory
DDR2 400/533/667 memory modules
Supports up to 2 GB system memory

Which would indicate to me that this is another example of Intel using a 32bit memory controller on a 64bit motherboard. Which (memory wise) means that no matter what OS you are using(64bit or 32bit) your are going to be stuck with the 32bit limit.

ronlau9 · 12-20-2008, 11:34 PM

No my manual only says if you use windos 32 Bits it is not recommended to use more than 3 GB
And the BIOS do stated that there is 4 GB but that 640 MB is appropriated (what ever this means)

lazlow · 12-20-2008, 11:45 PM

I just went to the Asus and grabbed the manual of the model I specified(since they do not list the model you specified) and what I quoted was cut and pasted directly from that manual(the page number was the Roman number X). Intel using the 32bit memory controller(on certain chipsets) is a well documented and there are probably a dozen thread on this forum along that discus it.

Edit: Here is the link to the download page for the manual: http://support.asus.com/download/dow...Language=en-us

ronlau9 · 12-21-2008, 02:40 AM

Do not neat to download the manual as I buy the computer a few months ago as brand new one I do have the manual and
the computer shop assembled it according to my wishes.
And at that time he already advice me to use at least 4 GB of RAM

jay73 · 12-21-2008, 02:57 AM

If it is an ASUS mobo, you may need to enable memory mapping. Check your BIOS.