problem: ASUS P5GD2-Deluxe mobo

[BrentUnitedMem]

I have put 4 sticks of 1GB DDR2-533 (Samsung original) in the ASUS P5GD2-Deluxe board and the system boots so far, but only registers 3200 MB of addressable RAM.

Any ideas?

 

[BrentUnitedMem]

ANSWER:
Q: When all four memory slots are filled with 1GB of DIMM each, the system will only show 3200 MB of memory instead of 4096MB. Whichever one of the modules is removed, the system will show 3072MB as it should. How could I get 4096MB showed by system with 1GB*4 DIMM installed?

A: If you install four 1GB memory modules on P5GD2 series (or all the other models), the system may only detect a size between 3GB and 4GB, because of memory allocation for the devices in your system per PCI specificaton

source: http://www.asus.com.tw/support/faq/qanda.aspx?KB_ID=1000912

 

[mozzartusm]

So are you saying that it is pointless to have the 4th gig?

To save us both time, assume I know EVERYTHING :tongue:

 

[BrentUnitedMem]

From the explanation I found on Asus web, it's not entirely clear to me.

I believe 800MB is lost. So adding an additional 1GB is pointless.

What do you guys think?

 

[fishmahn]

That's what it sounds like to me - just like in the 8088 days - 640k for programs, 384k for the system.

Mike.

 

[mozzartusm]

I saw the same info you just mentioned. I just got an ASUS P5AD2-E Premium in today so I have been reading through the manual. I would like to know what the answer is even though I dont have a need for that much memory.

To save us both time, assume I know EVERYTHING :tongue:

 

[mozzartusm]

In the manual there is a one page insert that is stuck in the memory section. It doesnt say what problem that it corrects, but it is something that you do in dos just prior to updating the Bios. I dont think that this insert is
included on the Web site yet. Since it is placed in the memory section, I wonder if it has anything to do with this issue?

To save us both time, assume I know EVERYTHING :tongue:

 

[BrentUnitedMem]

3GB will work fine. It's just that 4th stick of 1GB that doesnt get read correctly.

 

[mozzartusm]

I dont know if this is the same issue, but there is an article over at anandtech that has something to do with Windows now being able to handle 4G of RAM. I cant remember for sure where this article is.

To save us both time, assume I know EVERYTHING :tongue: