All 4GB RAM not recognized

[bdooley123]

I recently upgraded my system from 2GB ram to 4 GB, but my bios doesn't seem to recognize all 4 GB.

I have an Epox EP-9NPA+SLI mobo which I recently bought 2 more GB of ram for (I originally had 2GB, now upgrading to 4GB). Though I have 4 1GB sticks in, my startup screen says 3,407,872 K is recognized. I figured it would be over 4,000,000 since it is 4 GB. If I test each stick individually (with the 2GB I already have, for a total of 3 GB), it appears to recognize each stick properly. So 3 sticks shows 3,145,728k, all 4 sticks shows 3,407,872. 3,407,872 minus 3,145,728 = 262,144.

* Here is a link to the 2GB I've had in my system: http://www.newegg.com/Product/Product.aspx?Item=N82E16820227210
* Here is a link to the 2GB I am adding: http://www.tigerdirect.com/applications/searchtools/item-Details.asp?sku=O261-9002

Unfortunately Epox is out of business. I checked my bios version and it is the latest version with what is still available on their website.

I'd greatly appreciate any help.

Bryce

I'm running WinXP SP2.

 

[aberchonbie]

running WinXP SP2 32 bit? cuz if you are, then that's your problem. you'll only realize anywhere from 3-3.75GB depending on your system configuration!

The solution would be to get a 64-bit operating system. you should check compatibility with your current parts and assess whether you really want to reformat your system.

 

[jitpublisher]

^While that is true, if the BIOS does not see all 4 gig, it has nothing at all to do with what OS you are running.
Some older boards you need to enable memory remapping in your BIOS to get more than 3 gig to show up during POST.

 

[bdooley123]

The memory remapping did it. The BIOS now recognizes all 4 GB. This article helped me with the actual task of remapping http://linux.derkeiler.com/Mailing-Lists/SuSE/2006-03/msg02093.html

 

[jitpublisher]

Glad you got it working like you wanted, thank you.