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Tom's Hardware > Forum > Motherboards & Memory > Memory > [Solved] All 4GB RAM not recognized

[Solved] All 4GB RAM not recognized

Forum Motherboards & Memory : Memory [Solved] All 4GB RAM not recognized

Best answer from jitpublisher.

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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/Prod [...] 6820227210
* Here is a link to the 2GB I am adding: http://www.tigerdirect.com/applica [...] =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.

Reply to bdooley123
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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.

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Reply to aberchonbie
Best answer

^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.

Reply to jitpublisher

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 [...] 02093.html

Reply to bdooley123

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

Reply to jitpublisher
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