Question about ASUS A8N-E Motherboard

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OS not showing full RAM

I understand that windows only utilises 3-3.5GB RAM, correct?

I also understand that sometimes graphics cards will take some of the RAM, 512mb for example, correct?

However before I upgraded my graphics card, my system showed 3GB of RAM. I then added the new card hence it went down to 2.5GB - thats fine with me.

I then used all the 4 allotted RAM slots (1GB in each, total of 4GB)

My computer now still just shows that I have 2.5GB, am I wrong in expecting this to be boosted back upto 3GB of RAM as I have put in more physical RAM? (4GB)

I am assuming that as XP will only utilise in my case 3GB of RAM, it makes no difference how much RAM I put in the graphics card will still take a certain amount and as it falls within XP's limits I won't notice anything differnt unless i use a different card?


I have tried putting a simple 2.5GB in my system and with the same card my system shows all the 2.5GB. This would indicate to me that the card was not using sytem meory - it is if something may have broken down at some point as it did once show the full 3GB I initially had.

Sorry a bit long winded but I was hoping someone out there may have some ideas on how to show at least the 3GB again.

Posted by on

  • Drew Mellowship
    Drew Mellowship Dec 08, 2008

    I tried flashing the bios, with a few unexpected results - all sorted now. However, windows still just shows the 2.5GB - it was a nervous afternoon with my system so I will leave it as it is now nice and stable. Better safe n' sound !




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Hi Shibbymusic, as with most Asus boards if not all! The MB
A8N-E does not show all of your 4GB memory. See this FAQ;
Like you, I too have 4GB of memory.
Asus A8N32-SLI Deluxe w/4GB memory only see's 3GB
The bios displays 3GB during boot up & so does windows XP 32bit.
You might want to think about upgrading to 64bit os.
Updating your bios should help as well.
(See A8N-E Bios version 1010);

Thank you for using fixya!

Posted on Dec 08, 2008

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