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4GB RAM on Windows XP 32

post #1 of 10
Thread Starter 
If I were to install Windows XP 32 on a system with 2x2GB modules...
Does it read only 3GB or does it not work at all?
Any other issues?

Thanks.
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post #2 of 10
It only detects about 3 gigs of it.
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post #3 of 10
You need a 64bit OS to use all 4GB of your ram.
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Boxxy Minaj
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post #4 of 10
Mine reads 3.25gb.
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post #5 of 10
Ya like others you might see 2.75-3.50 gigs really depends on differt video cards and motherboards on how much xp sees.
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SABERWOLF
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XEON-WOLF
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post #6 of 10
It should read 3.5GB or 3.2GB. If you want it to read all of it you need 64Bit OS.
 
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2 x Scythe Gentle Typhoon AP-15 120MM fans 4 x Enermax TB Silence Red 120mm fans 1 x Coolermaster 200mm fan 1 x Coolermaster 140mm fan 
CoolingOSMonitorKeyboard
1 x Coolermaster 120mm fan Windows 10 Pro 64 Bit ASUS VG248QE 24" 1920x1080 144hz Corsair Strafe RGB Cherry MX Silent 
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post #7 of 10
Yes, 3.5GB-3.2GB in a 32 bit OS, and you will see your full 4GB of ram in a x64 bit OS.
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post #8 of 10
Mine reads 3.25
post #9 of 10
I never thought about this because I never had enough ram to fill up those slots, I had no idea you needed a 64-bit OS to just use higher RAM. I suppose thats how you get the magic 8gb number then?
Who makes quad slot mother boards? I don't remember if the new Nvidia one has enough room or not.
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post #10 of 10
Check to see if you have PAE installed on your CPU using CoreInfo, The * character indicates that are included and the - character indicates that are not included, Download now: https://www.dropbox.com/s/vm3jlukggapan1e/CoreInfo.zip?dl=0

Run set.bat then copy all of the text to the Text box of Reply at the end of the page.

If PAE is enabled on your system, Get 64-bit, If PAE is compatible but it's disabled, Go to Run and then type "NOTEPAD C:\BOOT.INI" and press Enter, On the [operating systems] part, You should see this:

multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect

Change it to:

multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect /pae

Then save it in CTRL+S, Restart your computer, After restarting, You should see in System Properties main menu PAE on the bottom of the RAM: Physical Address Extension, like this:



If your CPU does not support PAE, while your CPU gets a 64-bit, Get a 64-bit OS.
If your CPU does not support PAE, and not support a 64-bit, Get a newer OS.
    
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ASUS CD-S520/A4 Windows XP Professional 32-bit SP3 V193W (1440x900@60Hz) TECH-COM SSD-KB-805 
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