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DxDiag only showing 3200MB RAM

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March 20, 2011 12:15:23 AM

Hello, I have 4GB of RAM installed on my motherboard. However, when I run DxDiag, it's only displaying 3.2GB of RAM. Could it be that my bios needs to be upgraded in order to detect the full 4GB? I am currently using the default system bios. I have an AMD Athlon II X4 640 Processor 3.0GHz, and an ASRock M3A770DE Motherboard.
a c 196 V Motherboard
March 20, 2011 12:26:31 AM

Do you have a 32bit or 64bit operating system? A 32 bit OS can only "see" 3.25GB of RAM so likely that is your problem.
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March 20, 2011 12:33:52 AM

I am not sure what bit operating system I have (I've been told, if I don't know, then I probably have a 32bit OS), but when I check system info, DxDiag, EVEREST, System Information for Windows, etc. it does not indicate what bit my OS is, it simply says "Windows XP Professional Service Pack 3".
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a c 196 V Motherboard
March 20, 2011 12:36:01 AM

64 bit XP was quite rare so I am pretty sure you have a 32bit version. No worries 4GB will still help even if the OS can not see all of it.
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March 20, 2011 12:42:31 AM

Best answer selected by cole4722.
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March 20, 2011 12:47:57 AM

anort3 said:
64 bit XP was quite rare so I am pretty sure you have a 32bit version. No worries 4GB will still help even if the OS can not see all of it.


Thanks for the info, that was really helpful as well as relieving.
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a c 196 V Motherboard
March 20, 2011 12:49:53 AM

Glad I could help.
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March 20, 2011 1:02:06 AM

anort3 said:
Glad I could help.

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a c 196 V Motherboard
March 20, 2011 1:11:55 AM

Ask away. I will help if I can.
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March 20, 2011 1:43:10 AM

Is there any way to install windows 7 on my computer, whilst only having 1 hard drive with windows xp already installed on it? Like upgrade?
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a c 196 V Motherboard
March 20, 2011 1:49:39 AM

I would do a clean install. Back up everything you need to keep to an external drive or a thumb drive or even a DVD or CD and then do a clean install of Windows 7 64 bit. There is no upgrade path from 32 to 64 bit.
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March 20, 2011 1:59:27 AM

Okay, thanks. Is backing up different than "copying and pasting" all the files I want to keep? And, would I be able to keep my program files (my installed games) / would they be playable after I transfered them back after Windows 7 was installed?
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a c 196 V Motherboard
March 20, 2011 2:20:15 AM

Backing up is just copying and pasting correct. Like any music or pictures you have. You would have to reinstall all your programs.
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March 20, 2011 2:24:34 AM

Ahh. Okay, gotcha. That's exactly what I figured, I just wanted to confirm. Thanks so much for all the help. It's much appreciated. I now know what I must do to run Direct x 11.
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a b V Motherboard
February 23, 2012 7:28:30 PM

This topic has been closed by Mousemonkey
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