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Posted on Mar 01, 2011
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Manual says ASUS F5RL supports a maximum of 4GB But BIOS view only 3GB How make that BIOS view 4GB?

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1. Only the 64 bit operating systems "see" 4GB of RAM. If you're using any 32 bit system, it is only able to address 3 GB therefore the remaining 1 GB is not being used.
2. If you are using a 64 bit system, such as Vista 64, Windows 7 64 or any Linux x64; you might need to upgrade your BIOS first.

a.) go to http://support.asus.com/download/download.aspx?SLanguage=en-us
b.) on the left side, in the search field, type your laptop model
c.) select your laptop from the search results list; select your operating system and go to BIOS section and download the most recent BIOS image.
d.) go to BIOS utilities section and download the "Windows BIOS Flash Utility"
e.) use the "Windows BIOS Flash Utility" to upgrade your BIOS. Be extra careful when doing it. Make sure your battery is fully charged and that you're plugged in. Close all other applications when upgrading your BIOS.

3. If you still see only 3GB after upgrading BIOS to the newest version, there is only one thing left to do - wait for the manufacturer to prepare a new BIOS version that will support 4GB.

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You must flash your BIOS with the newset verion, and fo r4 GB you have to instal a 64bit operating system

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Can you verify the firmware version of your BIOS?

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Am using a asus laptop F5RL model and i want to download the drivers they asking me for the motherboard model so am stuck now
Hello,

I am not sure which drivers you are trying to use but here is a link to Asus support for your model:

http://support.asus.com/download/download.aspx?SLanguage=en-us&model=F5RL

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For further details about your CPU and Graphic processor, I suggest that you download two small free utilities

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Check out Asus FAQ's; http://support.asus.com/faq/faq.aspx?SLanguage=en-us&model=P4S800D-X&product=6&os=17

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http://support.asus.com/faq/faq.aspx?SLanguage=en-us&model=A8N-E&os=17
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Thank you for using fixya!
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