64 bit only using 3.5gb of 4gb

[jbhungal]

Hi im having an issue with windows 7 ultimate 64 bit 6.1.7600. I have installed 4gb of ram and when i go to system in control panel it say i have 4gb but only 3.5 usable i have no idea why. I have been researching and all i can find is that this only happens with 32 bit(and is supposed to) but i have 64 bit and this makes no sense to me. Here are the rest of my specs any help will be appreciated.

intel q8200s
Gigabyte EP45T-USB3P(http://www.newegg.com/Product/Product.aspx?Item=N82E16813128433&Tpk=Gigabyte%20EP45T-USB3P)
4gb gskill ripjaws DDR3 1600(http://www.newegg.com/Product/Product.aspx?Item=N82E16820231277)
Sapphire ATI 5870 Vapor-X

 

[sminlal]

Try this:

Start -> type "msconfig" into the Search box, hit <enter>

Click the "Boot" tab

Click the "Advanced Options..." button

Make sure the "Maximum Memory" option is NOT checked.

 

[The_Prophecy]

See number 10 in this thread: http://www.tomshardware.com/forum/2065-63-common-questions-windows-version

 

[jbhungal]

wow you guys are great fixed the problem... i cant believe i over looked that but thanks for the help i really appreciate it.

 

[ZEPd3Z]

I had the same Issue, as what The_Prophecy link suggested, Enable the Memory hole remapping on the bios its on the chipset option and northbrige option.

 

[jbhungal]

Best answer selected by jbhungal.