Windows 7 - 6 GB RAM (Only 4GB useable) - How do I solve this?

Okay so I know there are alot of threads on this but literally none of them have helped me resolve my problem. My windows 7 64 bit is showing that I have 6GB of ram (yet only 4gb useable)...

I checked the 'resource monitor' and there is 2 gb reserved for something and I would like to know why and how I can unreserve it. I downloaded a program called CPU-Z and checked that my full 6GB was getting recognised and it is.

I have seen on other forums that one solution would be memory remapping. I then found out that on my Gigabyte X58A-UD3R mobo, there is no memory mapping feature in the BIOS. So now im kinda stuck and dont know what to do, its just really fustrating as I would like to utuilise the full 6GB of ram.

MY specs just incase....

Windows 7 64 bit
i7 950
Gigabyte X58A-UD3R
Radeon HD 5570
3x2gb DDR3 corsair RAM CMX6GX3M3A2000C9
2tB Raid 0

Please someone help

Go to system configuration, click on boot tab, then click advanced options, then under maximum memory un-tick box. Click OK and apply out out it, a reboot will follow. Then check it.

Kinda a dumb question, but is your system sharing memory with the video car?

ye tried this aswell , the box is already unticked ....

wouldn't know how to check ? Treat me like I know nothing...

His first post shows an HD5570 video card so I think that's a no.

I see no memory reserve in my memory monitor. Could that be Standby and Free if it is that is very normal. Standby and Free is there to be used if needed. Hit the Widows Flag Key and the Pause Key and see if Windows reads all your ram. If it does I would let Windows take care of the memory, it will do a great job.

Lots of things to try,

Asus X58 + 6/12GB memory overclocking - detecting less memory than installed - i4memory.com - different look at memory