4gb installed only showing 2.75 usable? is this right? what can i do?

Hi everyone. this is my first ever post here, so bear with me plz. I have a dell inspiron 530, with 4 gb ram installed, but the computer says i only have 2.75 usable. Is this right? i am running 64x windows home premium, with nvidia geforce gt 240 video card. the card has over 1gb of its own memory, so its shouldn't be taking from the system, right?

any thoughts or help would be much appreciated. i would really like to use the rest of my ram.

btw, right now, this second, the task manager shows 1767 cached, and 1801 available. that number is over 2814, the amount it says i have usable.

Check your BIOS for a "Memory Remap" option, if it has it make sure its enabled.
The usable memory may be less than the installed memory on Windows 7-based computers

ty for your reply, alphanumeric. I just checked my bios, and it does not have a memory remap option that i can find. It is a standard bios that came with the computer and there aren't many options- i did not build it. The computer itself is about 4 or 5 yrs old. It is a dell inspiron 530. All i have done to upgrade the computer is install windows 64x home premium, nvidia geforce gt 240 video card and a 60 gb ssd. since i don't have the option in my bios, is there anything i can do? or am i stuck with what i have? i really appreciate your input!

If you don't have that BIOS option you may be stuck with what you have? Look though all the options in that Microsoft article I linked to in my post and see if any of it helps. If it doesn't post back and maybe another member will have something else to try.

ty for all your help, alpha. I just update my bios and it worked! ty for all your help1 i really appreciate it! keep up the good work!
ps i got the idea from one of your links!

+1 Resetting the BIOS in my Verion did the trick, too.

I was running x 64 with 6 Gigs 3 strips and one open socket working just fine, added one more 2Gb strip and there you have it, "8Gb installed, 3.2 usable".

After trying lots of things that didn't work, resetting BIOS did it.

my system configuration is i5 750 motherboard ASUS P7H55-V graphic card gefoece Nvidia 9800GTX+ ram 6GB so my window 7 64bit show usable ram 4GB how can i solve this error plz help me out??????

allen1979 said:

ty for your reply, alphanumeric. I just checked my bios, and it does not have a memory remap option that i can find. It is a standard bios that came with the computer and there aren't many options- i did not build it. The computer itself is about 4 or 5 yrs old. It is a dell inspiron 530. All i have done to upgrade the computer is install windows 64x home premium, nvidia geforce gt 240 video card and a 60 gb ssd. since i don't have the option in my bios, is there anything i can do? or am i stuck with what i have? i really appreciate your input!

Allen1979, I have the exact same setup as yours: WIndows 7 Professional 64 bit, Inspiron 530, 4 GB of memory (2.75 available) and BIOS version 1.18. In BIOS I do not see memory remapping option. Can you please tell me how you were able to access entire memory?

Thanks in advance