Maximum PC

I need help i have 6gb of ram running on windows 7 x64. But only 3.99 is usable.?!?! I am all my ram 6gb but only 3.99 is usable. Can someone help me fix this? My specs

mobo: Evga Classified 3
gpu: ati 5770
psu :520
Ram: OCZ DDR3 PC3-10666 i7 extreme @stock
Cpu: i7 920 c0 @ 2.9

Are these two gig sticks? I looks like you don't have a stick pushed all the way into the ram slot.

Nasty

Either that or your computer has a lot of shared RAM such as graphic card, etc...

Either:

• The motherboard is very finicky where you put the RAM. So make sure you have the RAM in the proper slots
• One RAM stick isn't seated properly.
• One RAM stick is dead

What does your BIOS report as the total amount of RAM available?

any ram used by the system, windows, or software that is running in the background is not usable memory

There's effectively zero cases where hardware ships needing on board RAM, let alone 2GB, because it's stupid to assume your costumer has enough RAM to spare for your part. The only time this is ever true is integrated GPUs, and even then, they don't take that much RAM.

And the part in question doesn't even have an integrated GPU.

do you not think it takes memory to run the system, I have read that win 7 can easily use 2gig of memory in just a few min, he is talking about usable memory not total system memory, or he needs to re word his post.

In Vista, at the desktop, running task mgr. with nothing running other than system and anti virus I am using 1.7gig of my 8gig of memory which effectively leaves me with 6.3gig of "usable" memory.

I'm going to apologize up front if my following post sound brash and harsh, but I can't be fluffy and nice at a time like this.

What OP is describing is Windows is only seeing 4GB out of 6GB. I can infer that OP has no parts that eat up main memory because the only one I'm aware of is integrated GPUs, and OP's system has no such thing. I'm also going to going to assume that, based on what OP has posted, that nothing would appear out of the ordinary to eat up the 2GB that's missing. When Windows detects something like an integrated GPU eating up some system memory, it will literally say something like "Physical memory available to Windows: 6.00GB available (5.50GB usable)" because Windows has dedicated 500MB just to the integrated GPU. It can't use it, and it won't let other programs use it.

Also "usable" in this context does not mean memory that's "free", i.e., you have 6.3GB of memory available to use by other programs. 1.7GB that's marked as used may or may not be Windows. And besides that, this only accounts for the private working set: data and instructions that only are useful to one program. It may account for currently used shared libraries as well.At least with Windows 7, the amount of actual "free" memory may be in hundreds of megabytes or less, because the rest of the "free" memory is used for either caching or that part hasn't been flushed yet.

I didnt say a word about free memory, I only have 54meg that shows as free, just usable memory, anything that is not in use for software etc I consider as usable memory. windows will adjust the amount of memory that is used for caching etc as it is needed for other programs, be it office, games or whatever, it is not a fixed amount. If i tray internet explorer my memory usage goes to over 2gig there is also other software in use that uses memory even when its in the tray, avg, microsoft security, evga precision, steam, printer software,origin and others.

Thanks for the tips........