64bit windows 7 says only 3.89gb memory usable..

[fsync28]

So, installed Windows 7 64bit to get the full 4gb of memory, in system information it says that 4gb installed but only 3.89gb memory is usable? why not full 4gb?

 

[alexkensit]

It's normal. Don't worry.

 

[weberdarren97]

Because of multiple reasons. First is that it's 4GB BEFORE formatting, after formatting it's just under 4. Second, BIOS will consume some memory in order to interface with the keyboard, mouse, etc.

Just because you have 4GB doesn't mean you can use every single byte of it. This is not a problem, it's perfectly normal.

 

[Snipergod87]

Because of multiple reasons. First is that it's 4GB BEFORE formatting, after formatting it's just under 4. Second, BIOS will consume some memory in order to interface with the keyboard, mouse, etc.

Just because you have 4GB doesn't mean you can use every single byte of it. This is not a problem, it's perfectly normal.

Formatting???

Chances are fsync28 has an integrated GPU, which is using some of his systems RAM + some of it being hardware reserved.

 

[nukemaster]

You have about 112 megabytes(I have 37 even with dedicated video and no onboard sound) in use for other things. It could be onboard video or any other number of things that takes some memory away. It should not cause an issue.

 

[weberdarren97]

There is a very light form of a filesystem built into RAM, or so my instructor says.

 

[USAFRet]

There is a very light form of a filesystem built into RAM, or so my instructor says.

I think you need a new 'instructor'.

 

[fsync28]

I am not using the integrated graphics, infact i have a dedicated graphic card which has its own dedicated video memory?

 

[nukemaster]

Does the resource monitor show your hardware reserved.

All systems will take some, but with so many systems on the market they are not all going to be the same.

 

[USAFRet]

I am not using the integrated graphics, infact i have a dedicated graphic card which has its own dedicated video memory?

On my i5-3570k system, with a dedicated R9 280x, there is 39.9 MB Hardware reserved.

 

[nukemaster]

There is a very light form of a filesystem built into RAM, or so my instructor says.

Formatting has confused users for years.

Lets start by saying that hard drive makers rate things is human friendly 1000's so 1000bytes in a kilobyte and 1000 kilobytes is a megabyte and so on.

Now computers(up until more recently if you look at the big picture) have used 1024(a very computer friendly setup) so it takes 1024 bytes to make a kilobyte and 1024 kilobytes to make a megabyte.

Over time many operating systems have switched to using KiB kibibyte(the standard popped up in 98, but you know we are slow to adapt). Windows still uses 1024.

This has over the years lead to MANY users claiming formatting is the reason why drives loose space, but it is mostly the conversion from 1000 to 1024 that makes the difference. The file system does take some space with its master file table or equivalent, but that does not actually make the partition smaller show up as smaller, it simply takes space like a file(you can even see the MFT in many 3rd party fragmentation tools).

This is also the reason a 5.83 gigabyte(GiB) file is 6267076608 bytes
6267076608/1024/1024/1024=5.83(with some extra accurate 6669921875 for fun)

Back on topic.
If it is available, chances are something in the bios is holding it. You could look for a memory remap feature, but I do not think it is needed with 4 gigabytes.

 

[fsync28]

Does the resource monitor show your hardware reserved.

All systems will take some, but with so many systems on the market they are not all going to be the same.

How to check that?

 

[Hlsgsz]

So, installed Windows 7 64bit to get the full 4gb of memory, in system information it says that 4gb installed but only 3.89gb memory is usable? why not full 4gb?

A proper version of windows would not confuse you with such nonsense, and tell you that you have 4gb.

 

[fsync28]

So, installed Windows 7 64bit to get the full 4gb of memory, in system information it says that 4gb installed but only 3.89gb memory is usable? why not full 4gb?

A proper version of windows would not confuse you with such nonsense, and tell you that you have 4gb.

didn't understand what you wanted to say..

 

[Hlsgsz]

So, installed Windows 7 64bit to get the full 4gb of memory, in system information it says that 4gb installed but only 3.89gb memory is usable? why not full 4gb?

A proper version of windows would not confuse you with such nonsense, and tell you that you have 4gb.

didn't understand what you wanted to say..

Nevermind, i was babbling. I don't see why people keep clinking to win 7, but that has nothing to do with your issue.

Try these setting in the bios:
iGPU off
render standby enabled
igpu memory auto
multimonitor disabled
memory remap on