windows 7 64bit only showing 3.75gb of ram in use

Soldato
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hi guys just curious to know why my windows 7 system manager is saying only 3.75gb of my 4gb memory is being used i thought windows would support up to 16gb thats what my board max is im going to try updating the bios to see if this solves the problem if not any ideas to why this is happining?

Many thanks
 
Is this a desktop or laptop?
Are you using onboard graphics or an add on graphics card?

Onboard graphics tend to ringfence a portion of system ram for it's own dedicated usage.

Or it could be something else, which it normally tends to be when I throw an idea in the ring! ;)
 
im using on board graphics at the mo and from wat u just said i think that could be the problem i have sent my 260 gtx card off to be repaird and when i checked my ram with the card in it was showing 4gb
 
Oh my... :eek:

:cool:

(Check the bios, you might be able to adjust how much it uses, useful if you need a large screen size.)
 
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There is no problem. You have 4GB of RAM. Windows is using, correctly, about 3.75GB of that.

Where is the problem here?

The fact that your motherboard supports 16GB as a maximum is irrelevant until you actually buy another 12GB of RAM and plug it in...
 
Onboard graphics chipset is using 256Mb of system memory for itself, leaving the rest for Windows - don't see the problem? Like you said if all 4Gb was showing up when your GTX260 was in then you've got nothing to worry about.
 
hi guys just curious to know why my windows 7 system manager is saying only 3.75gb of my 4gb memory is being used i thought windows would support up to 16gb thats what my board max is im going to try updating the bios to see if this solves the problem if not any ideas to why this is happining?

Many thanks

If it says you have 4 GB in Control Panel > System, then you've nothing to worry about.
 
if you mean Control Panel > System says something like 4.00 GB (3.75GB useable) then do this (worked for me):

msconfig > boot tab > Advanced Options > UNtick 'number of processors' and 'Maximum memory' tick boxes > reboot
 
What about 32bit? I'd probably go with this if I was going to move to Windows 7.

it will always be stuck at 4GB as 32bit can only address 2^32 (4billion addresses) addresses which is 4GB. IMO there is on point getting 32bit Windows 7 and thats not because of only being able to use 4GB of ram (as lets face it, if you aren't running a powerful server you won't need it really) but because there really isn't an issue with 64 bit!
 
Go to the Microsoft Windows 7 site and run the upgrade advisor - that will highlight what hardware and software on your current install that you're likely to have problems with.
 
Were they warnings though with suggestions (amber) or known incompatibility (red) messages?

Clearly I would expect most of the stuff in your sig to work fine.
 
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