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Windows 7: Windows 7 x64 not recognizing RAM

13 Jan 2011   #1
MrLooke

Windows 7 Ultimate x64
 
 
Windows 7 x64 not recognizing RAM

Okay, so I've got Windows 7 Ultimate x64 installed and I have 12gb of ram (3x4gb) but windows 7 only detects 4gb as shown below:



But CPU Z detects the whole 12gb, so does anyone know what the problem is? or what I need to do to diagnose the problem



My spec's are on my profile under "system specs" if anyone needs to know them and if you need any more information, just ask.

Thanks in advance for any help, I appreciate it


My System SpecsSystem Spec
.
13 Jan 2011   #2
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

Check here to make sure Maximum memory is unchecked & set to Zero (0)

Start System Configuration Boot Advanced Options

Windows 7 x64 not recognizing RAM-maximum_memory.jpg




Also make sure there is nothing in the BIOS setup limiting memory or allocating memory to another area.


My System SpecsSystem Spec
13 Jan 2011   #3
MrLooke

Windows 7 Ultimate x64
 
 

It's unchecked and set to 0


In BIOS under System information it says only 4gb is usable... i'm not sure how to remedy this though
My System SpecsSystem Spec
.

13 Jan 2011   #4
Kristomight

Windows 7 basic x64
 
 

Hey guys Im also having a similar problem. I have just installed 2 4gb sticks or RAM. Bios reads it as 8gb. But In System Properties It says I have 8Gb installed but only 2.5Gb is uasable. I tried the Ms config thing as well.
Thanks.


Attached Thumbnails
Windows 7 x64 not recognizing RAM-res-mon.png  
Attached Images
Windows 7 x64 not recognizing RAM-sys-properties.png 
My System SpecsSystem Spec
14 Jan 2011   #5
MrLooke

Windows 7 Ultimate x64
 
 

Anyone got any ideas?
My System SpecsSystem Spec
14 Jan 2011   #6
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

Quote   Quote: Originally Posted by MrLooke View Post
Anyone got any ideas?
Post a snip of your Resource Monitor - Memory tab.
Start button > type Resource Monitor in the box, hit enter.

Any new hardware lately?
New graphics card or RAM?

If you haven't refreshed your WEI, try that, strange at it seems it has helped for some people.

Quote   Quote: Originally Posted by Kristomight View Post
Hey guys Im also having a similar problem. I have just installed 2 4gb sticks or RAM. Bios reads it as 8gb. But In System Properties It says I have 8Gb installed but only 2.5Gb is uasable. I tried the Ms config thing as well.
Thanks.
That is a huge Hardware Reserved amount.
I have 8GB RAM with 9MB Hardware Reserved, something is trying to use your RAM.

Did you re-boot after clearing the Max memory in msconfig?
If not, then re-boot and see if it has made a difference.

When you add new hardware you need to refresh your WEI, your snip shows it's asking for the refresh. As mentioned above this has helped some solve this issue in some cases.


Both of you can:
Check your BIOS for any Memory re-mapping function, if you have it enable it.

Open Task Manager, Processes Tab, click the Memory header and it will list by most memory used. This should show you what is using your memory.
Post back the details.

Check your motherboard website BIOS update log for memory fixes.
My System SpecsSystem Spec
14 Jan 2011   #7
tominator44

windows 7 ulitmate x64
 
 

In response to mr loocke

Make sure the ram you are adding is compatible with the mother board, if you system only takes 800 mhz ram and you are adding 1033 or 1333 and also what size ram stick your mobo will take, some will not recognize 4 gig sticks and these could be a major issues. Look at the specs for your board, mine maxes at 800 and I cant put anything larger than 2 gig sticks, other than another setting in the bios this must be what the issue is...
My System SpecsSystem Spec
14 Jan 2011   #8
Kristomight

Windows 7 basic x64
 
 

I rebooted after setting the memory in msconfig to 0, no change.
I found somthing in my bios called memorey hole mapping, it was enabled.
I also found somthing that says somthing like os/2 or no os/2. I tried both and nothing changed. also updated WEI.

Looked up BIO's updates and there are alot.
BIOS 0901
1. Add iGPU Overclock function.
2. Enhance compatibility for certain memory modules.
3. Add support to AMD C1E function.
Think this could be what im looking for?
I would realy like to avoid updating bios if posible haha.

Thanks again.


Attached Images
Windows 7 x64 not recognizing RAM-task.png Windows 7 x64 not recognizing RAM-msconig.png 
My System SpecsSystem Spec
14 Jan 2011   #9
stormy13
Microsoft MVP

Win 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by MrLooke View Post
Anyone got any ideas?
Yep, double check that your heatsink isn't on too tight,

RAM Problems? Cooling too Tight? - [H]ard|Forum

and also double check that none of the pins in the socket are bent,

Rage3D Discussion Area - View Single Post - Windows 7 64bit recognize 4GB of 6GB RAM

Help, bent pins! - [H]ard|Forum

Bent 1366 pin - XtremeSystems Forums
My System SpecsSystem Spec
14 Jan 2011   #10
MrLooke

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Dave76 View Post
Quote   Quote: Originally Posted by MrLooke View Post
Anyone got any ideas?
Post a snip of your Resource Monitor - Memory tab.
Start button > type Resource Monitor in the box, hit enter.

Any new hardware lately?
New graphics card or RAM?

If you haven't refreshed your WEI, try that, strange at it seems it has helped for some people.

Quote   Quote: Originally Posted by Kristomight View Post
Hey guys Im also having a similar problem. I have just installed 2 4gb sticks or RAM. Bios reads it as 8gb. But In System Properties It says I have 8Gb installed but only 2.5Gb is uasable. I tried the Ms config thing as well.
Thanks.
That is a huge Hardware Reserved amount.
I have 8GB RAM with 9MB Hardware Reserved, something is trying to use your RAM.

Did you re-boot after clearing the Max memory in msconfig?
If not, then re-boot and see if it has made a difference.

When you add new hardware you need to refresh your WEI, your snip shows it's asking for the refresh. As mentioned above this has helped some solve this issue in some cases.


Both of you can:
Check your BIOS for any Memory re-mapping function, if you have it enable it.

Open Task Manager, Processes Tab, click the Memory header and it will list by most memory used. This should show you what is using your memory.
Post back the details.

Check your motherboard website BIOS update log for memory fixes.


There's the resource monitor
and it's all brand new stuff, it's a new build, I've installed latest drivers and BIOS updates as far as I can see.
I tried refreshing my WEI, no luck
And there is no memory remapping in my BIOS

Thanks for replying though
Quote   Quote: Originally Posted by stormy13 View Post
Quote   Quote: Originally Posted by MrLooke View Post
Anyone got any ideas?
Yep, double check that your heatsink isn't on too tight,

RAM Problems? Cooling too Tight? - [H]ard|Forum

and also double check that none of the pins in the socket are bent,

Rage3D Discussion Area - View Single Post - Windows 7 64bit recognize 4GB of 6GB RAM

Help, bent pins! - [H]ard|Forum

Bent 1366 pin - XtremeSystems Forums
I'll check this now, thanks
My System SpecsSystem Spec
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 Windows 7 x64 not recognizing RAM




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