Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: 4 GB Installed 2 GB Usable Memory issue.


06 Feb 2010   #1

Windows 7 Home Premium 64-bit
 
 
4 GB Installed 2 GB Usable Memory issue.

I just built a PC and installed Windows 7 Home Premium x64. My system shows 4 gigs of ram installed but only 1.99 GB usable. I'm not sure what else I can check here. I'm using an EVGA P55 LE with the latest bios.

Latest Bios
Memory remapping enabled
Check MSCONFIG max memory isn't limited.

I noticed that on EVGAs performance tool the memory is reading as single channel when it should read dual channel.

I'm using a Radeon HD 4890 1GB DDR5
OCZ Low Voltage Platinum PC-10666 Dual Channel 2GBx2 DIMMS

I've been scouring the internet in search of some sort of answer. Please Help!

My System SpecsSystem Spec
.

06 Feb 2010   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

Its just the way win 7 manages memory.

If you have 4GB and windows sees it then whats happening is that windows is taking
2 GB as a primary superfetch, in addition to other functions.

Makes apps load faster and other things.

If the task manager shows 4 GB, then you are ok.
My System SpecsSystem Spec
06 Feb 2010   #3

Vista Ult 64 bit Seven Ult RTM x64
 
 

Hello ctdummy,

Welcome to Seven Forums.

As Rich says, it is superfetch loading parts of your most used programs into ram so that they can open faster when you want them. If the ram is needed by running apps, superfetch will release the ram for that use. Nothing to worry about.

Gary
My System SpecsSystem Spec
.


06 Feb 2010   #4

Windows 7 Home Premium 64-bit
 
 

I'm still rather confused. This isn't exactly how the windows help describes this activity. Any guess as to why it doesn't recognize the ram as dual channel?
My System SpecsSystem Spec
06 Feb 2010   #5

Windows 7 Ultimate x64 SP1, Windows 8.1 Pro x64
 
 

Try setting maximum memory in msconfig to 4096MB
My System SpecsSystem Spec
06 Feb 2010   #6

Windows 7 Ultimate x64 SP1, Windows 8.1 Pro x64
 
 

Try CPU-Z. See if it shows dual channel

CPUID
My System SpecsSystem Spec
06 Feb 2010   #7

Windows 7 Home Premium 64-bit
 
 

It is showing as single channel there as well and it's only running at about half it's rated frequency.
My System SpecsSystem Spec
06 Feb 2010   #8

Windows 7 Ultimate 64 - OEM Service Pack 1
 
 

Have you tired switching the ram to different slots? 1-3 or 2-4 that usually is the culprit.


Steve
My System SpecsSystem Spec
06 Feb 2010   #9

Windows 7 Ultimate x64 SP1, Windows 8.1 Pro x64
 
 

Since it is Double Data Rate RAM, 1066 will show as 533, that is normal.

I would follow Steve's suggestion regarding the RAM slots for Dual channel.
My System SpecsSystem Spec
06 Feb 2010   #10

Windows 7 Home Premium 64-bit
 
 

it seems to be performing well enough so I'm going to leave it be. They are pretty specific about which slots to use and I know it is set up correct. My main concern was system bios and whether or not windows would call on the remaining 2 GB of memory when needed.
My System SpecsSystem Spec
Reply

 4 GB Installed 2 GB Usable Memory issue.




Thread Tools



Similar help and support threads for2: 4 GB Installed 2 GB Usable Memory issue.
Thread Forum
Installed Memory 6GB but 2GB usable. General Discussion
Installed Memory: 1.50GB (768 Usable)? Hardware & Devices
Installed memory (RAM): 2,00 GB (1,00 GB usable) Help? :( Hardware & Devices
all the installed memory (RAM) not usable?? Hardware & Devices
Installed memory (RAM): 4.00 GB (3.75 GB usable) Hardware & Devices
1GB Installed memory, only 1gb usable. General Discussion
Installed/usable RAM memory? Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 12:22 AM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33