Why is only 3gb of ram usable

If 4 GB of system memory is already installed, part of that address space must be reserved by the graphics memory mapping. Graphics memory mapping overwrites a part of the system memory.

These conditions reduce the total amount of system memory that is available to the operating system. For more information about how to determine how memory is used on your computer, see the " Physical Memory Allocation in Windows 7 " topic in the "More Information" section.

There are several additional situations that could cause the usable RAM to be less than expected. These issues and possible solutions are listed here:. This problem may occur because the Maximum memory option is selected incorrectly. To fix this, follow these steps:. Click Start , type msconfig in the Search programs and files box, and then click msconfig in the Programs list. In the System Configuration window, click Advanced options on the Boot tab.

Click to clear the Maximum memory check box, and then click OK. The problem may occur because the system BIOS is outdated. If you have an older computer, the system may be unable to access all the installed RAM.

In this case, you have to update the system BIOS to the latest version. Or, contact your computer manufacturer for help. Enable the memory remapping feature Check the BIOS settings to see whether the memory remapping feature is enabled. Memory remapping gives Windows access to more memory. You can enable the memory remapping feature in the BIOS by booting to the system setup.

See the User's Guide for your computer for instructions on how to boot to system setup on your computer. The name for the memory remapping feature may be different for different hardware vendors. This can be listed as memory remapping, memory extension, or something similar. Be aware that your computer may not support the memory remapping feature.

This is the memory that the system is sharing with the video card that is used for texture mapping and rendering. This memory would not be used by the system, because it is locked by the video card. You can test each setting to see which offers the best results. Check whether you have bad memory modules To check whether you are experiencing this issue, turn off the computer, unplug the computer, and then swap the order of the memory.

Make sure that the memory arrangement is correct Refer to the User's Guide of the computer to determine in what order the memory modules should be inserted into the memory slots. The system may require you to use specific slots when you are not using all the available slots. For example, the computer has four slots available. But you may have to use slot 1 and slot 3 if you want to use only two memory modules.

Check whether memory standoff cards are used If you use a memory standoff card to hold multiple memory modules on the computer, the system may require specific configurations for this scenario. Details required :. Cancel Submit. Rohit Siddegowda. Hi Aravind, Method 1 : I would suggest you to follow these steps to increase the memory and check if it helps: a. How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site. A subscription to make the most of your time. Try one month free. This site in other languages x. GeForce Graphics Cards. By Recency Recency Votes Hot. Filters 2. Mark as read. Display driver nvlddmkm stopped responding and has successfully recovered. Rtx causing pc to restart when gaming.

Problem With GTX Nvidia Battlefield Crashing, ti. Nvidia GPU not detected?? Issue after update driver. GPU very low usage after a few mins of gaming. GPU response time high in Warzone. Color saturation changes intermittently while watching videos.

This site uses Akismet to reduce spam. Search Join Now Login. Sort By. Notification Preferences. Forum Actions. Report Post. This chipset has an integrated video chipset which uses MB memory. Therefore, you only have 2. Is there a way that I could disbale the integrated video chipset? With 2x2GB, you will have 3.