Windows 10: Why is my system memory(RAM) being limited?

Hello, I've checked the memory on my system with CPU-Z and there it only shows 1066.7 mhz, even though I have a kingston hyperx khx2133c14d4/4g, which should have 2133 mhz instead. My MOBO is a B150M Gaming 3, and I use Windows 7 Ultimate with SP1, but my processor seems not to be compatible with it(Intel Core I3-7100), is it a OS problem? Or is it a misconfiguration on my BIOS? I appreciate any help anyone could give me as I'm not sure what to do.

:)

 

Overclocking / Undervolting guide for Vega 56 or 64?

Here's a quick laundry list:

List of software to use for overclocking and testing
Examples:
Wattman (and how to find and use it, like an overview, including profiles)
Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

Step-by step overclocking in Wattman
Fan speeds
Power limit
Temp limit
Voltages
Core speeds
Memory speeds

 

Installed Memory(RAM)

Hi Jyotirmay,

Base on the screenshot you provided, it means you have a 3.5 GB usable memory out of the 4 GB memory installed. The amount of usable memory that you see is not exact amount. Usable memory is a calculated amount of the total physical memory minus "hardware
reserved" memory.

The reduction of the available system memory depends on the configuration of the following:

• The devices that are installed in the computer and the memory that is reserved by those devices.
• The ability of the motherboard to handle memory.
• The System BIOS version and settings.
• The version of Windows that is installed
• Other system settings.

If you find that much of your RAM is regularly being used, consider adding more RAM if possible, especially if your PC only has 1 or 2 gigabytes (GB) of RAM. To learn more about what kind of RAM your PC model uses, first look at the memory info in Task Manager,
and then visit the PC manufacturer’s website for more specific info.

• Type of memory (RAM) PC uses
• RAM speed
• Memory slots used

Here’s some info about the minimum memory requirements for Windows 10:

• Windows 10 (32-bit) can run on a PC with 1 GB of RAM, but it runs better with 2 GB. For better performance, add memory so you have 3 GB or more.
• Windows 10 (64-bit) can run on a PC with 2 GB of RAM, but it runs better with 4 GB. For better performance, add memory so you have 6 GB or more.
  

Let us know if you need further assistance.

 

System Reserved Memory issue

Hi Rowan,

The reduction in available system memory depends on the configuration of the following:

• The devices that are installed in the computer and the memory that is reserved by those devices
• The ability of the motherboard to handle memory
• The system BIOS version and settings
• The version of Windows 10 that is installed
• Other system settings

As an initial troubleshooting step, I suggest that you check your system for memory problems.

Here's how:

• Type mdsched.exe in the search bar and select the best match.
• When prompted by the User Account Control, enter an admin user name and password, and click
  Yes.
• Follow the on-screen instructions to run it.

Let us know how it goes.