Retrieving Total amount of RAM on a computer

Question

Possible Duplicate:
C# - How do you get total amount of RAM the computer has?

The following would retrieve how much ram is available:

PerformanceCounter ramCounter;
ramCounter = new PerformanceCounter("Memory", "Available MBytes");
Console.WriteLine("Total RAM: " + ramCounter.NextValue().ToString() + " MB\n\n");

Of course we will have to use the System.Diagnostics; class.

Does performancecounter have any functionality for retrieving the amount of RAM of a particular machine? I'm not talking about the amount of ram used or unused. I'm talking about the amount of ram the machine has.

Check [this][1] . [1]: http://stackoverflow.com/questions/105031/c-sharp-how-do-you-get-total-amount-of-ram-the-computer-has — Shai, Dec 11 '11 at 07:27
This have been answered here: http://stackoverflow.com/questions/105031/c-sharp-how-do-you-get-total-amount-of-ram-the-computer-has — Softnux, Dec 11 '11 at 07:27
Yes it has but not by using the performance counter class. I'm trying to tackle this from the performance counter class directly and not via visual basic DLL. — D. Rattansingh, Dec 11 '11 at 07:41

Hans Passant · Accepted Answer · 2014-06-24T19:00:14.927

17

This information is already available directly in the .NET framework, you might as well use it. Project + Add Reference, select Microsoft.VisualBasic.

using System;

class Program {
    static void Main(string[] args) {
        Console.WriteLine("You have {0} bytes of RAM",
            new Microsoft.VisualBasic.Devices.ComputerInfo().TotalPhysicalMemory);
        Console.ReadLine();
    }
}

And no, it doesn't turn your C# code into vb.net.

edited Jun 24 '14 at 19:00

answered Dec 11 '11 at 12:24

Hans Passant

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Could you advise me on how to set my topic as answered/completed? – D. Rattansingh Dec 11 '11 at 15:59
3

The question asks for amount of RAM on a machine, so this should be `new Microsoft.VisualBasic.Devices.ComputerInfo().TotalPhysicalMemory` rather than AvailablePhysicalMemory which displays amount of bytes currently allocated. – zgerd Jun 24 '14 at 18:54
Does not work in .NET 3.0+. [The entire `Devices` namespace has been removed](https://learn.microsoft.com/en-us/dotnet/core/compatibility/visualbasic#types-in-microsoftvisualbasicdevices-namespace-not-available). – julealgon Jun 14 '21 at 15:00
Target .NET Core 5 instead. – Hans Passant Jun 14 '21 at 15:13

score 2 · Answer 2 · answered Dec 11 '11 at 09:31

2

you can try like this

Add a Reference to System.Management.

private static void DisplayTotalRam()
{
  string Query = "SELECT MaxCapacity FROM Win32_PhysicalMemoryArray";
  ManagementObjectSearcher searcher = new ManagementObjectSearcher(Query);
  foreach (ManagementObject WniPART in searcher.Get())
  {
    UInt32 SizeinKB = Convert.ToUInt32(WniPART.Properties["MaxCapacity"].Value);
    UInt32 SizeinMB = SizeinKB / 1024;
    UInt32 SizeinGB = SizeinMB / 1024;
    Console.WriteLine("Size in KB: {0}, Size in MB: {1}, Size in GB: {2}", SizeinKB, SizeinMB, SizeinGB);
  }
}

answered Dec 11 '11 at 09:31

Glory Raj

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For some reason this is retrieving the wrong value, suppose to be 3.34 g, it's retrieving 4 gb. I have some code to do this and was using it in an application of mines on my laptop for 6 years and working fine. Added some more RAM to my computer and suddenly doesn't work again. Thanks anyway. – D. Rattansingh Dec 11 '11 at 15:56
6

This is not retrieving the currently installed memory this is retrieving the max supported amount of memory that can be installed to the mainboard. – May 06 '13 at 13:36

Retrieving Total amount of RAM on a computer

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