list of Windows 11 Supported Intel Processor

The motherboard manufacturer was MSI. But, how does your motherboard question relate to the original posters line of question?

I'm looking at upgrading to Windows 11 too.

Need to figure out which version of x51 I have R1 or R2  .was manufactured in 2013 .

Then I gotta see if I can put TPM module on motherboard and will it work or bios recognise.

Have bios at A14

What motherboard is on x51 r2?

You need a BIOS update to allow it to be enabled.  Even if you have a TPM slot, installing a TPMchip is useless without having the selection in BIOS to enable it. 

I am assuming you don't have either a PTT or TMP slider in BIOS if you're asking? 

Then, note that neither of those models would be officially supported by Dell or Microsoft for Windows 11. 

Windows 10 is still fully supported until 2025, and by then computers will be much further ahead technology and performance wise that even a lower end machine will have the performance of a current mid range system.

I don't think you will be missing out on anything if you don't change to Windows 11 by the end of the year/beginning of next year.

Windows 11 is a tock, we will have to wait to windows 12 or later to see a tick.

You should be able to see your version by entering your service tag on Dell's support site: https://www.dell.com/support/home/en-us

Very true.

I'm in no rush 

I probably build my next pc .

Cheers

Tried that and also tried dxdiag .

All it shows is x51 so probably R1.

I see some sellers selling TPM 2.0 module for x51 R1 but that's no good if I can't enabled in bios.

By any chance would TPM show up in bios if a TPM module was installed.