Can you swap mobile processors?

[Colossus]

I have a HP notebook running a P6000 1.86 ghz Pentium. Other CPU options are an i5 520 or 540M. The current socket is a PGA988. If I were to source an OEM HP core i5 from the same family, could I replace the CPU. Its the same TDP but the Intel specs do not mention a voltage for the i5. The RAM specs are the same and the GPU is integrated as with the P6000. I'd presume I would need to replace the thermal paste and reinstall the OS. Would the BIOS see the new CPU? There seems little difference between the 520 and 540. I attach the Intel CPU comparison

[AlHill]

https://ark.intel.com/content/www/us/en/ark/compare.html?productIds=43544,47341,49058

You must ask HP if the i5-520M or the i5-540M is compatible with their bios.

If so, you "may" be able to simply swap the processor, and you "may not" have to reinstall the OS. 

You "may" have to re-enter your OS key.

Sorry, I know this is not a solid answer.

Doc (not an Intel employee or contractor)
[Windows 11 is the new Vista]

[David_G_Intel]

Hello Colossus

Thank you for posting on the Intel️® communities.  

Due to this product being discontinued, Intel Customer Service no longer supports inquiries for it, I am glad to see that fellow community members have the knowledge and they jumped in and helped. You may also find the Discontinued Products website (https://www.intel.com/content/www/us/en/support/discontinued-products.html) website helpful to address your request.  

You can get the specifications and verify this product's discontinuance status at the Intel® Product Specifications website > Product Status > "Discontinued". https://ark.intel.com/ 

Please keep in mind that this thread will no longer be monitored by Intel. Thank you for your understanding.    

Regards, 

David G 

Intel Customer Support Technician