You must contact HP and ask them what processors are compatible with their BIOS. Then, you can select from those processors.
And, that is only possible if the current processor is not soldered to the motherboard.
For processor upgrades, the new processor MUST be socket and BIOS compatible.
This message was posted on behalf of Intel Corporation
Thank you very much to Al Hill for the information provided above.
I just wanted to confirm the information posted previously as correct, so, in order to find out if the processor can be upgraded, the best thing to do will be to get in contact with HP directly.
HP’s phone number: 1 800-474-6836
HP’s support site: http://support.hp.com/us-en/contact-hp
Any questions, please let me know.