X51 R2, No Boot & Infinite Beeps

Hey guys,

My Alienware started acting weird around 4-5 months ago, as it won't boot while getting infinite beeps upon turning it on. It usually booted fine after many attempts, but with each incident, it took more restart attempts to get it to work.

I ended up avoiding shutting down/restarting my PC completely in fear that it won't start again.

unfortunately, a few days ago windows restarted my PC for an update, and that was the last time I saw it start

I'm well aware of this notorious Issue. From what I've seen in the forums and the Internet is that it can be solved with:

- Draining the charge by holding the power button etc.

- Making sure that rams are placed properly or switching the ram sticks etc.

- CMOS Jumpstart.

I tried all these steps multiple times, but no joy. ( Obviously except getting a new Mobo)

My question is:

How can I make sure that it's not a CPU issue before I buy a new Mobo from eBay or somewhere?

I'm worried that I end up buying a new Mobo to end up having to get a new CPU instead. 

any advice?

cheers