Hey guys, I bought an i7-4790k a few days ago for $25 saying that it's defective because it gives no display. I brought it home and I quickly set up a breadboard in order to test it, with a z97 Asrock Pro 3. It doesn't have an led indicator or light but it has a classic speaker which is supposed to indicate a post code.
I put the cpu in the socket and... Nothing. What should I have expected? It powers on the fans, but it doesn't even post, and after 10 seconds, it reboots and stays powered on and heating up without posting (so it is at least receiving power).
I have swapped the cpu with my i5 4460 and it posts right off
So I have decided to check out some mysterious black silicone marks around the IHS only to find out after prying it open (with my nail!) that it has been dellided by a previous owner... And what a shock, the cpu was covered in a whack ton of thermal paste, it was over the cpu die and the nearby transistors so when I saw that I quickly had a glimpse of hope that if I manage to clean up the mess maybe it would be ok... But nope. I tried updating the bios, resetting the cmos, leaving the battery out overnight, reapplying thermal paste but sadly, it still does not post.
So, my question here is, does somebody know even the craziest idea ever to try and boot this mf? Because for $25, I might aswell try everything in order to revive it.
I have attached photos of the cpu and visually, it looks very good but internally... Who knows?