Dead PC

[mbox_bob]

Looking for the Z77 is fairly limiting these days, and I assume you'd be after that because you have the K variant of CPU.
A quick check on newegg (assuming you can order from them - I cant), shows that you could get http://www.newegg.com/Product/Produc...2E16813157293R for $100. This has the right chipset, and 4 dimm slots.

Otherwise, only replacing the CPU and Mainboard, PCPartPicker shows you could potentially get a i7 4790 (non-K), and a MicroATX board with 4 dimm slots, that just squeezes into your $350 budget (ok, rolls over by 77cents). http://pcpartpicker.com/p/hj2rjX

Anyway, as MiRai said, with your experience at putting these things together, you could be looking up this stuff yourself.

[candlebox]

Nice binary solo..lol

No need to be a dbag. Most of you guys do this for a living. I guess i will see if this new board will fix it. I have been boxing on my laptop for the time being.

[shadowlord63]

Had the same problem with my rig a couple years ago. Found out the grease between the chip and the heat sink/cooling fan was thinned out and needed redone. Computer ran nicely after only a couple of dollars fix

[Hor]

People often forget about the thermal grease shadowlord, stuff doesn't last forever and it's not expensive. Sorta like car batteries imo.