CPU Throttling

Background: I had an iMac stored away for years that I wanted to give to my father. But while transporting it to him, the airline crushed it so badly that it looked like a chocolate bar melting. And nah, they ain't paying for it. The aluminum got bent... and the speakers and the screen got crushed. But the logic board and everything else seemed OK so I removed the broken screen and decided to plug an external monitor for him. PROBLEM: I didn't know that the kernel would panic thinking it was overheating, I tried buying that thermal cable that was originally plugged into the screen from China but it didn't seem to work. I ran voltageshfit and forced the CPU to be at 4.1ghz constantly as opposed to the 800mhz it was stuck at. It kinda worked but since the kernel is panicking the CPU usage is always between 60 and 90% and the performance is poor. The fans were always at 100% but I controlled it with Mac Fan Control. I was told that Open Core won't work with the 19...
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