I want to give up so bad. I want to just chuck this system out the window because I've exhausted both my money and time trying to fix this. School starts in 2 weeks, and I will have 0 time to do anything with my computer. If you think this sounds like anything you've heard of, please tell me. I'm frustrated beyond belief.
I built my system in August 2010 with the help of a friend (I'm now in a completely different city).
In February, I started having weird power issues. My computer would shut down (anywhere from 1 time a week to 3 times a day_, and I couldn't turn it on without repeatedly disconnecting and reconnecting (up to 10 times) my 24 pin connector. I posted here and noone could really isolate the problem: PSU or mobo? I was finishing up my thesis at the time, so I didn't find the time to try and fix it. In early May, I finally took the time to call Gigabyte, hoping they had heard of it. After a good deal of poor customer support, I decided I would RMA, sell the RMA'd mobo, and then purchase a new motherboard. In the mean-time, I called Corsair. They suggested that it could be my PSU having issues with power. I RMA'd this and borrowed my brother's Corsair TX750V2 (he is in Hawaii at graduate school now).
I followed instructions and watched a few videos on the proper way to replace my motherboard. I used a xylene based cleaner and then isopropyl alcohol, once again following instructions. I then used Arctic Silver 5 as my thermal paste.
I built. I plugged in the 750W PSU, and turned it on. Before even turning on my computer, the case LEDs and case fans turned on. Weird, so I powered up. The heatsink fan began twitching. No post. No beep codes.
I changed back to my old PSU. Same problem. I tried using only 1 stick of RAM. Same problem. I reseated my CPU. Same problem. I tried to breadbox it (boot up with minimal components). Same problem.
I posted on reddit, and I posted here. I had no idea why my case was lighting up without powering up my system. Then when I had hit power, the CPU fan twitch was very odd.
After trying more solutions, I decided to RMA my motherboard. I just received my new motherboard, so I decided to try again.
Same problem. I don't know what to do. I'm almost broke.
Did I screw up my CPU when I replaced my motherboard? How can I tell? Please.
It's hard to damage the newer Intel cpus. More likely you will damage the board pins under the cpu. I think it's time you took your pc into a shop or posted a request on craigslist for an unemployed computer tech. Some of them only charge $25 in my area to check out a pc, and they may come to your home. Too bad you don't live near me in austin. I would only charge for the gas.