Sorry I couldn't reply earlier, I had to get off my sister's computer. Anyways, I did further testing out of the box this morning and while there has been some progress, I still cannot POST. So this is what I did. I took the motherboard out of the case and put it on top of the retail box it came with. I reseated and repasted CPU and NB HSF. I cleared the CMOS. I put the motherboard battery back in as I previously took it out for 11+ hours before I went to bed the night before. I only put one RAM into the motherboard in the innermost yellow slot (if I put any combination of two, the PC goes in an endless loop of restarts after every 2-3 seconds). I plugged my video card in. I plugged in my sister's brand new Antec EA380 which I bought for her just this past Tuesday. I plugged in only keyboard, mouse, monitor. Cleared the CMOS again, pressed on the power switch with the PSU off and plug disconnected to discharge. Then I finally plugged the power cord in, switched the PSU on, and everything seems to run normally (no restarts after every 2-3 seconds), except my video card fan doesn't quiet down (it stays at high speed the entire time when it normally starts at high speed then drops to low speed after 5 seconds), and it's just a black screen, no POST, and no beeps. So it shouldn't be my PSU.