Alright well, never heard of a techcomm PSU company. You said your PSU was getting too hot? How hot is that? Over 60C? If it's over 60-C that's not good for the PSU, and your PSU might be junk.
Also is there thermal paste in betweeen your CPU and your heatsink? You need some to efficiently transfer the heat from your CPU to your heatsink.
What does it say your temperature for your CPU is in your BIOS? If it's over 50 you've got problems with your heat sink as I mentioned above.
Also have you tried pressing F8 right after reboot and going into safe mode? Does it work like that?
Is your OS your own and a legal copy?
Edit: Are all your parts seated properly? Is your ram correctly seated (with the locking notches on)? Your video card?