about 3 weeks ago my Power Supply Unit(PSU) started making a disturbing noise... I ignored it planning on getting a new PSU as soon as i could. I wasn't having any problems except for having to always turn the pc on twice before it would boot up properly.2 weeks ago i turned the PC off and then tried turning it on again a few hours later but nothing shoed up on the screen. There were a few clicks coming from the mobo as soon as i turn the power on which didn't used to happen. Everything else sounded like it was working properly, But its hard to tell what was happening without being able to see anything on the screen. The PSU was still grinding. It was a 500W.Then 1 week ago i got my new PSU (500W) and installed it and everything was working fine. No clicks, no noise, nothing! I used it about 5 times over the last week with no problems.Now this morning i tired turning it on and the clicks were back! it's def coming from the Motherboard. The new PSU is working fine-no noise.help!I forgot to mention that nothing displays on screen .. Maybe bios is loading but theres something wrong with the display adapter? Or maybe bios is not loading... after the 11 clicks however there is the normal beep .Also, If i disconnect the ATX_21v the clicking stops.. but obviously Nothing displays on screenof course i mean AT_12vOkay i found the culprit.. its my geforce 7950GT card making the clicking. .. i disconnected it, used my old display and everything works. ... but what does this mean for my graphics card? is it fried ?My graphics card could be damaging my PSU?i didn't know this was possible!Yes my new PSU is a lot better quality than my old one... same 500watts.I have also heard this clicking could be due to a power modulation problem...