This is the second time I've had to post this (Guess the topic title had an identical one here already). Attempt 2:
Okay, I left my PC on overnight about a week ago and it kicked off around 12am. I checked it the morning and it didn't work. The fans would kick on, disk drives would spin, but the monitor didn't pick up anything. The LED on the monitor just blinked.
I put my ear near the power supply while it was plugged in and turned off and I could hear a buzzing sound. I figured the power supply was half dead and I needed a new one. So, I went on new egg and purchased this Power Supply:
I'm trying to get this power supply for a motherboard from a Compaq Presario 7478:
The original power supply died and the PC was thrown away. Seeing that this was an upgrade to my even more outdated gateway, I took it and put the power supply from my old gateway into this one. It was smaller in size, but it still powered the computer. Now, that power supply died and I got this brand new one for it.
I got everything plugged in and turned the PC on. Still, the same problem. I've tried two different Mobos, with onboard and pci video card, and two different monitors (my bro's monitor is indeed functioning, but not on my computer). Is the power supply I purchased not enough for the task?