Recently, I was encoding in Premiere Pro when I started to hear a high-pitched noise coming from my PC, quiet but still audible; within a few seconds my PC shut off. When I turned it back on, it turned on fine but there was no display on my monitor, just blank. I checked the VGA Cable, all was fine, I tried taking it out and putting it back in again, still no display. Here's some other things I've tried:
- Switching the PCIe slot that my GPU was in.
- Changing GPU. (tried the above with the 5450 at first then the X1600)
- Hooking it up with a different monitor. (a TV)
- Resetting the CMOS.
- Trying HDMI instead of VGA.
- Taking RAM out to listen out for "beeps". (in which I heard none)
Still, no display. An interesting thing is when I press the open button on my CD Drive, it opens, and then it closes straight away, automatically. Another interesting thing is that there are no lights on my mouse and keyboard when I turn it on. Usually when I turn my PC on, the red light underneath my mouse and the yellow lights on my keyboard come on to show it is being powered and working.
PC Specs (if they may be useful):
AMD 8120 CPU (3.1Ghz OC to 4GHz)
Gigabyte GA-DS3-970A Motherboard
AMD Radeon HD 5450 1GB
8GB of DDR3 RAM (GeIL 1333 MHz)
Corsair 650W Power Supply
Seagate Barracuda 360GB HDD
Samsung DVD-RW Drive
Zalman Z9 Midi ATX Case
Apart from getting no display and the cd drive acting weird, everything else appears to function fine. The LED lights come on on the fans and RAM (as normal), all the connected fans spin as usual as well as the optional light for my PSU. The LCD temperature display on my case (which connects to pins on the MoBo) works fine as well as the Fan Controller on my case, which is also linked up.
Anyway, no idea what's going on here. I'd be more than happy if someone could help me with this.