Hello, My name is Ian. I have a very strange problem. i had a new power supply installed in my computer. Since the new install I started having start up problems.
First: I could not start the computer if any USB was connected. I could pull all the USB cables out and then it started. Then It got worse...
Now, when I want to start the computer I must first remove all USB than I have to reomve the side panel and disconnect the ATX power connecter for a few soconds and reconnect it. When I reconnect the ATX all the lights and Fans will activate for a second and then I can push the power button. Sometimes I will have to do this a few times for it to start, disconnecting ATX and reconnecting. I have noticed that the computer transmits a small pulsing sound through the speakers when it is turned off but still connected to the power. Funny enough every time I remove a USB device the pulsing becomes quieter.
This prblem is just a wee bit annoying but I can live with it.
Power supply is: Antec Neo HE500
Mainboard is: Foxconn K8M890M2MA