Humming, Crackling and Lines onscreen
I have just finished setting up my second PC install, the system consists of Jetway 2Ghz Mobo, 1gb Ram, 100GB SATA 2.5" HD, Bluetooth Reciever, M2 ATX PSU, GPS USB Receiver and a 7" Touch screen TFT.
I set the system up inside the house and tested it using a Meanwell 350W 12V PSU, everything was fine EXCEPT for the screen where i could see lines going across it -moving up down like the old tellys. I didnt think much of it.
now i have the system setup in the car the noise coming from the speakers is horrible - loud humming unless i turn the volume up and i cant hear it. Its NOT alternator noise as i tested it with the car on IGN.
The ground is a factory ground, both the amp and carpc are using the same point.
I TRIED different audio cables, moving the cables around, tried it with the internal sound and my external Live 24, tried taking everything USB off (except touchscreen) - all have the interference.
Could it be that i am using a custom plastic case? or Could it be a dodgy mobo?
Really p**sing me off now .. . .:laser:
Any ideas are welcome.