My 12V rail on my 120V AC ATX PSU that's powering the M4 is dropping to 9.5V when the PC is on!
But I had this exact same problem when it was in the car, running off 13+ V and God knows how many amps...
Old Systems retired due to new car
New system at design/prototype stage on BeagleBoard.
I added another 12V to feed the M4, and loaded down the 5V output with my pump...
No change to the V to the M4...and no change in my problem...
At least I got confirmation about my OPUS being shipped out...
If I STILL have the problems with THAT PSU, I'm gonna throw my carPC out 'da window!!!
Got this reply from Mini-Box...
1) For troubloeshooting purposes, use another monitor. If you no longer see the intereference on another monitor, you have a bad monitor design.
2) Try a different VGA cable. Shorter is better. Thicker is even better.
3) Do not ground your PC to the Car chassis. Cars are nery nasty ground enviroments.
4) If you have any other peripherals hooked up to the PC, try removing them one by one and see what's causing the interference problems.
5) Most important: Never use the car chassis for a ground tap. Go strainght to the battery for both Positive and Negative wires.
6) Try to power the monitor from the same source, from the same point. Example: Do not power the monitor from your cigarette lighter and your M4-ATX from battery.
None of this helps me though...
Audio: 4 * Rainbow Audio Germs + Infinity Basslink / Case: iStarUSA S3 / CPU: C2D P8700 / MB: Jetway NC64-LF / SC: ASUS Xonar Essence STX / RAM: Crucial 2x1GB 1066MHz / HD: MTRON 2.5" 30GB / DVD: Panasonic UJ-815B / PSU: Opus 180w / LCD: Xenarc 700TSV
Thank god my Opus worked right out of the box.
I would have spent a month going in circles if I'd had PSU problems.
I'll be anxious to hear the outcome of this one.