M2-ATX Powering Issues

**kraimer21** · 05-29-2009, 07:08 AM

Originally Posted by skeet2331

When it was on a bench test did you try it without the M2ATX? Did you put it on a normal PSU?

Without the M2, everything works flawlessly. When trying to power with the M2, the green led on the MB goes on for a second and shuts off right away. Safe to assume that the M2 is toast?

**kraimer21** · 05-29-2009, 08:06 AM

after reading the installation manual again, I realized that the jumpers are set to P4 - 30seconds + 1min AutoLatch - does the led lighting up and turning off right away represent the ON pulse and then it waits 30 seconds before it provides power to motherboard?

**roflcopter** · 05-29-2009, 03:24 PM

try setting it to p0 mode. standard atx mode. just take off the jumper. and it should turn right on when you flip the switch. i use P1 and it works.

if not, i'd still check the voltage on your 12v rail. if its under 11.2V, the system won't turn on.

also, i read somewhere that you need may need to short another two wires on the atx connector on your PSU. pins 8&9. they are the "stay on" wires on some power supplys.

was in this thread: http://www.mp3car.com/vbulletin/faq-...workbench.html

**kraimer21** · 06-01-2009, 06:50 AM

roflcopter - thanks for the advise. I actually tried that before and still wasn't powering on. After playing around a little more and leaving the P1 setting, the computer powered on and now everything works perfectly.