You won't see a voltage change. You have to measure continuity.
I had this same symptom with a defective M4. What happened was the PSU would signal the PC to start but NEVER LET GO of the start signal. It works exactly the same as if you held down the power button on your PC and kept it held down. The PC will start but the power button signals it to shut down after being held for 5 seconds, so it shuts down.
You must be measuring it wrong *OR* the cable you are using is shorted. The mobo will only power on if it detects continuity to ground (if it is ACPI compliant). Otherwise, it wouldn't start up at all.
machine time to shutdown gracefully.
I havent gotten a response from 2 emails i sent to the store. should i just mail it back?
it is a holiday week/weekend, so you might need to wait until after new years for a response..
My 2001 Mitsubishi Eclipse GT:
"The Project That Never Ends"
more projects then time!
Led Skyline Tail Lights--100%
High Power Led Reverse Lights--100%
Led third brake light--100%
Led front turn signals--0%
I'm sorry we didn't get back to you earlier on this. It seems your first email fell through the cracks. I apologize for this. It seems like your first ticket was closed by mistake.
Your RMA has been issued and we'll get this replaced for you as quickly as possible.
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Have a car computer question? Ask me by emailing the store.