M2 ATX - EN15000 - USB - Problems!

**BulleDK** · 08-03-2006, 06:51 PM

Hey i'am almost finish with my installation in my car... But as your guys knows, you will never finish

My Problem is...
When i start my car (cold start), the system is booting perfectly (some times windows change my display setting in bios to LCD, so i'cant see anything when booting into windows)

When i shutdown, and start again, i get blank screen, when i pull my USB Hub (it's powered from M2 +5v Molex pin) and try again its working ok!

In my USB HUB i have connected USB DVD (powered from M2 +5v Molex), Touchscreen, Ruwido Wireless Keybaord+Mouse, Bluetooth, the USB HUB is in front connected to the computer in trunk with 6m USB cable

What can it be?

**FC3S** · 08-04-2006, 11:29 AM

more than likely your touchscreen is trying to start before windoes has the drivers in place for it

so, turn on your touchscreen, after the computer has booted?

**BulleDK** · 08-05-2006, 11:30 AM

Originally Posted by FC3S

more than likely your touchscreen is trying to start before windoes has the drivers in place for it

so, turn on your touchscreen, after the computer has booted?

I tried to unplug my touchscreen cable, but no help!

**BulleDK** · 08-05-2006, 10:05 PM

But if i unplug the power-cord to usb-hub and the usb cable, the computer starts perfectly witout any problems!

As i describe before in post #1, i'am using the power to usb-hub from one of the free molex in my case!

Please help!

**BulleDK** · 08-10-2006, 10:38 AM

anyone! please help!

**PeterFox** · 08-24-2006, 07:45 PM

I had a similar problem with mine, using the molex connector from the PSU to power my touchscreen. The computer kept restarting when it was plugged in. Then I changed the monitor wires to be powered directly from the car power system, and the computer started up just fine. I think the monitor was drawing too much power, and so too might your USB Hub. This is all just based on observations, but see if you can power it another way.

**BulleDK** · 08-27-2006, 07:46 AM

Originally Posted by PeterFox

I had a similar problem with mine, using the molex connector from the PSU to power my touchscreen. The computer kept restarting when it was plugged in. Then I changed the monitor wires to be powered directly from the car power system, and the computer started up just fine. I think the monitor was drawing too much power, and so too might your USB Hub. This is all just based on observations, but see if you can power it another way.

Thanks! i will try that

**afterdigital** · 08-27-2006, 07:18 PM

curious

how it go?

**BulleDK** · 08-28-2006, 12:58 PM

Originally Posted by afterdigital

curious

how it go?

No change! didn't help! But i found out that, when i only unplug the power to the usb hub, which i get from 5v molex its working!!!

So it might be something with the 5v, but where else can i get the 5v??

**proph** · 08-28-2006, 11:03 PM

If you can't get it from the power supply I'd ditch the psu... I have the M2 ATX also w/ the Jetway C7 25w version in a VoomPC. I'm having issues w/ my USB DAC (crackling when powered by CarPC). I'll chime in later if its indeed low voltage on the USB.