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No signal on monitor and power in USB ports

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  • Homebuilt
  • USB
  • Systems
Last response: in Systems
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March 21, 2012 11:33:53 PM

Hey,

I seem to be not getting signal form my motherboard and I realised that my usb port wasnt getting any power (a brief light up on mouse/keyboard, and then nothing).

All the fans cept my back exhaust fan (connected to MOBO) are working, and so are the LED lights.

I've re assured that all the wiring is connected correctly, reseated every chip, reset CMOS, tried different PSU*** and GPU and boot with one stick of ram.

I get no Beeps and I never had any beeps from my computer before

*** when I changed the PSU from 300w to 400w I had an output on the monitor. Displaying my start-up page before bios, display some sort of texts and turn off again. When restarting it again I get absolutely nothing. Reseting the GPU again with the 400w plugged in I get the same screen and the computer powers off again.

I'm starting to think its my MOBO.

please help!

PS: Very old build

More about : signal monitor power usb ports

a b B Homebuilt system
March 21, 2012 11:52:55 PM

ekimera said:
please help!PS: Very old build

You'll get more help from these boards if you list your spec's. :) 
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March 22, 2012 1:32:43 AM

400w coolmaster PSU
6450 1gb ATI GPU
Intel Pentium D 2.8 ghz
Can't find the MOBO
2x (4gb) ddr2 ram
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Related resources
March 23, 2012 12:23:46 AM

P5LP-LE mobo
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a b B Homebuilt system
March 23, 2012 4:50:13 AM

ekimera said:
P5LP-LE mobo

Sorry for the delay.
You know that your GPU requires at least 400 watts? While not a bad PSU, your coolmaster's size doesn't leave much for anything else. I'd go 500 - 550 watts minimum.
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April 1, 2012 9:19:51 PM

Chaz21 said:
Sorry for the delay.
You know that your GPU requires at least 400 watts? While not a bad PSU, your coolmaster's size doesn't leave much for anything else. I'd go 500 - 550 watts minimum.



alright ill try a 550w Thanks, ill get back to you on the outcome.
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