Aspire UD 440N with no video

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muckmail

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I have an Acer Aspire ASE380 UD 440N with no video output. Where do I begin to trouble
shoot this machine. I does not have a hard drive install but If it was working properly
I would think I would be able to get to BIO's
Thank you,
 

Oddba11

Jim
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Disconnect/remove everything except the motherboard w/cpu and the power supply. Boot and see what happens. You should get BEEP/ERROR codes for missing RAM. If not, you have a motherboard/cpu/power supply issue. If you do, then install the RAM and try again.
 

muckmail

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Ok,
I removed the ram form the motherboard and power the computer. I get one continous
beep. Now what should I do?
Thank
 

managed

Allan
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Shine a flashlight on the screen and look carefully, is there a display ?
 

muckmail

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I do not see a display with a flashlight shined in it but I am unsure what I am looking for.
Screen appears black.
The fans on the motherboard turn on.
When I push the power button on the outer case to turn the the machine off it does not go off.
So it maybe the power supply, motherboard or CPU?
The continous beep is still there.
Thank you,
 

muckmail

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I have notice that a heat sink on the CPU is very dirty. If I cleaned it and reseat the processor.
Would that help?
Thank you,
 

Oddba11

Jim
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Yes the cpu heatsink/fan should be cleaned. Don't remove/reseat it.

Continuious beep should be an indication of missing RAM. So, as noted above, reinstall the RAM and test again. Is it onboard video or a video card?
 

muckmail

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It is on board video. Earlier I tryed putting a extra video card in a slot. That did not work
so I removed the video card.

I put both ram sticks back into the slots and I turned it on and there was no beeps.
I noticed that the CPU and cabinet fans came on.

How do I continue my trouble shooting process?

Thank you,
 

managed

Allan
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I was thinking it was a laptop but even if it's a desktop sometimes the screen's back-light can fail but shining a flash-light at the screen can reveal a faint display.

Try resetting the Cmos by removing the coin shaped battery and/or moving the jumper.
 

muckmail

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I removed the coin shaped battery and did not notice any change.
I put the battery back in the mother board and did not see any changes.
still no video.
What should be my next step?
Oh yes, it has on board video. It is a desktop.
Thank you,
 

muckmail

Thread Starter
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I may have an extra power supply I could use for testing.
I might also have a processor I could use for testing.
Thank you,
 

muckmail

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I found some numbers on the motherboard.
They are N1996, 02010FM00-499-G and 001D92991BC1
Does acer have custom motherboards. I did not see a motherboard manufactures
name on the board.
Thank you,
 

Oddba11

Jim
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02010FM00-499-G appears to be a Gateway motherboard part number
 
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