Question about Acer AX1900-582G50mi PC Desktop, Intel Pentium Dual Core E5800 3.2GHz

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Acer ax1900 does not start

The power button works, the coolers gonna run but there's no beep and the monitor says no signal.

Posted by Anonymous on

4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Acer Aspire M1100 no signal to monitor when starts

Got the same model. Had the same problem.
Play with the memory sticks.
Remove all but one.
Swap out memory for different memory.
Worked for me.

Posted on Feb 03, 2009

leecom72
  • 4806 Answers

SOURCE: Get NO SIGNAL on Acer M1640~Monitor is Fine~Is CPU

Try removing the system memory and clean the brass contacts and the slots it goes into, then reseat the memory and try to boot again, the memory looks like this >>>>>>>

6348121.jpg



Good luck

Posted on Jun 28, 2009

  • 1015 Answers

SOURCE: Acer AM5641-U5520A will not

If you removed the memory modules and there is no change then I would start disconnecting one device at a time to see if that is causing the problem. Start by disconnecting the cd/dvd rom and then try booting the computer. Then try disconnecting any floppy drives or pci cards(except for video card). If it has a pci/agp video card then you will need to remove it and test it in another computer or test a working one in the problem computer. If it has built-in video then you will need to test a working video card in the problem computer. It could also be an issue with the power supply so remove it and test it in another computer or swap it out with a known working power supply. Also check the mother board screws that hold the board to the chassi are tight(the board uses them as a ground). Blow any dust out of the case and verify that there are no loose connectors. Also verify that the monitor is not the problem by testing it with another computer. Usually when a CPU is defective the computer will not respond to anything and will act "dead" so it does not sound like the CPU. If everything else checks out then it could be a bad motherboard.

Posted on Dec 28, 2009

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Bad Power Supply

Weak voltage power rail

Do you, or your friend have access to a multimeter? An economical unit can be purchased for as little as $8 to $12. Available in a multitude of stores. An auto parts store is but one example. Analog or digital is fine.
This way you can test the 3 main voltages coming from the Power Supply.

A) 3.3 Volt power rail
B) 5 Volt power rail
C) 12 Volt power rail

(All DC voltages. In comparison, two D cell flashlight batteries store
3 Volts DC. { 1.5 Volts each )

OR; do you have a KNOWN to be good, Compatible power supply you can borrow for a test unit?
Compatible: Has to have at least the same Wattage, or more, and has to have the correct power cables, and number of power cables needed.

Primer:
1) If ALL of the LED lights were on at once, they would use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor can use 51 to 125 Watts of power. Just depends on what Processor it is.

Your Power Supply doesn't have enough power to 'b-low it's nose'.

Nothing shows on monitor? It isn't going to. No Signal. No video signal.
This is because the computer isn't sending one. Why? Because the computer isn't working.

Let's start with this. Post back in a Comment as to your results.
Regards,
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It sounds like either your monitor or video card inside the computer is bad.

If the monitor is showing the "No Input Signal" message then the video card inside the computer is bad. The monitor is ok otherwise it would not be able to display the No Input Signal message.

When you plug in the power cord is there any lights whatsoever on the laptop, where the plug goes in or on the AC Adapter of the power cord?

When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the computer is trying to boot or may have booted, but the screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the laptop and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe you have a Static Charge Buildup. Remove the Power Cord, then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in and hit the power button to see if it boots.



Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Open the Case and remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

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Is there any message that appears when you turn the computer on? Does anything post to the monitor during the boot process? Normally if the Video Card goes bad and the monitor works you will get a No Signal message on the Monitor. So you are so sure the monitor works, huh?

Since you went inside the computer check and make sure you pushed the Video Card (where the monitor plugs into the back of the computer) into the slot all the way.

Maybe your Power Supply is not working. When you press the power button do the fans start running and you hear the disk drive spinning? Just because you see a light at the the power button or on the motherboard does not mean the Power Supply is working correctly. I just changed one that did that.

Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.You didn't by chance remove the Heat Sink and CPU while you were removing the fan did you? If you did, you probably need to apply a fresh coat of Thermal Past between the Heat Sink and CPU.

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I had the same issue as yours. After contacting the Acer support team, I got the response as follows. I tired and it worked.

"In order to resolve this issue, you may please perform a power reset. This will remove any static electricity stored in the hardware components that may cause the issue.

- Turn the monitor off and unplug the power cord and VGA cable from the monitor.

- Hold the power button on the unit down for 30 seconds.

- Release the power button and plug only the power cord back into the unit. "


Hope it helped.

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