Question about Intel Motherboard

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No display on screen and solid amber light on pcs' power button

I've replaced the motherboard on a gateway 700x desktop pentium 4 computer thinking it would resolve the issue of no display on the monitor and a solid amber light on the computer's power button. I've tried other video cards that I knew were working. I've swapped cables, power supplies, and memory cards and nothing works. I've tried everything but a new processor. Need motherboard for Gateway MX6448 Laptop.

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  • edabinette Sep 13, 2008

    same issue. replaced mobo, tried othervideo cards, tried other hard drive, fans spin, what else can it be?

  • Anonymous Mar 28, 2014

    Durring a sesion , the screen went blank , and the on button went from solid green to blinking amber . I held the button down , but no avail , same with disconnecting the power source .

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Shitless

Posted on Jul 04, 2008

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  • 191 Answers

It seems to be an issue with the power supply as you already tried replacing the motherboard
power supply will be less expensive do try to get it replaced first

do check that monitor iss fine
unplug the blue VGA cable which connects your monitor to the tower
if a 4 colored box moves all over the screen the monitor is fine
and if it doesn't
get the monitor either repaired or get it replaced.

Posted on Jun 06, 2008

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What do the diagnostic led lights show. The diagnostic LEDs are located on the front of the chassis next to the power button. These diagnostic LEDs are only active and visible during the POST process. Once the operating system starts to load, they turn off and are no longer visible. Below is the manual that provides information on what the led pattern shows to help resolve the issue.
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The problem may be serious and not worth fixing (motherboard).

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This is what I posted a while back concerning the above. Obviously I cannot bee 100% certain as I do not have your box in front of me. This a known issue.

--------

See if the power light goes amber after power up. I had (have - still siting in my basement) one that did same. Power up, fans go full blast . Power light goes and stays amber. This is USUALLY caused by bad capacitors on the mother board. Known GX280 problem going back. If you look on the motherboard, the capacitors should have flat tops and not leaking. If the are rounded or leaking, the MB has probably gone bad. Bottom line this is usually a defective motherboard. Mine was a bad caps issue, you issue could be different, but it does sound like the motherboard.

You can google "gx280 solid amber light loud fan" and see the issues. Here is one link.

http://community.spiceworks.com/topic/111476-gx280-solid-amber-light-and-loud-fan

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No display on screen and solid amber light on pcs' power button


Well hate to say it but that sort of problem results from a faulty motherboard or processor so if you say that you have changed the motherboard then you problem lies with you processor chip.

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1 Answer

No display on screen and solid amber light on pcs' power button


To el_cid_132: Did you mean to say a solid amber light on the MONITOR's power button? If, after all you've tried with the computer, you still have no display, it's a pretty good bet your monitor is bad. Try another monitor to verify the computer function. Take a close look at the pins in the monitor's input cable plug. They are pretty easy to bend, and you may have one not making contact.

To Jaffe: It's a simple job to remove the hard drive from your laptop and hook up to another computer to copy anythig off that you want to keep. I don't know what a shop in your area would charge, but it should be reasonable. As for replacing the system board, a quick Google search for "MX6448 motherboard" turned up several sources, price range $250-$300. Usually it's not worth putting a new system board into a laptop unless it's a very high-end model. You can buy basic laptops now for around $400, and you'd be getting brand-new with a warranty.

Jun 05, 2008 | Gateway (4000779) Motherboard

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