Question about Dell (S423) for Dimension 8100 (3F546) Motherboard

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Can't turn my compuer on

I have changed the mother board and when i connect the plug the computer automatically turns on but the monitor stays blank.I have checked the monitor with another computer and the monitor works fine. All the cbles are connected correctly

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  • BLACKISKNOWL Oct 20, 2008

    I CAN NOT POWER UP MY LABTOP

  • T_Byrd653 Dec 07, 2008

    I have a Dell Dimension 8100 that won't turn on. Power is on, Monitor is good, splash screen won't come up, The computer will not start

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Check on *********** board that your CMOS jumper is in normal mode otherwise change it - also check any beep sound aswell as you remove all the cables ie.. IDE cables, front panel cables I mean only the 2 power cables to the motherboard and try to start the pc by shorting the power switch pin with a screwdriver see the display coming or not ????

IF it is a branded pc - you have to buy the same companies motherboard, normal motherboard will not work with branded pcs.

Posted on Sep 27, 2008

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My hppavilion f1503 flat panel lcd monitor screen stay blank


The monitor should be plug and play, and you've already figured out that it's not your computer by plugging into a working monitor.

This is most likely the power inverter board in the monitor - this is common in many monitors. If the power light is blinking on-and-off, or just staying on with no image, that's the problem. There is a slight chance that it could be the light itself, but inverters fail more commonly.

If it's under warranty, send it back, if not, there are inverter boards for many common models of LCD monitors that are replaceable. The board can run anywhere from $50 on up. Depending on how old it is, you may find it better to just replace it with a gently used one from ebay.

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2 Answers

After monitor is turned on, it goes blank after a few seconds...


Sounds like the cable that connects the monitor to the computer hass a loose wire connection in it.
When it turns green, try flexing the cable near the connectors and see if the color changes on the monitor. I suspect that you have a wire in the cable that was not soldered properly by the manufacture.
If it changes color, I'd contact who you bought it from and have them replace it.
Hope thid helps. Bud

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Computer boots fine but the monitor is blank


if the monitor works fine on your laptop, the problem definitely is at the computer, possibly with the video card (if it is using one). it could have loose connection, or parts might have damages. it seems the problem is intermittent so electronic component of the video card could have parts partially damages or leaky components.
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Blank screen


When you say "When I turn on the computer the monitor acts like it is getting no power", do you mean the light on monitor doesn't come on or it does and it states it has "No Signal"? If it says no signal then it is receiving power just no signal from computer. What kind of connection is it? Digital(white) or analog(blue)? Is the keyboard wireless or is it PS/2?

If the keyboard isn't wireless and you're plugging the monitor in correctly I would say it's a power supply issue. Try changing the outlet you're using and/or bypass the surge protector to plug directly into wall.

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3 Answers

Computer turns on, but there is no display on monitor.


my goodness.. you have spent a lot in your computer i think.. i dont think changing mother board and installing a new vedio card will solve this problem.
as u have said that u have installed a new card make sure that you are giving the connections of your monitor to the gforce card and not to the mother board again.

if connection for monitor is going for gforce properly your RAM is the problem. as per your configuration its single 512mb ram. i would advice you to go and get another DDR RAM(same 512 prefrably) from any of your friend and put it in you mother board in by removing the normal RAM you had.
this will work for sure i think.
if this is not working dont rate me in-approtiate. i just triend my best. sorry and tahnks.. good luck

Dec 28, 2007 | Computers & Internet

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