Question about AMD Sempron 3100+ 1.8GHz 256k Socket 754 CPU Retail (GXCPUS3100)

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. Led will light up but cpu does not power up.

When i hit the power button on the tower it lights up but the computer does not boot up. As if the motherboard was not receiving power

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You don't indicate if there are any beeps. It could be RAM or the Power Supply.Did anything strange happen the last time it was running? When you turn the button on, does the fan in the back spin? If it doesn't, it's definetly the power supply.

Posted on Jun 03, 2009

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Does the CPU fan rotate? And no monitor activity? Sometimes the hard disc has some kind of activity. This could be attributed to loose/failed in memory in the syste. You can try to reseat or clean the memory edge connector with clean eraser. But power down first yur unit and unplugged to wall socket no power connection shall be connected.

Sometimes it doesn't make any beep code. If beep is generated this could be video problem. But check first the Ram and video, before getting to anything.

Post an update.


Posted on Jun 03, 2009

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Dell Dimension 3100 won't boot; keyboard fell off the table onto the tower; am getting 1-3-2 beep codes. Is this fixable?


Just because they hit the tower should not have hurt anything.

But, you should turn it off, pull the power plug, then hit the power button, then again and make sure the lights don't turn on or flash.

This make's sure that all the power is gone from the motherboard.

Before you touch the inside, make sure you touch metal, so you don't static shock the motherboard.

Now open the the side up. I would remove the two power connectors, one should be a 20-24 pin and another 4 pin.

Reset them to make sure they didn't come lose.

Check the HDD, hard drive plugs, fan plugs, the CPU fan plug.

Then check the monitor connection, and any on the back.

Try the monitor on another PC, or a monitor from another PC on this PC.

A hard shock to the power supply unit (PSU ) can kill it, it can still turn on the lights but not have the voltage to run it.

If you do all this and are safe and careful checking inside and out, then you might have to take it to someone who can test it.

You can also download the manual so you know what it looks like inside the PC and what the motherboard looks like and how you would set it up when new.

Good luck.

Mar 31, 2013 | Dell Dimension 3100 PC Desktop

Tip

How to disable LED light in a CPU fan


<p>Some desktop computer towers, also known as a processor with decorative LED lights on the fan. LED means light emitting diodes. This is a small, lightweight, durable savings of energy that goes into a variety of colors. It connects to a device with two metal terminals of the connector is similar to a power cord. This can affect a beautiful, but can also be irritating. If the computer in your bedroom at night, these lights can affect your sleep, so it's important to know how to turn off the LEDs on the fan. <br /> <p><br /> <p>1. Remove the computer side. Tighten the screws on the side of the CPU. Slide the face up and away from the side of the CPU. This ensures that the fan and the LED lights on the computer. <br /> <p><br /> <p>2. Pull the LED on the bottom and away from the fan with a plier. Hold the head with an LED light pressure and drag it to yourself. It is easily accessible from the release of the fan, because it only comes with two small clips. <br /> <p><br /> <p>3. Flip the CPU. Slide the side in the slots on the CPU. And tighten all the screws through the holes on the side of the CPU, making it in a clockwise direction. <br />

on Jun 22, 2011 | Computers & Internet

1 Answer

I have a Dell Dimension E521. When I cut the power on everything comes on including the monitor, but the monitor will stay black. It does say something about power save hit any button but the screen


A solid green light means the computer is operating normally.

A solid yellow light indicates the power supply is operating normally but the computer is not processing data.

This could mean there is a problem with the CPu or another component on the motherboard.


((A blinking yellow light indicates the power supply is receiving power from the wall, but not functioning properly.
This generally means the power supply itself is bad and should be tested or replaced.))


A blinking green light means the computer is in standby mode.

You should consider visiting Dell Support and downloading the manual for your

your Dell computer. So use the LED power light codes if your Dell computer has them.

hope this helps

Sep 10, 2012 | Dell Dimension E521 PC Desktop

1 Answer

When I hit the power button it wont turn on. I have replaced the RAM with a known working DDR400 1GB stick, no fix. Tried switching power supplies, no fix, tried new videocard since when it was last on (a...


When you say the CMOS is set to reset, this should not be the case for normal usage. and maybe the problem if left in the on position the system will not start (which sounds like your problem).

Mar 18, 2011 | DFI NF4X INFINITY Motherboard

1 Answer

Dell 4700 desktop, will not boot up. Light remains


A solid Amber power LED is an indication of a motherboard problem. Remove any external connections and see if LED indications change. If no change, remove all PCI expansion cards, try again. If still no go, disconnect all drives, try again. If still no change, ensure the CPU heatsink is firmly attached (If loose you need to replace the retention module) If nothing loose and no changes from other steps, replace motherboard

Mar 11, 2010 | Dell Dimension 4600C PC Desktop

2 Answers

I have a dell optiplex sx280 computer and monitor that has lapsed into ''power save mode'' and I have been unable to ''awaken'' it (I'm not sure which is ''asleep'': the monitor or computer!) from sleep. I...


How's the status light of your computer monitor? is it blinking amber? and the status light of your computer tower's power button? blinking amber as well or solid green or no light at all?

1. Disconnect all the connection at the back of your computer tower
2. Press the power button of the computer tower for 15 seconds
3. Reconnect the power button and the monitor cable at the back of your computer tower and turn on the computer (if it turned on that means that one of the device plugged at the back of your computer tower is faulty)
4. If still the same problem, open up your computer tower.
5. Reseat the video card, Reseat Hard drive, Reseat Memory, Reseat CPU, Reseat power cord coming from the CPU to your computer (doing all things one-by-one to pin-point the root cause of the issue)

If none of the troubleshooting steps fixed the problem, possible that the power supply is faulty and if the power supply is faulty sometimes it goes with the motherboard.

Jan 08, 2010 | Dell OptiPlex SX280 PC Desktop

1 Answer

My vostro 200 slim tower wont turn on PLZ READ FULL


There could be a hardware problem on the computer if the power button led light is "Orange/ or amber", if you can open the computer, try removing one memory card at a time and see if the power button will change.

Dec 15, 2009 | Dell Vostro 200 Mini Tower With 20" Flat...

1 Answer

Power LED on but no boot up


it could be your power switch, veriy that it isnt the power supply by

1.) un-plug it from the main board
2.) look at the main board connector(one coming of the power supply)
3.) you should see green wire and next to it a black one
4.) using a paper clip bridge the too wires
5.) if it works proceed to net step if not get a new power supply

to check case switch and board switch

1.) plug in power supply to main board
2.) look at the pins where the power button connects to
3.) using a metal object (blade screw driver) bridge the pins

if the board should start up>
then its your power button on the case that is bad, you can try to repair it, chage it or buy a new case,

if it doesnt work.
1.) ensure that jcms(jumper to flash the bios) is set correctly
2.) unjack each drive one at a time to see if any is causing stalling
3.) get a new main board

Jan 02, 2008 | EliteGroup L7VMM2 Motherboard

2 Answers

Power LED on but no boot up


Its the Mother Board..I had the same problem and had to have a new MB put in

Feb 17, 2007 | Gateway (4000811) Motherboard

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