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Computer won't power up ---- no green light, no fan activity

Hi all,
I came home yesteday to find the computer off. When I tried to turn it on, nothing happened. As above, there was no noise, no fan activity, no green light -- nothing.

I took off the shell (its a Dell by the way), and noticed a green LCD lights up inside. But nothing else happens.

This also happened when I returned from a week-long trip a few months ago. I messed with some stuff inside, and voila, it worked. No such luck this time.

Do you think this might be an easy fix? It's obviously power-related. Something that Best Buy or Geek Squad can fix, or do I need to go through Dell?

Thanks very much!
P.S. This is my first post!

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call dell first

In reply to: Computer won't power up ---- no green light, no fan activity

since you didn't mention what things you "messed with" I can't give you any good advice except to find your 'real' power switch. The button on the case usually activates another switch, sometimes via a lever. Sometimes things get a bit out of alignment so the case button never activates the 'real' switch.

But call Dell first before you spend any 'real' money.

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Power Supply

In reply to: Computer won't power up ---- no green light, no fan activity

Hi there, sounds like your power supply. Geeks Galore can fix it for you in a flash, you can call us at 613-472-2017

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If you're not comfortable. . .

In reply to: Computer won't power up ---- no green light, no fan activity

with ''messing with it'' again, then do what is most convenient to you. Carry-in will save a few bucks in an in-home service call.

I'd call Dell, in warranty or not, they should be able to tell you where an authorized repair center is located. If there are none, then I'd find someone locally such as Best Buy or CompUSA.

It sounds like something is loose on the power supply end, but in normal practice, things shouldn't get loose.


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I've been there

In reply to: If you're not comfortable. . .

This EXACT thing happened to me recently. Turned out it was the bios battery on the motherboard. Just replaced it and everything cranked up just fine.

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Bios battery?

In reply to: I've been there

Is the Bios battery just the little 3V battery in there that you can buy from Wal Mart?

I'd gladly try that.

I haven't noticed any clock issues though...wouldn't that be a tell-tale sign of the bios battery dying?

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Power Cycle

In reply to: Computer won't power up ---- no green light, no fan activity

Just unplug yru comp from the main power source,
then keep the power button the CPU pressed for 30 sec.

this may fix the problem, its called power cycling yur computer,
Hope it helps.
Shine Raj

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I've done this a few times

In reply to: Computer won't power up ---- no green light, no fan activity

I work on Dell PCs at work. Unplug everything from the power supply. Drives...motherboard...power to the wall (which should have been step one)...everything. Note the fan inside the power supply. When you plug the power from the wall into the power supply, the fan should move. If the fan doesn't move, you have a dead power supply.

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What if its the power supply?

In reply to: I've done this a few times

Is that something that Best Buy can replace/fix?

I'm not savvy enough to unplug everything from the power supply, but I will try the "cycling" suggestion.

Thanks all.

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In reply to: I've done this a few times

I have a Dell Optiplex Buisness machine and i've noticed that the fan turns on for a slight moment then turns off, I also had the same problem and used this piece of info and determined that i needed a new power supply

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In reply to: Same

I'm still trying to determine what that means that I "need a new power supply."

Where do I get one?
How much are they?
Who can install them?

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power supply

In reply to: Ok...?

decent power supplies run anywhere from $40 to over $100 depending on wattage. check out circuit city/comp usa. anybody with computer experience can replace one. you could probably do it yourself.

since you still have a lit led on the mobo, i question if your power supply is really dead. the rear of the power supply should have a rocker switch that you can turn off. (its equivalent to pulling the plug... even when the pc is off, the power supply is still sending juice to the mobo. that's why the green led is on.)

did you remove the front bezel and check the power switch? is the button on the case activating the power switch?

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Its the big box that you plug the power line into

In reply to: power supply

Thats to put in in non technical terms, i happend to blow the power supply on my self-built pc but as luck has it i just got a new HP computer, DELLs suck Happy
(unless you build it yourself)

To replace it there should be a tray to hold it in just remove it from the tray and replace it with another similiar supply.

DELL should be able to help Happy

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Fixed! It was the power supply...

In reply to: Computer won't power up ---- no green light, no fan activity

Got a new one for $60, works like a charm.

Thanks to all.

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psu or mobo

In reply to: Computer won't power up ---- no green light, no fan activity

Check the back of the computer... you'll see a green LED light. It's probably not lit up. There should be a small reset button next to it. Both of these items are right beneath the power cord connection. If you push the reset button and hold it down you'll see one of two things... if the light comes on, the fan will spin and you'll feel air on your hand telling you that the power supply is working and your mobo is toast or it won't come on and your power supply is bad. If you can't fix it this way, the earlier post about unhooking your power connections from the power supply is your best bet. It's simple... make sure you hold onto the computer frame while your inside the machine at ALL TIMES. You generate more electricity statically than the machine runs on. Easy to fry stuff if you're not grounded. Get yourself some colored tape and color code all the connections before you pull them apart. If none of these work, the headache of trying to fix it is more mentally expensive than just buying a new machine. Happy Be safe, hope this helped.

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(NT) This 2006 discussion is now closed.

In reply to: psu or mobo

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