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When the computer on/off button is pressed , the CPU fan and tower exhaust fans start running, the blue light around the power button does not light and the boot up process goes no further. Fans continue to run until the on/off button is depressed for several seconds.

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Plz check your SMPS and Motherboard

Posted on Sep 13, 2010

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Wont power up


My wont turn on too, There is a orange light on the tower, Green on the left, Battery ovel, If I push the restart button, also switch the power supply switch in the back, also unplug from it, Sometimes does it, Do ou know whats causing this to happen, Please let me know Thanks

Jan 26, 2013 | Asrock K10N78M Motherboard

1 Answer

Computer won't come on. light is blinking in back of hard drive.


Try unplugging from wall socket then press on button (this clears out extra electricity in PC). Plug back in then try to turn on again. If PC is older, try blowing out the dust inside tower especially around the CPU fan.

Aug 04, 2012 | Compaq Computers & Internet

1 Answer

Gx270 tower mother board amber LED solid on


If the fan is not spinning this can be the issue ...but it can also be the motherboard itself ..if you have the possibility try to change the fan ..cause if it fails to start the computer will also fail cause the cpu it will shut down the system instantly if it has no cooler working ..(gets to the shut down temperature in one sec or so ) If it seams that it is trying to start ..but , like I said , it shuts down ..just try to change the fan ...but it may be a issue with the power supply or the motherboard as well...

Dec 18, 2011 | Dell OptiPlex GX270 Small Mini-Tower...

2 Answers

When the computer on/off button is pressed , the CPU fan and tower exhaust fans start running, the blue light around the power button does not light and the boot up process goes no further. Fans continue...


A) When you hold a Power On button, (Switch actually), in for a count of 10 seconds, it turns the computer off.

(There is a Power On switch, located behind the plastic Power On button. Usually, the Power On switch snaps into the housing of the plastic Power On button.

Example of a typical ATX Power On switch,

http://www.directron.com/atxswitch.html

The Power On switch turns the Power Supply on.

Old computers had a metal rod, that when the Power On button was depressed, the button pushed against the metal rod, which in turn pressed against a power switch located inside the Power Supply.

The design after that, was a power switch located in the Front Panel. (Plastic front of the computer) A large cable, (Wire) ran from the switch to the Power Supply.

Now there is the Soft Power On feature. (PS_ON)

The Power On switch is a small Momentary Contact Switch. Pressing it closes a circuit. The Soft Power On circuit.

When a power supply is plugged into power, there is a constant 5 Volts (DC) present.
This is the 5 Volt Standby.

Closing the Soft Power On circuit, redirects the 5 Volt Standby power to a circuit within the Power Supply.
This in turn 'excites' the Power Supply, and turns the Power Supply on.

Sorry to be windy, but I wanted you to know how the Soft Power On feature works )

eMachines are a budget computer. As such they save the consumer money.
However in order to do this, the manufacturer will install low quality parts, in some areas of the computer.

One such part is the Power Supply.

1) ALL the LED lights combined use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts

3) A typical Processor can use 51 to 125 Watts.
Depends on what Processor it is.
(Had you stated the Model Number I could have told you)

Enough power to spin fans, but not enough to spin fans, AND turn the Processor on.

Do you have access to another computer that is unused, but has a Known to be good, Compatible power supply?
It could be used for a test unit.

Tell me the Series, and Model Number of your eMachines, and I'll tell you what Wattage it should have, and what power cables, for the Power Supply.

(Some examples of Series, and Model Numbers, T1090, E4264, W2925, and so on. The T, E, and W are a few examples of the Series letter.
The numbers following the Series letter, is the Model Number)

If you wish I can direct you in removing the Power Supply, and installing the test unit. (And/Or a new Power Supply)

Sep 12, 2010 | E-Machines eMachines Desktop PC

1 Answer

Fan works randomly....when it's not working plug


Hi, If the computer is hot near the electrical plug in the back of the computer then the power supply needs to be replaced. This will also cause overheating problems if the fan does not exhaust enough air. You should not run the computer in this condition because the power supply can short out and take other components with it. Also there is a risk that it will burn up. Power supplies are very inexpensive and can be changed by anyone with basic computer repair knowledge. Hank

Jul 26, 2010 | eMachines T5212 PC Desktop

1 Answer

I hit the power button and the light blinks once, the fans will start to spin, and then nothing, no power no boot, just a quick blip of power but no power up..


You need to remove the case top and look for a lot of Dust all over the inside, especially around the CPU making sure the cpu fan is still running. This can get expensive when maintenance procedures are not thought of until late. It's not you it's everyone. With the power cord out, maybe you have a vacuuum attachment to get in there and get rid of a lot of spider webs. Then take a slightly moistened rag and complete the job. I can't guarantee your CPU fan is still alive but when you get all cleaning utensils out of the way, put the power switch on and watch for the CPU fan to spin. If not- any lights? P.S. Fan?

Apr 17, 2010 | Dell Inspiron 531s Desktop Computer

1 Answer

Hi. my CPU (system) does not start. When i press the power button, the light turns on for a second then nothing happens.


Does the power supply fan spin when you switch it on ??

Do you hear a"posting" beep??

Does the CPU fan start to spin??

If no to all of these probably dud mobo.

Dec 21, 2009 | Intel CPU

1 Answer

My emachine T1742 desktop will not turn on. When plugged in the power supply's fan turns on, cpu fan doesnt start, both hdd/power led's flicker and pressing power button doesnt power on/off system.


Disconnect all the devices from the computer(tower) including keyboard, mouse, monitor(everything)..even the power cable

Now keep on holding down the power button on the computer tower for 15-30 seconds..

Now release the power button, plug in the power cable, monitor, keyboard, mouse and turn on the computer...

If it works, great!!!

Otherwise, take it for repair..

Dec 03, 2009 | E-Machines eMachines Desktop PC

1 Answer

Emachine T6216 will not start


Ok, there is Good news, and bad news. FIRST the bad news. You are not getting any power to the CPU. Fans and lights indicate motherboard power, BUT, power supplies ALSO provide power straight to the CPU, and if the CPU is not getting powered properly, it will not function, and the result is what you see.
Now, the GOOD news is, Power supplies are relatively inexpensive (about 30-50 bucks) and MOST pc shops will install the power supply FREE (if you bring your tower to them, and purchase the power supply from them in their store, but call before going). If you want to save about 10 bucks, order the power supply yourself and install it yourself, but if you are not comfortable doing that, have a pro do it.

Aug 31, 2009 | E-Machines eMachines Desktop PC

2 Answers

Fan is running, power button with blue light is off, cpu won't boot up


Your cpu might have died. As the computer is starting tap F8 and choose last known good configuration to see if you can get it started.

Apr 26, 2009 | Gateway 500GR PC Desktop

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