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Emachine laptop overheating, fan comng on every 5 secs because it is. And also DC light on, but power light not coming on,BIOS battery seems to have fallen below 1 volt, it should be 3 volts....any ideas.

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May be the paste the removes the heat from the processor has lost it property of transferring the heat from processor on to the sink..
you shud be replacing the paste for reducing the temp.

thankyou

Posted on Nov 06, 2008

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Posted on Jan 02, 2017

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3 Answers

I have a desktop PC that when I turn it on it will power up and then after 6 seconds turn back off.


The first solution is right on the money, It's the video card, or many of us today forget to plug the damm thing in and the computer doesn't read and we think that there is a serious problem. If none of this helps then try troubleshooting through this PC repair guide. Hope this helps.

Dec 29, 2011 | E-Machines eMachines Desktop PC

1 Answer

Emachine total black , this are on fan


LED lights are on? Fans spin? I suggest you have a bad Power Supply.

1) eMachines are noted to have low quality Power Supply's.
Saves eMachines money so they can sell budget computers.

2) A bad Power Supply is one of the leading causes of computer failure. I have, (Had actually), a shop half full of computers with this 'ailment'.

Some caused by the owners never cleaned out the inside of their computer, nor the inside of the Power Supply, with a can of compressed air for computers on a regular basis as needed.

3 to 5 years without cleaning the inside of their computer.
Mice could have made nests inside easily, with the 'Gunk' that was there. A bald eagle could have too. Rant off.

Others, caused by the computer manufacturer used a low quality Power Supply.
Low quality components used inside.
One of the major components that fails, is caused by a particular Electrolytic Capacitor that is used.

http://en.wikipedia.org/wiki/Capacitor_plague

3) Power Supply's used in PC's are a type of SMPS.
(Personal Computer. Statement holds true no matter what type of personal computer it is)

[ SMPS = Switched-Mode Power Supply
PSU = Power Supply Unit
All terms relate to a Power Supply used in a PC ]

A bad Power Supply will have a weak voltage power rail.
There are three major power rails used in the ATX form factor Power Supply, for an eMachines T6420 desktop computer.

A) The 3.3 Volt power rail (DC)
B) The 5 Volt power rail (DC)
C) The 12 Volt power rail (DC)

(Two D cell flashlight batteries produce 3 Volts DC)

A Power Supply with a weak voltage power rail, may have enough power to light LED lights, and spin fans, (or spin a few times, ans stop), but won't have enough power to turn the Processor on.

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.

eMachines T6420?
Uses an AMD Athlon 64 3400+, processor.
(Socket 939)

[The motherboard used is an MSI ms-7207
Also known as K8NGM2-L ]

http://www.emachines.com/support/product_support.html?cat=Desktops&subcat=T%20Series&model=T6420

This Processor can use Up To 89 Watts.

http://en.wikipedia.org/wiki/List_of_amd_athlon_64_processors#.22Newcastle.22_.28CG.2C_130_nm.29

No Processor running, No computer.
No computer = No Video Signal

Suggest using a KNOWN to be Good, Compatible power supply, for a test unit, if available.

Should be the ATX form factor.

Approximately 6 inches Long, (15.24cm), 6 inches Wide, (15.24cm), and 3-1/2 inches Tall. (8.89cm)

250 Watts.
Correct amount of power cables, and the correct type.

Sep 20, 2010 | E-Machines T6420 PC Desktop

2 Answers

Emachines ET1810 desktop computer randomly powers down for seemingly no reason. Doesn't crash or freeze, just turns off, as if the plug was pulled. Started about 5-6 months after buying.


It could be overheating, and automatically shutting itself down, to avoid any damage.

Did you get the standard 12 month warranty when you purchased the computer? Did you purchase "extended" warranty? If so, contact Emachines, and get them to trouble-shoot and fix it.

Jun 11, 2010 | eMachines ET1810-01 PC Desktop

1 Answer

Emachine w3507 blue light only comes on fan runs nonstop, no signal or monitor, pressing the f8 did nothing


If you get nothing but a blue light and no video at all it sounds like you have a bad power supply. They are easy enough to check and replace but not for a first timer. If you know someone who knows more; get a volt meter and put it on the DC scale. Unplug a power plug to a drive or find one that is not used. Measure the Yellow to black and then the red to black wires. You should get 12 & 5 volts respectively.

Apr 18, 2010 | eMachines W3507 PC Desktop

1 Answer

K8mc51g motherboard wont turn on i shut it down and now it wont power on i tried reset jumpers and removing the battery for 30 sec and taking away all power for 24 hours


If after pressing power button the fan rotates ...then the BIOS might have been corrupt ...and if the fan dont rotate then the SMPS might have fault

Oct 21, 2009 | E-Machines eMachines Desktop PC

2 Answers

Laptop fails to boot. no post beeps no video Power light comes on Hard Drive light comes on briefly and the Drive can be heard spinning up then stopping. Laptop was originally purchased in North Korea


Clean first its ram module edge connector with soft eraser. But disengaged first its battery, power source and completely shutdown.

Then put it back and try to boot. If this doesn't help let me know . Leave a comment.

Apr 23, 2009 | Computers & Internet

1 Answer

Desk top will not come on


at first check the all power cable. change the power supply, check the ram, check agp or pci-express. check hdd, remove the bios battery, wait for 5 minutes, then add battery, then start the computer.


Jan 25, 2009 | E-Machines eMachines Desktop PC

1 Answer

Power light blinking yellow after sitting a while


Unplug computer, disconnect all usb/monitor/internet, open it, hold power button until green led on the inside on the motherboard turns off, pop out the BIOS battery (looks like a big watch battery and use a small flathead screwdriver to depress the spring lock on one side), plug in computer, hold power button for about 20 seconds (must reset BIOS or something), let up on power button, wait 10 seconds and push power button. The computer should turn on. Wait for it until activity seems stable (1 min. or so). Push powerbutton to shut off.

If this has worked you have proven that it's not the power supply (it turned on).

Go buy a new battery (CR2032 3 volt). Unplug computer, open it, hold power button until green led on the inside on the motherboard turns off, pop in new battery, plug in (you should notice the power button blinking amber again), hold power button until it stops blinking (about 20 sec....again must reset BIOS or something), wait 10 sec., push power button. the computer should turn on. Wait for it until activity seems stabe (1 min. or so). Push powerbutton to shut off.

Now, close case, plug in all usb/monitor/internet/etc. Power up computer. You'll get an internal floppy drive error. Push F2 (maybe F1) to get into the BIOS settings and go to "drives" and turn off the internal floppy. Save and exit. The computer should boot properly now.

This seems to be a big problem with the e510, my theory is that this one small battery is the root of most of these failures (as these computers usually fail after 1-2 years), not the power supply or the motherboard (heck, when you replace the motherboard it comes with a new one of these batteries...a several hundred dollar piece of hardware, with a $5 battery that will actually fix it).

Oct 11, 2008 | Dell XPS 200 PC Desktop

4 Answers

EMACHINE T6542


the motherboard looks to be sick.

you can try to take the cios battery out, wait 15 sec and then put it back again.

CS

May 15, 2008 | E-Machines eMachines Desktop PC

2 Answers

Reseting the BIOS on eMachines 270


brand and type of ur mobo, in moust of the time a restore to factory defaults is the solution, or go to hardware monitor and disable the fan speed  sensor, or check on the mobo that the cpu fan conector is in the right place, if this will not fix le't me to know

Oct 18, 2007 | E-Machines eMachines Desktop PC

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