Question about E-Machines (308714) Motherboard

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Intially, the computer would just turn off anywhere from 30 secs to 5 minutes. Changed the power supply and now the monitor gets no signal

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Please make sure that you've connected the power cord to the board. please also check it the processor heatsink is locked flat properly.

Posted on Sep 06, 2010

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The power supply you installed does not have enough power to run your video card

Posted on Sep 06, 2010

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1 Answer

Computer turns on, but screen says no signal


Computers send out a video signal.

If the monitor isn't receiving a video signal, you get No Signal on the monitor.

First thing to check is the monitor cable. Cable is used on another working computer to verify, or known working computer's monitor cable, is used in place of it.

I believe we can skip that.
Why?

eMachines are budget computers. Designed to save the consumer money, and give the consumer a decent computer.
Problem is low cost of computer, is due to certain hardware components inside the computer, are of low quality.

The Power Supply being one.
Dirty computer inside, also leads to early Power Supply demise.

You can;
1) Test the Power Supply with a multimeter. If you do not have access to one, economical models sell for around $5 to $12.
You will be testing three main voltages;
3.3 Volts, 5 Volts, and 12 Volts. All are DC Voltage.
In comparison two D cell flashlight batteries store 3 Volts DC.

[ Power Supply's are converters. They convert the dangerous high AC voltage (100 to 240. Depends on what country you're in), to the above low DC Voltages ]

Or do you have a KNOWN to be good, Compatible power supply; you can borrow from a working computer?

(I posted this one time, and the person posted back they had borrowed a Power Supply, from their aunt. Computer sat in the garage unused. When finished they returned the Power Supply. Put it back in the computer. Then went, and bought a new one )

Before performing the above, would like you to try this;

Unplug the computer from power. Press, and hold the Power On button in, for 10 seconds. Let go.
Do this same procedure two more times.
Continue also, until the Power On light doesn't briefly flash anymore.

Now plug the computer back into power. WAIT 1 minute.
Turn the computer on. The processor fan, computer case fan/s, and Power Supply fan; should race, (High idle speed), for a few seconds; then slow down. Let's see.

For additional questions please post in a Comment.
Regards,
joecoolvette

Also post the model number of the eMachines. Some examples, T1090, W3653, etc.

Nov 19, 2012 | E-Machines eMachines Desktop PC

1 Answer

My computer has been working fine. I powered it on today and I had no signal on my Sceptre monitor and the tower was runnning. I unpluged all cables on the monitor for 30 sec. Plugged them back and...


shut your computer down for 1 minutes with the power unplugged, and try it again.

depending on if your savvy with computers or not depends on how indepth you want to be.
You need to determine if your video card has gone bad or not. try to remove everything attached to your motherboard, memory, hard drives, any cables, and see if your screen turns on. Take out any network cards, video cards, modems etc, that is inside your comptuer. So you need to have your motherboard, cpu and fan+ power supply connected, and try to turn it on. If the screen comes up,l something you removed is bad. If it does not, and your computer is running, bad video card.

Most computers today come with an integrated video card, meaning everything is 1 piece. You might be able to bypass your motherboards video card port, by installing a separate card. You can get these at any computer store.

Hope this helps!

May 02, 2011 | Computers & Internet

2 Answers

My acer al1511 monitor started shutting down after 2 or 3 minutes, the green power led turns orange(like no signal). if i turn the monitor power button off and back on the monitor works for 30 sec to 1...


Here are the service manual (not usre which model you have, downloads are limit to two per day):
http://elektrotanya.com/?q=showresult&megnev=acer&megnev2=al1511&kategoria=&kat2=all
You need to do some voltage checking make sure you do have 5 and 12v. The caps the secondary DC side should all be replaced at the same time, it may look OK but they can have high ESR, and they also should be low ESR type such as FM or FC series by PANASONIC. You can send me pictures if you want more help, budmrtn@aol.com
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Apr 23, 2010 | Acer AL1511 15" LCD Monitor

1 Answer

After 5 mins the screen will go blank. turn monitor off and then on will work for 30 -60 sec and go blank


your back lights are going out. you need it repaired. it may be the lamps. invertors or power supply. you need to look at the power supply for damaged electronics, leaking crown capacitors. blown fuses and resistors. you need to replace them to make it work

Jan 03, 2010 | Computers & Internet

1 Answer

No Signal To my Monitor and no beep.


First refix the RAM and Pci graphic card.
Pull cmos cell from mother bord for 15 minutes then put again into its position then all settings are defaults.
Then if still face problem then check with other RAM.

Aug 13, 2009 | Computers & Internet

2 Answers

When turned on, it immediately turns off after about 5 secs. can u help me find solution regarding this? thanks


Sounds like it could be that the lcd is going bad in your monitor. Try hooking up a known working monitor to your computer and if you get the video to stay on then you know the original monitor is bad. If you cant' get the video to stay on even with the known working monitor then you know that the video card inside of the computer is bad.

Aug 03, 2009 | AOC LM742 17" LCD Monitor

1 Answer

Monitor warning pc enter power saving mode


Are you using usb keyboard and muse. if so your usb ports are dead

Jun 16, 2009 | HP Pavilion a450n PC Desktop

1 Answer

61MP1 turns off after 5-10 minutes


Ryan

I have a 61MP1 that wont turn on. I get the green flashing light to signal power but nothing happens with the plasma. You seem to know a fair bit. A guy in UK said he'd supply a new power board for $500 but wants my old one in return. Sounds like it might be something I can fix here. Any suggestions. Barry

Aug 02, 2008 | NEC PlasmaSync 61MP1 61 in. Television

1 Answer

My monitor not turn on when the computar turn on to . and when you try to turn on the monitor its like flash for 1 sec and tune off to black . to turn the monitor on i need to prees the botten 30 time on...


First you sec your monitor power cable is not loos or power in properly if ok then you sec your monitor VGA cable is properly conect to your pc if ok then you disconnect your VGA cable in your pc then you power on your monitor and sec that youre monetor screen. show a masege or not masage like tiis : CHEEK SIGNAL CABLE or NO SIGNAL : if show this signal then you men your display card is not responding or monitor shows nothing then you meen your monitor is faulty then contact any monitor techenican and solve your monitor problem.

Jul 19, 2008 | Computers & Internet

1 Answer

Monitor light blinks


have you tested the power supply connection feeds? test each connector I think you will find your power supply has failed on either the 5 volt or the 12 volt side more than likely 5 volts are down' the agp adapter needs 5 volts to run. since you have changed out every thing else I would replace that or test your dads power supply in your computer, that should do the trick

Apr 28, 2008 | Samsung Syncmaster 730B 17" Flat Panel LCD...

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