Question about E-Machines (308714) Motherboard

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Motherboard pwr's up cpu fan runs no display - E-Machines (308714) Motherboard

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Posible problems
Defective Memory. Make sure the memory is properly seated. Clean the gold plate connector of the memory card by using an eraser. Then try to power up again.

Defective Motherboard. Check if your board has busted capacitors.


Posted on Jul 10, 2010

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No Display on boot up


When a motherboard does not beep that isnt good news and its either the Motherboard or CPU. Have you fot the FSB settings correct on the board? Is your power Supply Good? Does your graphics card need power and is it plugged in? Unfortunately the only way to findout exactly is at fault is through a process of elimination. Can you try a different power supply first? Also try removing the CPU and re-seating it. If not, then you need to try and get hold of another motherboard and see if everything works in that. If not then it could be the CPU. Diagnosing CPU or MOTHERBOARD is always tricky without spares. Good luck

Aug 30, 2007 | ASUS P5NSLI (0610839134670) Motherboard

1 Answer

No power from gigabyte motherboard


Nope

Just basic diagnostic tools

First thing to check IS the Power Supply.
Then the diagnosis goes on.

So far all you have told me is an assumption. You ASSUME the Power Supply is OK.

Don't.

1) If ALL of the LED's were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor can draw from 51 to 125 Watts of power.
Just depends on what Processor it is,

By having JUST the CPU on the motherboard, and the fan on the Power Supply doesn't work; you have just PROVED that.

Do you have a multimeter?
An economical one can be purchased for as little as $5 to $12.
Available in a multitude of stores.

There are 3 main voltages to check. Check while PSU is plugged into mobo. (Power Supply Unit; MOtherBOard)

A) 3.3 Volts
B) 5 Volts
C) 12 Volts
All are DC Voltage. (Dotted line over a solid line for Multimeter)

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

The Orange wires are 3.3 Volts
The Red wires are 5 Volts
The Yellow wires are 12 Volts. All are DC Voltage. (DCV)

The 24-pin ATX main power cable is left plugged into the mobo.
The BACK of the power cable's connector; is where the wires go in.

Power Supply unplugged from power; a straightened out paperclip is inserted down into the socket hole with an Orange wire in it.
The paperclip slides down alongside the insulation of the Orange wire, and touches a metal female terminal.

Every wire going into the 24-pin ATX main power cable's connector, ends in a Molex female metal terminal,

http://www.molex.com/molex/products/datasheet.jsp?part=active/0002081202_CRIMP_TERMINALS.xml&channel=Products&Lang=en-US

The brass tip openings can be seen, in the Playtool link's middle photo. (Tip openings; Front. Paperclip touches Back)
MUST touch that metal terminal.

Another paperclip is slid down into ANY socket hole, with a Black wires in it.
ALL Black wires are Ground wires.

Making sure the paperclip jumper wires, are of the correct length by cutting; there is no way they will accidentally touch each other.

Positive (Red) probe lead of multimeter to Orange wire paperclip;
Negative (Black) probe lead of multimeter to Black wire paperclip.
You should read 3.3 Volts (DC)

Do the same for the Red - 5 Volt wire. Red wire and Black wire.
12 Volt - Yellow wire and Black wire.

Post back in a Comment.
Regards,
joecoolvette

On another note;
Did you just recently mount the mobo to the computer case?
Did you use metal Standoff's, or plastic Spacers?
(Standoff - Hex shaped brass piece, usually 1/2 inch tall; and with a threaded hole on one end, and a threaded shaft on the other)

The Support Plate can be a separate metal plate; or is an integral part of the computer case.

IF, there is a Standoff on the Support Plate, that is NOT lined up to a motherboard mounting hole, it can touch exposed solder joints on the bottom of the motherboard.

This will short circuit the motherboard. MOST of the time when the 'offending' Standoff is removed; everything is OK.

Dec 25, 2012 | Computers & Internet

1 Answer

With asus m4a785-m motherboard and amd phenom x4 9600b quad core cpu why does monitor displays a cpu fan error when fan is running full speed.


Hmm, I've never seen a computer give a CPU fan error. Maybe if the fan is really dusty it's clogging it up, try getting some canned air and spraying it out.

Dec 17, 2010 | ASUS M4A785M Motherboard

1 Answer

Dfi nF4 DAGF red in light flashingon MOBO.. Fans


the cpu power probably isn't plugged into the mobo. It's the 4 pin spuare pwr connector

Jan 04, 2010 | DFI nF4-DAGF Motherboard

3 Answers

No monitor display monitor good, pwr supply good


This is an emachine motherboard ? contact me on my emachine support pages on http://www.motherboardsrus.net and click on the emachine support page link. Chris

Jun 06, 2009 | Intel D845GVSR Motherboard

1 Answer

Led pwr+hd isn on, cpu fan is runing, but no


if your monitor is working properlly,then you should check the following things:-Remove ram and start the computer. If it gives you any beep then your motherboard is all right.And if not,then it's time to buy a new motherboard.

Mar 17, 2009 | Gigabyte GA-8I848P-G Motherboard

1 Answer

Won't turn on most times


CPU overheating ,goes out on thermo overload. Comes back on after cooling. Check and reseat CPU with new paste. Clean CPU fan and heat sink. Insure enough volume of air through case.  

Jan 19, 2009 | Intel Motherboard

1 Answer

Motherboard problem


If your cpu fan is faster,it may be due to a higher frequency setting.
The frequency that it runs best at is 60 hz, but it can be running at 70 hz or higher.

Jun 14, 2008 | ASUS P4P800-X Pentium Motherboard

2 Answers

HELP! Albatron K8SLi motherboard not starting!


Hi, you have tried all the standard test, could you give some history about this board? Maybe one of us can pick something up from that. Awaiting a furthe post, mistyman

Oct 05, 2007 | Albatron K8SLI Motherboard

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