Question about ASUS M2N-E SLI (M2N-E SLI GREEN) Motherboard

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Same problem with mbo starts up and dies

I don't see the 4 pin  connector available from my power supply????  am i suppose to have one if i have the 24 pin connector?

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If there is a spot on the MB, yes

Posted on Nov 09, 2007


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What power supply connector will work with the ms8137c motherboard (aka, 20 + 4 pin)

Ahem, you just posted 20 + 4-pin.

That means it can be a 20-pin ATX main power cable, OR a 24-pin ATX main power cable.

Most power supply's now have a 20 + 4-pin power cable.

Use the 20-pin connector, or add the additional 4-pin connector, to make a 24-pin ATX main power cable.


In direct answer to your question, however, it uses a 20-pin ATX main power cable.

For additional questions post in a Comment.

Jun 17, 2012 | Matsonic MS8137C Motherboard

1 Answer

Need a new power supply for a soyo mother board Crown model fp-

All you need to know is if your motherboard has a 24-pin or 20-pin power connector. You can just count the pins if you don't know. There connector is located on the motherboard. It looks like this: moondogwst75_3.jpg

So if it's a 24-pin, order a 24-pin power supply. If it's 20-pin, order 20-pin. Hope this helps!

Aug 28, 2011 | Computers & Internet

2 Answers

I am replacing a motherboard with a G31-M7 TE and find that my existing power supply has a 20 pin plug consistant with the old motherboard but the new one has a 24 pin socket. Why is this and do I need to...

New motherboards have a 24-pin power connector. Here is a diagram of both plugs:


You can see that the two are almost identical. The extra 4 pins on the 24-pin connector provide extra connection points for a few voltages. Newer boards and processors need more current, and the extra pins were added to prevent overloading.

Adapter cables are available to go from your 20-pin power supply plug to the 24-pin motherboard connector. Here's one from TigerDirect, and other vendors have them as well. If you're not making other changes than replacing the motherboard, you shouldn't need more than this adapter.

If you are upgrading your processor along with the motherboard, you should probably replace the power supply too. Older power supplies are often in the 300-watt range, and this is too low for reliable operation with new processors, motherboards and video cards. A new 500 or 600-watt supply is not expensive, and would give you the 24-pin power connection the motherboard needs.

Hope this has helped. Thanks for using Fixya!

Nov 20, 2010 | Biostar G31-M7 TE Motherboard

2 Answers

I've got a new Gigabyte Ga-M68Mt-D3 mobo paired with a cooler master 460 watt power supple. Cpu is Amd phenom II 3.2 ghz with 4 gig of DDR3 ram. I powered up the supply attached to my ATX power supply...

Most motherboards now have a 24-pin power supply connector. If you haven't already found a diagram showing the pinouts of the 20- and 24-pin power plugs, here's one borrowed from a handy site:


The two plugs are essentially the same, but the 24-pin version duplicates some voltages on the extra pins. The extra pins in the larger connector were meant to provide extra current paths for voltages that see heavy loads from newer processors and motherboard circuitry. Depending on how a motherboard is designed, it might work with a 20-pin plug connected (leaving pins 11, 12, 23 and 24 empty). But typically if the board has a 24-pin connector it needs the 24-pin power supply plug.

Most power supplies have a 20-pin plug with a separate 4-pin section that fastens to it for connection to a 24-pin mobo connector. It typically has one side designed to slide onto the end of the 20-pin plug, essentially turning it into the 24-pin version. This added plug does not have a retaining clamp on its side, so you can tell it from the the 4-pin CPU power plug. The wire colors are also different. For reference, here is the processor power plug, from the same website:

New motherboard specs call for the separate processor power connector for the same reason the extra pins were added to the power supply connector: to handle the high currents needed by increasingly faster CPUs.

When the motherboard has these connectors, you need to use them all to get everything working. Hope this helps. Thanks to for the diagrams, and thank you for using Fixya.


Nov 19, 2010 | Computers & Internet

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My evolution 3000 been occasionally powering down for no apparent reason for a couple of weeks. now completely died. no power at all. won't switch on or show any life.

Power Supply's have a Form Factor. (Actually only motherboards do, but most Power Supply's follow the motherboard Form Factor)

The ATX designation determines it's size, shape, and factors concerning the various power cables coming out of it, (Spaghetti), plus other concerns.

An ATX power supply shape is generally close to 6 inches long, (15.24 Centimeters), 6 inches wide, and 3-1/2 inches tall.
(8.89 Centimeters)

It is the common size and shape used for 90 percent of the personal computers made, out there.

From what I have been reading about Evesham, they used typical power supply cables used for most ATX power supply's.

Basic specifications on the Evesham Evolution 3000 desktop computer,

Power Cables:

1) Don't know if the Power Supply will have a 20-pin ATX main power cable, or a 24-pin ATX main power cable.

In reality the point is moot, because new power supply's have a main power cable which will be a 20-pin connector, or a become a 24-pin connector.

To expound,

(If you scroll up the page, you can see a 24-pin ATX main power cable, and it's respective connector.

Scrolling further up produces a 20-pin ATX main power cable, and it's respective connector.

Color of the connector does not matter)

2) The Evesham Evolution 3000 specifications, state that an Intel Pentium 4 processor is used.

This means there will be a 4-pin ATX +12 Volt power cable, which plugs into the motherboard.


(Again, color of the connector does not matter)

3) There will be a few 4-pin Peripheral power cables,

One connects to the Harddrive, one connects to the Optical drive, (Or optical drives. Spec's state just one CD/DVD drive is used)

4) There is a Floppy Disk drive power cable,

(Again, I'm going off of the specifications stated. Your Evesham may not have a Floppy drive)

To be continued in a Comment.

Jun 15, 2010 | Evesham Evolution Blue Beast...

1 Answer

Need to know what parts compatable to ATX-1523D for an emachines T-1090

It's a Small Form Factor power supply.
4.9 inches Wide, 2.5 inches Tall, and 3.9 inches Long.

Put's out a maximum of 150 watts, (Supposedly)
Has the following power cables;

A) (1) 20-pin ATX main power cable:

The main power cable. Main power cable designs have moved up to the 24-pin design, with some main power cable connectors having a 20-pin connector, and a separate 4-pin connector

B) (1) 4-pin ATX +12 Volt power cable:

This power cable is power for Intel Pentium 4 processors,and on up.
I have a eMachines T-1090 in my shop. (Still works great) It has a Pentium III 933MHz processor. Didn't know Pentium 4's were offered.

C) (4) 4-pin Peripheral power cables.

(The connector on the end of the power cable, is referred to as a standard 4-pin Molex connector. This is a misnomer. Molex was/is, a company that made this style of connector first. The name Molex was on the connector. The name stuck with people. It's just like referring to an open end adjustable wrench, as a Crescent Wrench)

D) (1) Floppy Drive power cable

Except for the size, and shape of this power supply, just about any low-end ATX power supply with a 4-pin +12 Volt power cable, would work.

More in additional comment.

Mar 28, 2010 | E-Machines T1090 PC Desktop

2 Answers


Hmmm.... mainly you have:
-20 or 24-pins connector, that is unique and goes directly to motherboard (powers motherboard and its components)
-4 or 8-pins connector that powers CPU
-the rest would be connectors for ROM (CD/DVD/BlueRay) and HDD devices (there are: molex and sata power conectors)

If you totaly unshure, there is manual:
Illustrated How to Replace an ATX Power Supply

Sep 05, 2009 | Computers & Internet

1 Answer

Hercules switching power supply 500 wat max

yes 20 pin connecter power supply is ATX(advance technology extended )power supply and old which was low watt and 24 pin is EATX (enhaunced advance technology extended) power supply is new and high watt so 4 pin connecter can be detached from 24 pin connecter and can be fitted in 20 pin connecter

Oct 18, 2008 | Guillemot Hercules Dual Fan ATX 450W Max...

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