Question about ASUS P4B533 Motherboard

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I change the power supply but i have a little problem. The new one on the ATX power connector have only 19 pin then 20 old one plus extra 4 pin for something else. The new power supply in Rosewill RD400-2SB

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The extra 4 pins on the power supply's atx connector is for new motherboards that require 24pin power supplies. If your motherboard has a 20pin port, then only connect the 20pin portion of your power supply connector.

If your power supply has a 24pin fixed connector that can't be split into a 20+4pin configuration, and your motherboard doesn't have space to let the extra 4pins on the side, then you might want to consider returning the power supply and change it for one that can be used as a 20 or 24pin. Otherwise you will need to cut the extra 4pins apart.

Posted on Jan 05, 2009

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Posted on Jan 02, 2017

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Intel fw82801db


on your board theres is a spot where the fan from the cpu goes it saids cpu fan on the board near by cpu socket

Aug 06, 2013 | Asrock Computers & Internet

1 Answer

DX4820 power supply


To my knowledge, the Power Supply used is just the common ATX form factor design.

Approximately 6 Inches Wide, 5-1/2 Inches Long, and 3-1/2 Inches Tall.

Needs these power cables;

A) 24-pin ATX main power cable
Newer power supply's come with a 20 + 4-pin ATX main power cable.

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20plus4

That is so the power supply can be used on a motherboard, that needs a 20-pin, OR a 24-pin ATX main power cable.

B) 4-pin ATX +12 Volt power cable.
Often referred to as an ATX12V power cable.

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

[Note color of power cable connectors does NOT matter ]

Note the Lock on the side of the power cable's connector, and matching Tab on the motherboard connector.
The 20 + 4-pin ATX main power cable, and matching motherboard connector; has this type of Lock/Tab also.


C) Needs at least 2 SATA power cables.
The Harddrive is a SATA unit, and I believe the optical drive (CD/DVD drive) is too.

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

Often has a Lock on the connector. Press to release when installing, or removing.

D) Should have at least two 4-pin (Standard) Peripheral power cables.
Misnomered as 'Molex',

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

E) Needs one 4-pin (Small) Peripheral power cable, for the Card Reader.

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

Also needs 300 Watts.
A Power Supply like this one would work,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=899123&CatId=1079

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

Apr 02, 2013 | Gateway mb.u1909.002 - Dx4820-05h System...

1 Answer

Gateway dx4822-01 power supply


Gateway DX4822 Desktop PC,

http://support.gateway.com/us/en/product/default.aspx?tab=1&modelId=2291

Just a regular Ol' ATX power supply. Rated at a maximum wattage rating of 300 to 525 Watts. Two different power supply options offered.

Power Supply case size is;
6 Inches Wide, by 5-1/2 Inches Long, by 3-1/4 Inches Tall. (152.4mm Wide, by 139.7mm Long, by 82.55mm Tall )

Has the following power cables;

A) 1 -> 24-pin ATX main power cable,

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

[ NOTE* Color of connector on power cable, OR motherboard, does NOT matter.

Proper connector, proper power cable, DOES matter; connector color does not matter ]

B) 1 -> 4-pin ATX +12 Volt power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

{ Power to the motherboard, and all components connected to it }

C) 2 or more -> SATA power cables,

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

{ Power to a SATA harddrive, and/or power to SATA optical drive/s.
(CD/DVD drive) Or power for an upgrade in the future, for a SATA optical drive }

D) 3 or more -> Standard 4-pin Peripheral power cables,

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

{ Power for an IDE (PATA) harddrive, or drives. Also power for IDE (PATA) optical drive/s. Plus power in some instances, for computer case fans }

E) Two or more Small 4-pin Peripheral power cables,

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

{ Listed as a Floppy Drive power cable. Back in the day when the article was written, such was true.
It can still be used for a Floppy Drive, but is more used now as a power cable for a;
1) Card Reader.
2) Computer case fans (IF needed }

It's name is Small 4-pin Peripheral power cable. It is smaller than it's larger cousin, the Standard 4-pin Peripheral power cable.

Also has smaller gauge of wiring. This means it cannot carry the same amperage, as the standard 4-pin Peripheral power cable.

I would recommend this,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=899124&CatId=1483

A) 1 -> 20 + 4-pin ATX main power cable.
Can be used as a 20-pin ATX main power cable, or a 24-pin ATX main power cable, which is what you need.

B) 1 -> 4-pin ATX +12 Volt power cable.

C) 6 -> SATA power cables

D) 4 -> Standard 4-pin Peripheral power cables

E) 1 -> Small 4-pin Peripheral power cables

F) 1 -> 6-pin PCI Express power cable

G) 1 -> 6/8-pin PCI Express power cable.

In the future, (Or now if you have one), you can upgrade to a better graphics card, that needs an additional power cable, IF you wish.
The 6-pin PCI Express power cable.

You also have a 6-pin or 8-pin PCI Express power cable.
(6/8-pin PCI Express power cable)

All the pins can be used together, and make an 8-pin PCI Express power cable, for a very powerful graphics card that requires this cable.

Just added bonuses with today's modern power supply's.

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

Jul 04, 2012 | Gateway DX4822-01 Power Supply 575 Watt...

1 Answer

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.

Example.

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20plus4

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

For additional questions post in a Comment.
Regards,
joecoolvette

Jun 17, 2012 | Matsonic MS8137C Motherboard

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:

pgh_pa_guy_3.jpg

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:

pgh_pa_guy_1.jpg

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:

pgh_pa_guy_2.jpg
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 smspowersupply.com for the diagrams, and thank you for using Fixya.

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Nov 19, 2010 | Computers & Internet

1 Answer

I need to connect a new Antec 380d PSU to a A7v333 And connectors are different any suggestions?


The Antec 380D PS comes with an ATX 24-pin main power connector. If you look closely you'll see the extra 4-pin adapter is for motherboards that use all 24-pins. Your board needs only 20-pins. The extra 4-pin connector can be disconnected from the main cable & is not used.
Looking closely at the A7V333-X's main motherboard ATX power connector (On the board). The power connector has a locking tab on one side of the port. (This locking tab faces the memory).
This insures that you connect the power cable in one direction only. The Main power cable also has a locking tab attached to it and the two tabs lock together. See page 1-3, number 4.

Cheers!
Mike

Dec 29, 2009 | ASUS A7V333-X (A7V333-X/L) Motherboard

2 Answers

System won't turn on but when i pushg down on one side of the power suply connectore the fan starts running but computer stioll won't turn on it used to boot up then opne day stopped


It sounds like you have a faulty connector - I would return the item under warranty. Otherwise, if it is out of warranty, you will have to source a new motherboard.

Nov 23, 2009 | ASUS COMPUTER INTL P5SD2-VM MBD MATX LGA...

1 Answer

ATX Power Supply Question


Most new power supplies have a twenty pin Molex connector and a 4 pin Molex connector. If you look closely at the connectors you will see that they go together a certain way. It can be very hard to tell. Take a close look at the shapes of each terminal. Match them up exactly.

Nov 28, 2008 | Gateway Computers & Internet

1 Answer

Replacing a power supply.


Hi,

You need to connect both 20-pin and 4-pin connector to *********** board. Your 4-pin connector is located between your CPU and a I/O connectors.

If you did it right first time, check if you have anything shorted on your board because your old P/S could go bad for reason.

Good luck!!!

Jun 20, 2008 | EliteGroup K8M800-M2 Motherboard

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