Atx 300w p4

How PC Fans Work - PCB Heaven

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Mar 29, 2010 - The connector of a 2-wire fan has a red and a black cable. ... The firsttwo wires are the power supply of the fan. ... This fan is designed to be controlled with a PWM signal and .... I have a four-wire (red black yellow blue) 12v fan out of an old .... My case has a number of 2 pin outputs for multiple case fans, ...

Motherboard Power Connectors ' PC Repair and ... - InformIT

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InformITFeb 28, 2003 - Table 3.3 ATX Main Power Supply Connector Pinout (Wire Side View) .... The auxiliary connector has no +12v leads at all, so that is no help. Pulling up to ...Pin. Signal. Color. Yellow. +12V. 3. 1. Gnd. Black. Yellow. +12V. 4. 2.

ATX 24 pin power supply connector pinout diagram ...

pinouts.ru/Power/atx_v2_pinout.shtml

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Jan 28, 2014 - Pinout of ATX (ATX12V) 24 pin power supply connector and layout of ... and later (ATX12V 2) is common ATX standard, 24 pin connector. ... Power Ok is a status signal generated by the power supply to notify ... 10, 12V, Yellow, +12 VDC ... 18 AWG is recommended for all wires except pin 11, which should ...

ATX power supply connector pinout diagram @ pino

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

Hmmm, P4 is usually a designation, for a 4-pin ATX +12 Volt power cable,

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

I see though that they have P2 as the 4-pin ATX +12 Volt power cable, and P4 as a SMALL 4-pin Peripheral power cable,

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

This type of power cable is used on a Floppy Drive, or a Card Reader.
Not a Harddrive, or Optical Drive. (CD/DVD drive)

The Standard 4-pin Peripheral power cable, is used on an IDE (PATA) harddrive, or optical drive,

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

Rounder corners on the Top of the plug connector.
Only plugs in, in one direction.

Owner's Manual > Page 109 -
Power Supply DC Connector Pin Assignments

P1 = 24-pin ATX main power cable,

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

P2 shown above - 4-pin ATX +12 Volt power cable

P3, P5, and P6 are SATA power cables,

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

If you have a SATA optical drive (CD/DVD drive), the above is the power cable used.

Uses a SATA data cable,

http://en.wikipedia.org/wiki/File:SATA_ports.jpg

SATA data cable connector on motherboard, is shown below the SATA data cable.

NOTE*
Color does NOT matter

For additional questions please post in a Comment.

Regards,
joecoolvette

It wont work...Sorry my friend.

your power supply needs to be replaced its already have a problem.

eMachines uses low quality hardware components inside their computers. This is the way they can sell them at budget prices.

One main hardware component is the low quality power supply they use.
A generic power supply made by Bestec. (A generic power supply manufacturer)

(PSU. Power Supply Unit. The type of PSU used is a SMPS.
Switched-Mode Power Supply,

http://en.wikipedia.org/wiki/Switched-mode_power_supply )

Low quality;
A) Electrolytic Capacitors (Radial Aluminum Electrolytic Capacitor)
B) Rectifier Bridge
C) MOSFET/s
D) Wiring is too small in gauge
to name a few of the components.

However IMHO it is also best to check out the Power On switch.
There is a simple test to see whether the problem is a faulty Power On switch, or a faulty Power Supply.

The test involves bypassing the Power On switch. The Power On switch is not involved in this test.
A jumper wire is used on the Soft Power On wire, [ PS-ON ], and a Ground wire in the ATX main power cable connector.

If you bypass, and the Power Supply comes on you have a bad Power On switch.
If the Power Supply does Not come on you have a bad Power Supply.
If you would like to know more in detail on how to perform this simple test, simply post so in a Comment.

The Power Supply used is just a common ATX version.
ATX refers to the Form Factor of the power supply.
Regular size ATX form factor is approximately 6 inches Wide, 5-1/2 inches Long, and 3-1/2 inches Tall. (Height)

There are also differences in the pinout of the ATX main power cable.
Yours may have 20-pins, or 24-pins.
Power Supply's sold now take this into consideration.
Their ATX main power cable can be used as a 20-pin, or a 24-pin version.

[ General example of a 20-pin ATX main power cable, and it's connector,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

Example of a 24-pin ATX main power cable, and it's connector,

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

Your motherboard may also require an additional power cable, commonly referred to as a P4 power cable, or P4 ATX 12V power cable, or just ATX 12V.
The actual name is 4-pin ATX +12 Volt power cable,

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

If you would like help in finding an inexpensive reliable Power Supply, please post in a Comment.
I will need to know what Model Number of eMachine you have. It's on the back next to the Windows product key, or up on the side of the computer tower.

If you need anything explained that I have stated here, please let me know in a Comment.
Regards,
joecoolvette

Acquire a replacement power cable simialr to the one missplaced.

Yes you can without any problems.

It was the 1996 to 2000 time frame, that Dell was proprietary with the 20-pin ATX main power cable, and the matching connector on the mobo. (MOtherBOard).

Standard 20-pin ATX main power cable, and it's corresponding connector should work, then add the 4 power wires that are missing, in a separate connector.

To expound:

View this standard 20-pin ATX main power cable, and it's respective connector,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

The power wires should be in the same place as your P3 units.

(Match the color codes.
Use the lock tab on the 20-pin ATX main power cable connector, to base where the pins are.

Pins 1 though 20. Match the color code of the wires to the pins, and use the chart to compare)

Here is a view of a standard 24-pin ATX main power cable, and it's respective connector, so you can see what power wires are missing, from the 20-pin ATX main power cable connector, that are present in the 24-pin ATX main power cable connector.

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

Note the missing power wires, and what pins they line up with.

The P4, or also stated as the 4-pin ATX +12 Volt power cable, uses two Yellow (12 Volt) wires, and two Black wires, (Ground)

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

Since you don't have the male connector, be sure to orient in your mind where the Yellow (12 Volt) wires go, and the Black (Ground) wires go, by looking at the lock tab on the side of the female connector, on the motherboard, and comparing it to the photo.

Transfer this info, to the P4 connector you are going to make.

Where to get the power wires you need? Connect to any extra 4-pin Peripheral power cable wires, or splice off of ones that are in use, is one suggestion.

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

The links given are near the middle of the page. Scroll back to the top. Left-click on any power cable connector, that you wish more information on.

More info,

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

Scroll to the bottom of the page, and look at the chart under the heading -

24-pin ATX12V 2.x power supply connector
(20-pin omits the last four: 11, 12, 23, and 24)

One more link,

http://www.smpspowersupply.com/connectors-pinouts.html

Lastly Dell Support > Optiplex GX260 > Service Manual,

http://support.dell.com/support/edocs/systems/opgx260/en/sm/index.htm

Just in case it's of any use.

Have questions regarding what I have stated, or need more clarification of anything I have stated, simply post in a Comment.

then do your work instead of playing game.
Solution No.1: Turn your computer on to play games.
Solution No.2: Install your games to play them.
.............
.............

you should better describe your problem why, when or which error message comes when you try to play them.