Redundant hot swap psu's to EPS 12V (24-pin) ATX Power Supply

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 ...

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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

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

Better than Amazon.com Andrew,

http://www.directron.com/ad202.html

Converts two 4-pin standard Peripheral power cables, (Molex) to one female 8-pin EPS +12 Volt power cable.

4-pin Peripheral +12 Volt power cable,

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

[ NOTE*
Designated a 4-pin Standard Peripheral power cable, because there is a 4-pin Small peripheral power cable ]

A) 8-pin EPS +12 Volt power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#eps8


B) Note the difference from an 8-pin PCI Express power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress8

{4-pin Small peripheral power cable,

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

Used on the older Floppy Drives, and also used on today's Card Readers in desktop computers }

Hi Andrew.
Just had a look arouund on Amazon, and if you do a search for

EPS 8-Pin Power to ATX 4-Pin Cable

There are a couple that turn up.

Hope this helps.

Hi lantzgema,
I looked up the specs of your d530 and all I could find out is that you have a 150 power supply, calling HP technical support was no help at all.
I did find some pinouts you can look at and determine which one exactly you have. Hope this help out.
http://pcsupport.about.com/od/insidethepc/a/atx-pinout-24-pin-12v-psu.htm
http://pcsupport.about.com/od/insidethepc/a/sata-pinout-15-pin-psu.htm
http://pcsupport.about.com/od/insidethepc/a/molex-pinout-4-pin-psu.htm
http://pcsupport.about.com/od/insidethepc/a/atx-pinout-4-pin-12v-psu.htm
If this is still not what you have there are other pinouts at the same website.

Although ATX power supplies conform to various specification guidelines, there is not, unfortunately, a standard ATX power supply. To find a suitable replacement power supply for your machine, we would recommend that you have the following information to hand when making your purchase:

- You will require a PSU with a 24-pin ATX connector, SATA power connectors, and a 4-pin 12V motherboard connector
- Make a note of the wattage of your existing PSU
- Make a note of the external dimensions of your existing power supply
- Be aware that your PSU has a power connector for speakers. Most PSUs do not have this, so you may need to purchase a separate power supply for your speakers.
So it is a slight variation to a standard ATX power supply. If you are not using the speaker power off the power supply, then any standard ATX power supply will work for you

why wont you buy a new power supply or a plug that converts from a 20 pin to a 24 pin

Wouldn't like to try but the cables are the same and using the connectors in the correct formation you should be able to but risky.

Thanks J

your connector is of two part.it has total of 24 pin, can be divided into 20 and 4 pins.connect  20 pin  in your mother board .switch on ur psu and connect 4 pins to another port.

I have a feeling (although I haven't checked, not that I can find anywhere to do so :{{ ) that it's not just a matter of changing connectors - I think you may find the Cacheflow PSU will not supply enough 12V current for the new board's needs. Given it's age, that's highly likely.

You can get the spec for the Intel board here:
http://www.intel.com/support/motherboards/server/n440bx/sb/cs-014870.htm

Assuming the PSU on the 3000 is designed for this board, no way will it ever support a P4 board, I'm afraid. If the 3000's PSU form factor is standard ATX then changing the PSU will sort the problem at minimal cost :)

Best of luck with it!