How are all these voltages wired into the plugs. I need the 12V 4pin to power my CPU

Maybe this will help!?
Hope so

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Best to you

When you say charging,do you mean amp reading or volt reading?Amps should rise when first started then drop.Volts should stay close to constant.The small wire going to the alternator to power the regulator in the alternator is just switched power.If the volts fall under 14 after ten minutes you may need to try a replacement alternator.

power up the power supply an use a multi-meter to measure the voltage between the black wires and the other colored wires to determine the voltage on each of the colored wires.

The power supply is held in place by four screws. You will need a philips head (+) screwdriver for the job.

See this diagram as you read the description below.You will be using this diagram to identify different types of connectors... ignore any voltages or wire descriptions/colors that are there.

As for the wires, there are a few different types.
Main Power Connector You will notice a larger connector with 20-24 wires coming out of it. This will connect to the motherboard (and will only plug in one way). Notice there are two different ones on the diagram... one is 20 the other is 24... you probably require the 20 if I was guessing. If there is an extra bit on your connector (to compensate for 24 pin connectors), just ignore it... It will be fine just resting aside the others not plugged into anything.

Peripheral Connectors and Sata connectors
Your hard drives and Cd drives will either use 4-pin (four wires per plug, bout an inch in width) and will only plug in one way, or will use a SATA power cable which is also about an inch wide, will probably be black on the connector, and looks like it has an L shape inside it. These all just snap in place. Make sure each hard drive, and each Cd drive has a power cable going to it. (if there are multiple choices, it makes no difference, as long as everything has power.

Peripheral Connector
If you have an after-market or third party video card (one that you have added or purchased separately) it may require its own power wire... This will (in most cases) be a four wire connector, and will plug into the edge of the video card. If you have not purchased a video card, this wont be a concern, as the default video gets its power from the motherboard its self.

+12v Power Connector
Lastly, there may be an extra power plug that goes to the motherboard (it will be four or six wires and will be arranged into a cube... unlike the hard drive wires which were in-line.) This four-wire square plug (or six wire) will plug into the motherboard somewhere near the processor.

Hope this helps!

Most motherboards will give tell you all of the voltages being provided by the power supply in the bios under hardware or health monitoring section. Otherwise you will need a multimeter to test the different voltages. You would want to set the multimeter to the 20v or similar setting. Depending on what voltage you would want to test would determine the color of wire you would check. You would connect the black/negative/ground lead of the multimeter to one of the ground wires coming from the power supply normally a black wire. The 12v is normally a yellow wire, the 5v is normally a red wire and the 3.3v is normally an orange wire. The wires may be different colors so you may want to look up the ATX pinouts to find the exact voltages you want to measure.

The motherboard is stopping while you connecting the 12V 4pin connector because of VRM short circuit (Voltage Raiser Module, CPU V-Core circulatory). Contact Nearest Gigabyte support center for support.

Basically each connector is made so that it can only go where it should go unless you do some modification or really force the connector in.


All in all you should have one 24pin brick of wires. This is made up of 20pin block plus 4pin block.
If your computer mainboad requires 24pins of power then take the 20pin block and add the 4pin block to it. If not then just use the 20pin block.

Then there is the 4pin CPU power brick. Can only go in one way.
This 4 pin block is not to be confused with the other 4pin block found on the 24pin brick.

Lastly there are 4pin Molex, SATA and stiffy connectors, they can also only go in one way.

If it all fits in then you should be alright.

CPU: 4pin
Mainboard: 20+4pin
Hard drives: Molex or SATA power

damnor01

Yes, just make sure all the voltages go where they are supposed to go.

Hi,

check the +12V supply(between yellow wire and black wire) at the 4 pin power plug connector for the CPU.
If there is no voltage then you will have to change the power supply(SMPS). Thanks

a ford agency has, in the parts dept., the wiring diagrams of cars of previous vintages. in one such book, i discovered that the black-with-white-trim wire beneath the front seats of the '98 is the +12v wire, labelled b/w on the diagram. on the '93 it is the blue wire, with a different plug configuration. got both plugs from wrecked cars, wired up a spliced transition harness so that one would adapt to the other, and it all worked fine. hope this info will save some other wrecking yard artist from having to do the same task. ggp