Question about AOpen FM56 PX (91ac001398) Modem

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This modem comes with two wired connectors, one a 4 pin and one a three. How are these hooked up?, and to what?

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I have enclosed a medium-sized image which indicates the physical connections for the modem u asked. Looking at the picture, may help you. Kindly revert if your require more information.This modem comes with two wired connectors, one a - 66c3146.jpg

Thanks and regards,

Posted on Sep 04, 2010


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Ms 7613 ver 1.1

View the motherboard photo at the Top, and also the Motherboard layout illustration, at a little over halfway down the page.

1) In the motherboard photo, all the way to the right side. View the Yellowish/Whitish connector, that has two columns of 12 socket holes.

This is where the 24-pin ATX main power cable plugs in.
In the motherboard layout illustration it is labeled - ATX1.

Here is a general example of this power cable, and respective connector on the motherboard,

Note that new Power Supply's, generally come with a 20+4-pin ATX main power cable.
This is so it can be used on the older computers that used a 20-pin ATX main power cable, and newer ones that need a 24-pin ATX main power cable.

Do not mix it's extra 4-pin power cable, with the 4-pin ATX +12 Volt power cable.

Note the Lock on the side/middle. It has a hook on the end. The hooked end goes over a Tab, on the motherboard's connector.
The Lock works on the same principle as a see-saw on a playground.

You squeeze the top near where the wires come in, and this brings the hooked end away from the Tab, on the motherboard connector.
With the top of the Lock still squeezed in, the power cable is then removed USING the connector. (NOT the wires)

When assured that the power cable is plugged in tightly, and correctly, the hooked end of the Lock will be over the Tab, on the motherboard connector.

2) Look to the left of the Processor socket, and halfway in-between it, and the outside edge of the motherboard.
Whitish 4-socket hole square connector.

This is where the 4-pin ATX +12 Volt power cable plugs in. Power for the Processor. Note that it also has a Lock, with a Tab on the motherboard connector.

In the motherboard layout illustration it is labeled - PWR1

General example of power cable,

That's it for the motherboard as for power cables that plug into it.

The rest of the power cables from the Power Supply, plug into the optical drive/s, harddrive, and card reader if used.

4) If your harddrive is an IDE (PATA) unit, it will use a 4-pin standard Peripheral power cable. Same with an optical drive that is an IDE (PATA) unit,

The computer case fan plugs into SYS_FAN1 connector, which is below the PWR1 connector. You may also have a computer case fan that uses the above power cable.

5) If your Harddrive, or optical drive/s are SATA, they will use a SATA power cable,

6) A Card Reader uses a power cable, that is also used for a Floppy Drive.

It is a 4-pin Small Peripheral power cable.
Has the same voltage wires; (Yellow - 12 Volts, Red - 5 Volts), and two Black ground wires, but a smaller connector, than a 4-pin Standard Peripheral power cable,

The front of your computer is the Front Panel.
The area of wires on the motherboard, that the main wires from the Front panel go to, is the Front Panel header.

Although the Front Panel header has NOTHING to do with the Power Supply, I will include it also,

Motherboard positioned in computer case; Processor to the Top, Ram Memory slots to the Right;
The Front Panel header is at the bottom/right of the motherboard.

Black rectangle with 9 contact pins.
In the Motherboard layout illustration, JFP1 is marked under this header.

There are 4 pins across the Top row, 5 pins across the Bottom row.
The pins on the Top row are numbered EVEN.
The pins on the Bottom row are numbered ODD.

Starting on the LEFT side going towards the Right, Top row;
Pins 2, 4, 6, and 8. There is NO Pin 10.

Starting on the LEFT side going towards the Right, Bottom row;
Pins 1, 3, 5, 7, and 9.

A) Pins 1 and 3 are for the HarDDrive activity LED. (Light Emitting Diode)
Pin 1 is for the Positive ( + ) wire.
If the HDD LED is dim when the harddrive is active, switch the wires around.

B) Pins 5 and 7 are for a Reset switch, IF a Reset switch is used.

C) Pin 9 is N/C. Not Connected. Reserved for factory use.

D) Pins 2 and 4 are for the Power On LED.
Pin 2 is for the Positive ( + ) wire.
If the PWR ON LED is dim when the computer is on, switch the wires around.

E) Pins 6 and 8 are for the Power On switch.

F) Again, there is No Pin 10.

For additional questions post in a Comment.

Aug 15, 2012 | HP Computers & Internet

1 Answer

I would like help on reconecting my pc cables,, the p1 - p8 from the power supply

For an Asus P4S800D-X desktop computer motherboard?
No problem, Luz.

The cables you have indicated are Power Supply cables.

Let me show where they go;

First I would like you to download the Motherboard Manual.
It will also come in handy later,

Click on the Download tab.
(Overview,Specifications,Download,Memory/Device Support,etc)

Scroll down, click on the + sign next to - Manual (6)
Scroll the page down to the bottom file, then click on the blue - Global (DLM), underneath -

Version E1753 / P4S800D-X User Manual English Version E1753

{ Note* To the right side there is a blue scroll bar. You have to scroll it down to see the blue Global (DLM) ]}

[ Ignore if you are aware.
This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on Global (DLM), it may take up to 30 seconds, before the first page comes up.

Took 10 seconds just now using a medium speed DSL connection.
At the top of the PDF file is the page number box, to the right of the Down Arrow. When I refer to a page it is this box I refer to.

At the top header of the PDF file also, is the Zoom In icon ( + ), and the Zoom Out icon ( - )
Zoom In increases the view size.
Zoom Out decreases the view size ]

Do not know exactly, what the P numbers on the power supply cable connectors are, that you have. Do know the normal markings, but it may vary.

It DOES NOT matter however. I will show you photos of the power cables, and will guide you where they go.

Go to Page 13.
Look at the top right corner. ATXPWR1. (Can't see it clearly? Use the Zoom In icon)

1) This is for the 20-pin ATX main power cable, coming from the Power Supply.

This is an example of a 20-pin ATX main power cable, and it's respective connector on the motherboard,
(Note* Color DOES NOT matter. Color of the connectors can be ANY color ),

Probably marked as P1.
Now look at all three photos. In the middle photo you will see a Lock, on the side of the power cable connector.

It acts like a see-saw on a playground. You squeeze the top in, and the hooked end of it comes away from the connector.
Now look at the photo to the left.

The motherboard connector has a matching Tab, for the hooked end of the Lock, to go over.
When the power cable is correctly plugged in, and tightly, the hooked end will go over that tab.

2) 4-pin ATX +12 Volt power cable:
Look at page 13 again. Note where the Processor sits.
(Has a Fan on top of a finned Heatsink, which sits on top of the Processor )

Come down below the Processor, towards the Northbridge chip. It has a Heatsink sitting on it. It is placed as a diamond shape.
Look to the left of that diamond shape. You will see a small square socket, with 4 socket holes. (Probably white in color)

This is where the 4-pin ATX +12 Volt power cable plugs in. It also has a Lock on the power cable connector, and a matching Tab on the motherboard connector.

Can ONLY be installed in one direction, because of the Lock, and Tab, just like the 20-pin ATX main power cable.

This is an example of a 4-pin ATX +12 Volt power cable, and it's respective connector on the motherboard,

Probably marked as P4.

THAT, is it, for power cables that plug into the motherboard.

Do NOT know if you are using an IDE, or a SATA harddrive.
Will post for both.

A) IDE harddrive:
An IDE harddrive uses a 4-pin Peripheral power cable.
(Standard 4-pin Peripheral power cable, really. Explanation later)

Looks like this,

Note that the 4-pin Peripheral power cable example, is also shown plugged into an IDE harddrive. (EIDE)

May be marked as P2, P3, P5, P6, etc.
DOES NOT matter what P number it has, Luz.
As long as it looks like this, it will be FINE. Use any P number you want.

{ Note shape of connector. Has rounded corners on one side.
ONLY plugs in one way.
Note also that it has;
1 Red (5 Volts) wire, 1 Yellow (12 Volts) wire, and 2 Black wires.
(Ground wires. ALL Black wires are Ground wires}

B) SATA harddrive:
Uses a SATA power cable. Note that a SATA power cable has 15 contact pins. It is LONGER than the 7 pin SATA data cable.

Note that the inside shape is an L shape. ONLY lines up one way,

IF, you have a SATA harddrive, that has a provision for a 4-pin Peripheral power cable, AND a SATA power cable; ONLY use the SATA power cable!

DO NOT use both.

You will burn up the SATA harddrive. May not happen right away, but I assure you it will happen down the road.

This is what a SATA data cable's connector looks like,

Top photo. Again, color DOES NOT matter. Also note the L shape in the center of the connector. Both the power cable's connector, and the data cable's connector, have this L shape in the middle.
Goes over the L shape of the Harddrive's connectors.

[ SATA optical drive, (CD/DVD drive), also has an L shape for it's connector ]

IF you have a card reader it uses a Small 4-pin Peripheral power cable. Now you will see the difference, and why the other 4-pin Peripheral power cable is designated Standard,

Used to be used for a Floppy drive. Note the colors of the 4 wires.
Red, Yellow, and 2 Black wires.

Have more than one, and have a card reader? DOES NOT matter what the P number is. As long as it looks like this, you can use ANY of them.

For additional questions please post in a Comment.

{ Also, the first 4-pin Peripheral power cable connector, was made by Molex.
The name stuck. Molex power cable.
Ummmm, NO.
Kind of like the adjustable open-end wrench, being called a Crescent wrench }


Jun 17, 2012 | ASUS P4S800D-X Motherboard

1 Answer


Not a problem, but it would be handier to have the manufacturer Name, and Model Number.

(Back of computer on a sticker, next to the Windows product key, or up on the side of the computer tower )

SMPS = Switched-Mode Power Supply. The style used in personal computers now,

A) Main power cable:
There are three styles;

1) The old AT style that has two separate connectors. The connectors BOTH connectors have BLACK wires towards one side.

The connectors also have ONLY one way, (Direction), they can be plugged onto the motherboard.
This is due to the Lock, and Locating Tab on the motherboard connector/s, and the main power cables connector/s.

When you can plug the connectors on the motherboard, with both connector's BLACK wires facing each other, (They will be in the middle), you have them installed correctly,

2) The newer ATX style. Uses one power cable, and connector.
First style to come out was the 20-pin ATX main power cable,

20-pin ATX main power cable's connector, has a LOCK on one side.
This Lock locks over a Locating Tab, on the female motherboard connector.

To remove this power cable you squeeze in on the Top of the Lock.
The Lock operates like a see-saw on a playground. When you squeeze the top in, you remove it's hooked end away, from the Locating Tab of the motherboard connector.

To be ensured that this cable is plugged in tightly, and correctly, the Lock's hooked end will be over the Locating Tab, on the motherboard connector.

3) The newest style is the 24-pin ATX main power cable.
As computer hardware evolved, and became better, it demanded more power.
The extra 4 pins of the 24-pin ATX main power cable provided this,

[ Aftermarket power supply manufacturers, provide power supply's with a 20 + 4-pin ATX main power cable, usually.
You can use it as a 20-pin ATX main power cable, or use the additional 4 pin cable, and use it as a 24-pin ATX main power cable ]

4) Motherboard didn't provide enough power for newer Processors.
The 4-pin ATX +12 Volt power cable was brought out.
(Has Lock with Locating Tab on the motherboard connector, also)

5) Motherboard didn't provide enough power for high-end graphics card.
4-pin ATX +12 Volt power cable didn't help.
The 6-pin PCI Express power cable was brought out,

Plugs into a graphics card.

[ Note*
In all power cables, Red wires are 5 Volts. Yellow wires are 12 Volts. ALL Black wires are Ground wires ]

Next in line was two versions of the 8-pin power cable.

A) 8-pin EPS +12 Volt power cable.
Originally brought out for server computers, that has multiple Processors.
Plugs into the motherboard.

B) 8-pin PCI Express power cable.
Brought out for more power, than a 6-pin PCI Express power cable could put out.
Plugs into a graphics card.

(6-pin PCI Express power cable is capable of handling 75 Watts.
8-pin PCI Express power cable will handle 150 Watts )

If you have an IDE (PATA) harddrive, a 4-pin standard Peripheral power cable is what you need. ('Molex' is the slang term for it's connector)

If you have a SATA harddrive you need a 15-pin SATA power cable.

IF, your SATA harddrive has a provision for a 4-pin standard Peripheral power cable, AND a SATA power cable;

ONLY USE the SATA power cable!

If you use both you will burn out the harddrive. Maybe not immediately, but I assure you down the road you will.
(Do not use just a single 4-pin standard peripheral power cable, either)

Optical drive/s use a 4-pin standard Peripheral power cable, if they are IDE (PATA) units.
If they are SATA units they use a SATA power cable.

The old Floppy Drives use a 4-pin small Peripheral power cable.
Same cable plugs into a Card Reader, also.

The plastic front of your computer is the Front Panel.

The area of contact pins on the motherboard, that the cables, (Wires), from the Front Panel go to, is the Front Panel header.

Sometimes abbreviated on the motherboard as;
F_PANEL 1, or FP1, etc.

I will need to know the computer manufacturer name, and Model Number, (HP = Product Number, or P/N), or the manufacturer name, and Model Number of the motherboard, to TRY to provide this information.

Post back in a Comment.


Apr 12, 2012 | Computers & Internet

1 Answer

Had to get a new power supply for my GT4016. When I got ready to hook up the motherboard power connector I realized the power supply has a 20 pin connector and the motherboard connector has 24 pins. Did...

on the part of the power supply there is another connection with 4 pins the 20 pin and the 4 pins click together then slot into motherboard thats usually wat the problem is theres AT and ATX motherboards see if you have those extra 4 pins hanging loose on the wires they slide into each other then into motherboard

Oct 09, 2011 | Gateway GT4016 Desktop PC

1 Answer

Got a new tach ,my car doesn't have one, how do I hook it up to a '90 buick 3.3 with electronic ignition? The "instructions" only show how to hook up to standard ignition.

Hello! Your vehicle is equipped with a distributor-less ignition systems; C-31...Does your engine have a "coil pack"? As in two cylinders per coil? The coil pack has a two wire connector at the top which is Ground and +12 volts...At the bottom are 2 connectors...The one on the left is a 4 wire and to its right a 2 wire...the one you are interested in is the 4 wire connector...Reading from left to right...Pin 1=Ground...Pin 2=Reference voltage...Pin 3=6X...
And Pin 4=Tachometer
...Hook the Tachometer wire (probably a green lead) to Pin 4...There is the possibility that the ignition module has a Tachometer input connection...If so use it...If not use Pin 4...


Dec 26, 2010 | Buick Skylark Cars & Trucks

1 Answer

I am trying to find the wiring diagram for my 2002 FXD. I am installing a trunk and need to know the light wiring diagram in order to hook up the tail and turn lights on the trunk.

Connector 7 is under the seat. It is the main harness to tail lite connector. The wires from main connector are:
2002 All DOM and INT Including FXDWG

Connector 7 pin 1 goes to tail lite 94 connector pin 2 = BW

pin 2 goes to 94 pin 1 = O/W

pin 3 goes to 94 pin 5 = V

pin 4 goes nowhere = empty

pin 5 goes to 94 pin 6 = BK

pin 6 goes to 94 pin 4 = R/Y

pin 7 goes to 94 pin 3 = BE
pin 8 goes nowhere = empty

Connectors 93, 94, 18, 19 are all in the tail lite assembly.
19 = Rt Turn pin 1 = V/BN pin 2 = BK
18 = Lt Turn pin 1 = V/BN pin 2 = BK

93 = Brake and running lites pin 1 = BE = Dom running pin 2 = O/W = HDI running pin 3 = R/Y = Brake pin 4 = BK = ground

Jul 25, 2010 | Harley Davidson FXD Dyna Super Glide...

1 Answer

I have a 201 e250 van the code p1518 comes up,the service engine light is on,what is p1518,it also shuts off when ever i am at a stop sign

Hello! A P1518 is a Intake Manifold Runner Stuck Open...It is a device that is held in place by three bolts and is located on the front of the intake manifold...There are two Actuator Rods...A 4 wire connector plugs into the top...Pin #1=Black (ground)...Pin #2=Dark Blue/Light Green...Pin #3=Red...Pin #4=Dark Blue/Yellow...

Check the connector for loose, frayed, contaminated, or open wires...However the Actuator is more than likely jammed with carbon...


Feb 27, 2010 | 2002 Ford F150 Regular Cab

1 Answer


Hi there
The front panel connectors are mainly,
  • harddisk activity connector
  • power switch connector
  • reset switch connector
  • power LED connector
  • speakers connector
  • USB connector
Harddisk activity connector
This normally comes red in colour and is labeled as HDD-LED
Power switch connector
This comes green in colour and is labeled as POWER-SW
Reset switch connector
This usually comes grey in colour and is labeled as RST-SW
Power LED connector
This is usually green in colour and is labled as PWR-LED
Speakers connector
This speaker will give different beep sounds during boot to tell the user if there is any errors. It occupies 4 pins, however only 2 is important for the function. Be sure to connect the red coloured cable to the positive polarity and the black to the negative.
front_panel_connectors.jpg Front panel connectors pins on the motherboard
front_panel.jpg Front panel connectors from the casing

Good luck and thanks for using FixYa!!

May 13, 2009 | eMachines T6420 PC Desktop

1 Answer

RS-422 connection RJ12

What I was told through the mfg. was:
pins 1,8 =NC
pins 2,7= Chassis Ground
Pin 3= TX-
Pin 4= TX+
Pin 5= RX-
Pin 6= RX+

This would actually be a RJ45 (8pin) but uses the 6 pin cable and only 4 com wires.
Evidentally there is no standard for the pin usages for serial communications with RJ connectors. So this information might not be valid for other equipment.

Jan 20, 2009 | 3Com Computers & Internet

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