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Do I plug the IDE hard drive cable?

Do I plug the IDE hard drive cable into the blue or the white connector pin on the motherboard? Please and Thank-you!

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  • xmacseven Dec 01, 2008

    Replacing an old one. Thanks, I will give this a try and let you know!

  • xmacseven Dec 01, 2008

    Thank-you very much - these were the answers I was looking for. Problem fixed! Thanks again, D Mac

  • xmacseven Feb 13, 2009


    Thank-you very much.

    All replies very helpful

    and very much appreciated!



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If the hard drive is your system drive you want to connect it to the IDE1 connector. Color coding isn't standard, so you'll need to look at the board for labels screened on. Both connectors are the same, so if you get it wrong you won't damage anything. The computer will come on, but you may get error messages when the operating system doesn't start up. If that happens, just shut the power off and plug the cable into the other connector.

Posted on Dec 01, 2008

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Not all motherboards have this color coded. Here are the general rules: The large connectors are divided into two groups. There is a smaller FDD (floppy disk driver connector) that has 34 pins. And there is at least one larger 40pin IDE/EIDE connector. If you have multiple IDE/EIDE connectors, which one you use is not important. What is very important is to ensure you align pin one of the connectors and you select the correct device order. Some cables are not keyed and allow connection either way- make sure the color coded wire is going to pin one of the connector (there may me an arrow-head indicator on the cable connector also). Device order is selected two ways: if the cable you are using has two device connectors on it (besides the connector to plug into the board), the middle is for slave, and the end connector is for master. If there is only one device connector, then it is master only. The device (let's say it is your 1TB Hard Disk ;-) will either have an auto-detect (nothing for you to do), or a jumper on it to select [slave, master, or auto]. There will be writing on the back to inform you of this, and the proper setting of the jumper. Ensure you have connected master/slave commonly on the cable and the device. Note also, it is advisable to have your boot disk as a master.

Posted on Dec 01, 2008

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First, are you adding a new drive, or replacing an old one? There are usually two connectors for hard drives on the motherboard, a primary and secondary interface. Sometimes you can see the writing on the motherboard. Usually, either one will let your computer use the hard drive. If you've tried both connections and it still doesn't work, then there's a possibility that your drive jumpers need to be set. It's a small colored square that fits over two pins in the back of the drive. There are usually six pins but can be more. They are designated Master, Slave and Cable Select. You might see them as just MS, SL and CS or something like that. If you have only one drive, then it should be set to Master. If you have two drives, it needs to be the opposite of the other drive. (If the other drive is a master, your new one needs to be slave) This holds true for CD drives as well. Lastly, if one drive uses the Cable Select jumper, then use the Cable Select jumper on the other drive.

Posted on Dec 01, 2008

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Skimatice for hard drive connections


The eMachines T6532 uses an MSI MS-7207 motherboard.
Also known as the KN8GM2-L,

[ ]

The MSI motherboard has provisions for using, EITHER an
IDE (PATA) harddrive, or a SATA harddrive. (Or more than one)

Two different technologies.
I will explain both, using an IDE (PATA) harddrive,
Using a SATA harddrive;

On the MSI Support page above, click on the Download tab.
(Overview / Specifications / Download / Support / etc)

In the drop down list click on - Manual

Language > English > 7.1MB >
Click on the blue

On the next page click on the country name nearest yours.
A small window will come up -

Make SURE there is a Green dot in the small circle, to the left of Save File.
IF not; Left-click in the small circle to the left of Save File.
Now go below in the small window, and click on OK

A small download window will come up. Allow the file to download ALL the way, then DOUBLE-click right on it.

In the next small window go to the far left, and click on -
Extract all files.

At the bottom of the next 3 small windows, click on -
Next, Next, and Finish.

In the last small window DOUBLE-click right on the file name.
(7207v2.0(G52-M7207X5) next to the red Adobe PDF icon)

There is the Motherboard Manual

The MS-7207 has two IDE slots;

IDE 1, which is Yellow in color, and close to the outside edge of the motherboard.
Should have IDE 1 silkscreened on the motherboard, below it.

IDE 2 is Yellow in color also, and right next to IDE 1.

(IDE 2 is in-between IDE 1 and the Ram Memory slots.
The Purple, Slot 4, ram memory slot to be specific. {DIMM 4 )

IDE 1 is used for an IDE harddrive.
IDE 2 is used for an IDE optical drive.

TWO IDE harddrives can be put on a single flat ribbon IDE cable,

NOTE that there are two styles of IDE flat ribbon cables;
40-wire cable,
80-wire cable.

BOTH have 40 socket holes in their connectors.
(ONLY 39 are used, so one hole May, or May Not be blocked off)

How to connect to a 40-wire IDE cable, or an 80-wire IDE cable,

An IDE cable usually has a Locating Lug on it's connectors, in the middle of the connector; and on one side,

Here you see the Locating Lug as being two separate 'ridges'.
Some styles the Locating Lug is single block.

The motherboard connector has a matching Cutout on one side.
The Locating Lug lines up with the cutout when installing the cable.

The Harddrive, and optical drive (CD/DVD drive), will have a cutout on their circuit boards.

There are 40-pins. (Only 39 are used if so)
One of them is the number 1 pin.
The IDE cables are plugged into the motherboard, with number 1 pin lining up with number 1 wire, in the IDE cable.

Same when the IDE cable is plugged into a Harddrive, or optical drive.

IF, there is no Locating Lug on the IDE cable;
Look for the faint RED stripe, on the side of the IDE cable.
Number 1 wire is on the same side, as the faint Red stripe.

When plugging into a motherboard, Number 1 pin is on the Bottom.
The faint red stripe on the cable, goes towards the BOTTOM of the motherboard.
(Motherboard installed in computer case)

When plugging into a Harddrive, or optical drive; the faint red stripe ALWAYS goes toward the power cable,

This shows you the Back of an IDE (PATA) harddrive, and the power cable used for it.
If -> No Locating Lug on IDE cable, the faint Red stripe goes towards the power cable.

This is a 4-pin standard Peripheral power cable.
Note when installing the rounded corners ALWAYS goes UP.

[This power cable is frequently, and erroneously; referred to as a 'Molex' power cable.
Molex was just the first manufacturer of the power cable CONNECTOR. Name STUCK.

Kind of like calling an adjustable open-end wrench, a 'Crescent wrench ]

A SATA power cable is used for a SATA harddrive, or SATA optical drive,

There is an L-shape in the SATA power cable's connector.
It matches an L-shape on the Harddrive, or optical drive.

Between a SATA power cable's connector, and a SATA data cable's connector; a SATA power cable connector is the LARGER of the two.
A SATA power cable has 15-contact pins.
A SATA data cable has 7-contact pins.

A SATA power cable's connector may have a LOCK on it.
Usually a Tab, or 'bulb' type affair.
It is pressed down with the thumb when installing, or removing the SATA power cable.

This is a general example of a SATA data cable,

Now you can see the L-shaped opening a little better, that both the SATA data cable have, and the SATA power cable, has.

In the photo the SATA data cable's connector, is a 90 degree bent Elbow.
This style of connector is usually used on the Harddrive, or on the optical drive.

A Straight connector style is usually used for the Motherboard.
However, you can use a SATA data cable, that has a Straight connector on both ends.

Looking at your motherboard, installed in a computer case; there are 2 SATA connectors on the motherboard.

(CAN, be up to FOUR)

I see one motherboard reference where they (2) are Orange in color, (Newegg), and the motherboard manual shows them (2) to be Purple in color.

They are located towards the Bottom/Right corner of the motherboard.
Above the CMOS battery.

The SATA connector that is closest to the Outside edge of the motherboard, is SATA1 (SATA 1)

The Harddrive plugs into SATA 1.

An optical drive that is SATA, will plug into the SATA2 connector.
To the Left of the SATA1 connector.


DOES NOT MATTER, which SATA connector you plug the Harddrive, or optical drive; into.

The beauty of SATA, is that you can plug the Harddrive or optical drive into ANY SATA connector, (On ANY motherboard), and BIOS will find those devices.

BIOS looks FIRST, to see which drive has the Operating System on it. (Windows)
THAT, is the Harddrive.

After finding the drive with the O/S on it, then BIOS will find all the other drives. Removable, or not.

So there you have it. A lot of reading.
You need a power cable, and a data cable to the Harddrive.
Same thing for the optical drive/s.

To have me clarify anything I have stated above, please post in a Comment.

For additional questions please post in a Comment.

Apr 15, 2013 | E-Machines T6532 PC Desktop

1 Answer

Mcp61sm-am motherboard manuel needed

Ya know Acer owns Gateway now,

A) Power Supply to motherboard cabling;

Scroll down to the motherboard top view photo.

Product Views > Hardware Details

1) 24-pin ATX main power cable. (S - Main Power Connector)

This is a general example of a 24-pin ATX main power cable, and it's respective connector on the motherboard,

[Note color of connectors does NOT matter ]

Note the Lock on the side of the main power cable's connector, and the matching Tab on the motherboard connector. When properly plugged in, the hooked end of the Lock will be over the Tab, on the motherboard connector.

In the photo of the motherboard shown on the Ebay link, this connector is on the Right side of the motherboard, next to the blue IDE (PATA) connector.

2) 4-pin ATX +12 Volt power cable; (F - Auxiliary 12V ATX Connector)

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

In the motherboard photo; Small square 4-socket hole connector, to the Bottom/Left corner of the Processor socket.

This power cable's connector also has a Lock, and the motherboard connector has a Tab.

That's all the power cables that go to the motherboard.

B) With 2 SATA headers (Connectors) on the motherboard, and one IDE (PATA) connector, it suggests to me that this motherboard is set up to use a SATA harddrive.

This is a general example of a SATA power cable,

Note that it has 15 contact pins, and between it, and the SATA data cable connector, it is the larger of the two.
There is a Lock tab on the connector that you depress, to install, or remove the cable.

You can use a SATA optical drive (CD/DVD drive), or an IDE (PATA) optical drive.
An IDE (PATA) optical drive uses a standard 4-pin Peripheral power cable,

[ Misnomered as a 'Molex' power cable. Molex was the first to make the power cable's connector. Name stuck, kind of like calling an open-end wrench a Crescent wrench ]

A SATA data cable is used for the SATA harddrive. The connector end that goes to the Harddrive, is usually a 90 degree bent elbow.
The straight end plugs into the motherboard,

General example of a SATA data cable, and it's corresponding connector on the motherboard,

Note the L-shape in the inside of the SATA data cable's connector, and the L-shape on the motherboard connector. They line up.
The SATA power cable also has this L-shape.

In Hardware Details click on -> Q - SATA Connectors
The Bottom one, or one closest to the outside edge of the motherboard, is SATA1.

Although it isn't marked on the motherboard, or at least not visible in this photo, SATA 4 is. Look at the top where a SATA 4 connector would be.
The SATA harddrive should be plugged into the SATA1 header.

HOWEVER, the beauty of SATA is that it does NOT matter, which SATA header on the motherboard, you plug the SATA harddrive into.

BIOS will find it.

(Supposed to be SATA harddrive to SATA1, and a SATA optical drive to SATA2)
In the motherboard photo on Ebay, they are Orange in color, and under the blue IDE (PATA) connector.

C) Going from Hardware Details and the Ebay motherboard photo;

B - CPU Fan 1 Connector, is where the Processor fan plugs in.
In the motherboard photo, there are 7 cylindrical Electrolytic Capacitors in a row, to the left of the processor socket.

This connector is located immediately above the top capacitor, near the outside edge of the motherboard. (Brown in color)

E - Floppy Disk Connector, is above the white 24-pin ATX main power cable's connector, and the blue IDE (PATA) connector. It is Yellowish in color. (34 pins)

G - System Fan Connector, is white in color, has 3 contact pins, and is located under the white, square 4-pin ATX +12 Volt power cable connector. This is where the computer case fan plugs in.

I - PCI Express x16 Connector, is Orange in color, and below the processor socket. It has PCI Express silkscreened on the motherboard immediately below it.
This where a graphics card, and ONLY a graphics card, is installed.

J - PCI Express x1 Connector, is white in color, and immediately below the orange PCI Express x16 connector.
This is NOT used for a graphics card.

Whatever you can use in a PCI slot, except a graphics card, can be used in this slot; -> Provided it is a PCI Express x1 card.
(Ethernet Card, Sound Card, etc)

L - CD-in Connector is where the audio cable from the Main (Primary) optical drive goes to.
Ya got me on this one. I know it's located real close to the Realtek audio chipset, and I think that is to the left of the orange PCI Express x16 slot.

M - Front Audio Connector, is where the front audio (Sound) ports, of the Front Panel connect to.
Green in color, and located under the bottom white long PCI slot, and near the outside edge of the motherboard.

N - Clear CMOS Jumper is self explanatory. It is located under the finned Heatsink, (Looks like a meat tenderizer), of the Southbridge chip.
(Which is located under the Ram Memory slots)

O - USB Connectors are Yellow in color, and located under the finned Heatsink of the Southbridge chip, and towards the outside edge of the motherboard. (Or also located under the Ram Memory slots)

P - Front Panel Connector, is located at the Bottom/Right corner of the motherboard, close to the 'Buzzer'. (Buzzer is used for BIOS Beep Codes) PANEL1

4 pins on the Left side, 5 pins on the Right side.
The pins on the Left side are numbered EVEN.
The pins on the Right side are numbered ODD.

Starting on the Bottom of the Left side going Up;
Pins 2, 4, 6, 8, and 10.

Starting on the Bottom of the Right side going Up;
Pins 1, 3, 5, and 7

A) Pins 1 and 3 are for the HarDDrive activity LED. (Light)
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 Not Connected. Used by the factory.

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

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

More to follow.
For additional questions please post in a Comment.


Oct 06, 2012 | Acer Aspire™ T180 PC Desktop

1 Answer

Missing power pack some ribbons

Rut Ro!


1) Three 'ribbon' cables are all you need.
Two IDE 40-pin cables, and One 34-pin Floppy Drive cable.

The wider 40-pin IDE ribbon cables are for the Harddrive, and Optical Drive/s. (CD/DVD drives)
(Actually 40 -> socket holes, and actually only 39 are used)

The narrower 34-pin IDE ribbon cable is for the Floppy drive.

I would like you to look at a Locating Lug, on an IDE flat ribbon cable, (IDE is also referred to as PATA),

Note on the blue rectangular connector, the two ridges at the Top/Middle. This is a Locating Lug. Shapes vary, but the same basic principle is kept.

Note the two IDE motherboard connectors. One Blue, one Black.
Note on the blue IDE connector that there is a cutout on one side.
(Outside edge of motherboard, Middle of side )
This is what the Locating Lug lines up with.

[Note also that IDE1 is silkscreened, on the outside edge of the motherboard, and between the blue IDE connector.
This is where the harddrive cable plugs into.

IDE2 which is right above (Black), is where the optical drive/s cable plugs into ]

IF, there is No Locating Lug on the flat IDE ribbon cable's connector;

The thin Red stripe on the side of the flat ribbon cable, denotes which side Number 1 wire is on.

Looking at your motherboard, with the Processor to the Top, and Ram Memory slots to the Right; Number 1 pin in the two IDE connectors on the motherboard, is on the BOTTOM.

The Red strip on the flat ribbon cable, goes towards the Bottom of the motherboard.

Looking at the back of your IDE harddrive, start at the Right side, go towards the Left;
On the right side are 4 pins. These are for the power cable. To the left of them are jumper pins. To the left of the jumper pins is where the flat ribbon cable plugs in.

The Red strip ALWAYS goes toward the power cable.
Same thing with an optical drive.

With the above Gateway E-4000 motherboard example, the IDE connectors for the Harddrive, and optical drive/s, is at the Top/Middle.
The White connector is for the Optical Drive/s cable. (IDE2)
The Black connector above it is for the Harddrive cable. (IDE1)

The smaller black connector to the Left of the black Harddrive connector, is for the Floppy Drive cable.
The whitish opaque long connector under the black Floppy Drive connector, is where the 20-pin ATX main power cable plugs into,

(Note color of connectors does Not matter)

3) Where the black Processor Fan is. Come to the Bottom/Right corner of it. Go straight across, and stop under the aluminum finned Heatsink, above it. (Heatsink looks like a meat tenderizer)

This whitish square 4-socket hole connector on the motherboard,
is where a 4-pin ATX +12 Volt power cable plugs in,

Note that both it, and the 20-pin ATX main power cable's connector, has a Lock on one side. This lines up with a Lock Tab on the motherboard connector. When the power cables are deemed to be tightly, and properly plugged in, the hooked end of the Lock will be over the Lock Tab.

This type of power cable plugs into the Harddrive, and Optical Drive/s,

(Commonly misnomered as a 'Molex' power cable. Molex was the first company to make the connector, and their manufacturer name stuck. Kind of like referring to an open-end wrench as a Crescent wrench)

4-pin Peripheral power cables may also be used for computer case fans.
(Yellow wires are 12 Volt wires. { DC }
Red wires are 5 Volt wires. { DC }
Black wires are Ground wires.
Do not hook up a 5 Volt fan to a 12 Volt wire )

Intel D845GRG motherboard is Gateway part number 4000828,

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

In the list click on Q - Front Panel connector
Motherboard installed in computer case the Front Panel is down in the Bottom/Right corner. It is the second header over from the Right.

The pins across the Top row are numbered EVEN.
Starting on the LEFT side going towards the Right;
Pins 2, 4, 6, 8, 10, 12, 14, and 16.

The pins across the Bottom row are numbered ODD.
Starting on the LEFT side going across to the Right;
Pins 1, 3, 5, 7, 9, 11, 13, and 15.

A) Pins 1 and 3 are for the HarDDRive activity LED (Light)
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, 11, 13, and 15 are not used. Reserved for the factory.

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

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

F) There is No Pin 10
There is No Pin 14
Pins 12 and 16 are N/C. Not Connected.

You can also see in the list where the Front Panel USB ports connect to (P - Front Panel USB connector), and the Front Panel Audio ports, (V - Front Panel Audio jumper )

The Power Supply used is a piece of Cr@p.
160 Watts. This is what it looked like,

Gateway part number 6500704,

(Click on Product View, and on Specifications)

It is approximately 6 Inches Wide, 3-1/2 Inches Tall, and 4-1/2 Inches Long.

When installed there is a green plastic lock, that swings over to lock the Power Supply in.
I would remove that green plastic lock mechanism, and use an ATX Power Supply.

All the same dimensions as above, except it is 5-1/2 inches Long.
ATX power supplies are used in a LOT of desktop computer, and readily available. A VERY common Power Supply.

Guess what else? You won't be stuck with a lowly 160 Watt power supply, or have to pay through the nose to get another piece of junk like it.

The Philips head screws in the back of the computer case, hold the Power Supply in just fine, without that plastic piece of junk, also.
An example of a Power Supply that would work, green plastic Lock removed,

430 Watt Power Supply will Not harm the computer.
Because a computer ONLY uses the power it needs, and NO more.

For additional questions please post in a Comment.


Sep 01, 2012 | Gateway E-4000 PC Desktop

1 Answer


The HP Pavilion 503n Desktop PC uses an IDE (PATA) harddrive,

HP Support > Pavilion 503n Desktop PC > Main Support page,

In the list click on - Product information
Now click on - Product specifications
Lastly click on -
Motherboard Specifications, TriGem 2002052 (Glendale)

Takes you to this page,

Scroll down, and look at the motherboard illustration, and photo.

Viewing the illustration look at the bottom right.
Primary IDE is where the harddrive plugs in.

In the motherboard photo this is the long Blue connector.

Now lets view an IDE 'ribbon' cable,

Click on the photo to the upper right that shows the IDE cable, and it's blue connector. (The photo on the left of it shows the motherboard connector)

Here you see the rectangular connector, and a small square 'bump' on top.
The bump is a Locating Lug.

This lug is lined up with a cutout, in one side of the motherboard connector.
The other end of the cable's Locating Lug, lines up with a cutout on the back of the harddrive.

IF, there is no Locating Lug on the IDE cable connector;

There is a faint red stripe on one side of the cable. This is Always on the same side as number 1 wire, in the cable.

On the above link scroll the page down towards the middle, and the IDE cable illustration. (Under the heading - Parallel ATA Interface )

Number one contact pin on the harddrive, is ALWAYS towards the power connection, on the harddrive.


The above is for a Western Digital IDE harddrive, and shows the jumper settings.
I posted it for the back view of the harddrive.

Look at the where it states - 40-pin IDE connector.
Now look at the right side where it states - Power connector

When the IDE flat ribbon cable is plugged into the harddrive, the faint red strip faces - Power connector

On the motherboard look at the blue connector stated above.
Looking at it with the optical drive connector above it, (Secondary IDE),
the red stripe goes to the LEFT.

With the IDE cable plugged into the Primary IDE, and the Secondary IDE connector above the Primary IDE connector, the faint red stripe goes to the LEFT.

Need an IDE cable?

For additional questions please post in a Comment.


( Jose,
The plastic front piece of your computer is the Front Panel.

The area of contact pins on the motherboard, that the wires from the Front Panel go to, is the Front Panel header.
If you need a pinout of what contact pins these wires go to, just state in a Comment )

May 03, 2012 | HP Computers & Internet

3 Answers

Should the sata cable be hooked up to the cd drive or the hard drive and where can i find pictures of where the inside cables should be attached to

One end of the Sata Cable is to be attached to the CD/DVD (Optical Drive) or Hard Disk, whereas the other end is to be attached to the motherboard. The Sata connections on the motherboard are located near the CMOS/RTC Battery as indicated below: - (Blue, White, Yellow and Black, at right-hand top corner)

Hope it helps! Good Luck! Thanks for using Fixya!

Jul 04, 2011 | HP Pavilion a1540n PC Desktop

1 Answer

Hello I have a T2682 and I have taken this computer apart many times and I just got back from Afghanistan and just wanted to see if I could get it going one last time but I forgot what wires plug in where...

The beep you hear is a BIOS Beep Code. The computer's method of informing you something is wrong, and the area to look into for it.

The code is similar to what you may be used to.
(Afghanistan, Army? If so, hello brother/sister. 1st Cav, 13th Sig. Corp)

The BIOS Beep Code is similar to a Morse Code.

Two short beeps followed by a long beep, a pause of silence, then the pattern repeats, over, and over.

One short beep indicates everything is okay.
This is an indication that BIOS has concluded the Ram Memory count, and everything is 5 By.

According to my sources, the eMachines T2682 desktop computer uses an Imperial GV motherboard model, made by TriGem.

The front plastic cover of your computer is the Front Panel.
The area on the motherboard that the cables, (Wires), attach to on the motherboard, is the Front Panel header.

This is the Front panel header pinout, for the TriGem Imperial GV motherboard,

On this page I would like you to scroll down to the heading -
Imperial GV Front Panel Motherboard Pinouts

Looking at the pinout;

1) Pin 1 is Not used. NC = No Connection

2) Pins 2 and 3 are for the Power On LED light
[Light Emitting Diode]

Pin 2 is for the Ground wire. (GND) ( - )
Pin 3 is for the LED light power wire. ( + )

3) Pin 4 is not used. NC

4) Pins 5 and 6 are for the Harddrive Activity light. (LED)
HDD is HarDDrive

Pin 5 is for the LED power wire
Pin 6 is for the HarDDrive signal wire
(If after attaching the wires the HDD LED light is dim, reverse the wires)

5) Pins 7 and 8 are for the Power On switch.
Pin 7 is for the Ground wire.

Attaching the Peripheral cables;

1) You have an IDE harddrive. Uses a 40-pin IDE ribbon cable.
(39 actually. One pinhole is blocked off)

There is a Locating Tab on one side of the IDE ribbon cable's connector.

To wit:

Left-click on the blue IDE connector in the photo to the upper right.
At the top middle of the connector you will see two ridges.
This is the Locating Lug.

Now left-click on the IDE connector on the motherboard, shown in the photo to the upper right.
(To the right of the blue IDE connector)

Looking at the blue IDE connector on the motherboard, you will note there is a cutout on one side of the connector.
This is a Locating Slot.

Lining the Locating Lug up to the Locating Slot, puts the pins of the IDE ribbon cable's connector, in the correct position for the pinholes in the motherboard's IDE connector.

IF, your ribbon cable's connector does Not have a Locating Lug;

Look at the outside edge of the ribbon cable. You should see a faint Red stripe.
The Red stripe is always next to Pin 1.

Next to the motherboard's IDE connector should be a printout.
It will state PRI 1, (Stands for Primary 1), or IDE 1.
This is for the Harddrive.

[ If you see PRI 2, or SEC, (Secondary), this is for the optical drive.
(CD/DVD drive). Using this information, you will know the other IDE connector on the motherboard is for the Harddrive ]

That printout is always next to where Pin 1 is.
Therefore on the motherboard, the side of the IDE ribbon cable that has a Red stripe, will go next to the printout.

If your harddrive does not have a Locating Slot on it's IDE connector, Pin 1 is always towards the 4-pin IDE power pins.

To wit:

The above is a webpage from, discussing the various power cables used in a PC, and more specifically the standard 4-pin Peripheral power cable.

I linked it to show you a standard 4-pin Peripheral power cable, plugged into an IDE harddrive.

(A Peripheral power cable's connector, has been misnomered as a Molex connector, repeatedly through the years.
This was the name given to the first connector of this design.
It's kind of like referring to an adjustable open-end wrench, as a Crescent wrench )

Here in the photo of the rear view of an IDE harddrive, (Photo to the far left), you will see the 4 power pins.

To the left of the power pins are the Jumper pins.
To the left of the jumper pins, is the IDE interface for the 40-pin IDE ribbon cable.

The Red stripe of the IDE ribbon cable goes towards those 4 power pins.

To be continued in an additional comment.

Sep 19, 2010 | E-Machines eMachines Desktop PC

2 Answers

I would like an internal view of eMachine T4150 to be sure everything is connected correctly

I could not find an internal photo with everything connected but I could find a picture of the motherboard but it was very small. Just make sure your graphics card is inserted fully into AGP slot, processor is clipped down, memory is clipped down, and your hard drives are on one IDE ribbon cable and your rom drives are on the secondary IDE channel. (jumpers are correctly set to Master/Slave). Then make sure the CMOS jumper is set correctly and check the button cell battery for the CMOS clock. That's it

Mar 09, 2010 | Computers & Internet

5 Answers

Adding old hard disk. 20 GB Quantum Fireball Ict, in Dell 9200 PC

if it's old it's probably IDE also known as PATA. it looks like a wide ribbon. There should be a header on the motherboard that looks exactly like the plug on the back of the hard drive. It will be labeled IDE1 probably if you have it. Old motherboards used to have 2 IDE headers, modern ones have one or none. The ribbon will have three plugs--one for the mobo, and then two spaced closer together for the master and the slave. You need to hook it to the appropriate plug (master if it's the only device on the ribbon) and make sure the jumpers on the HD are set properly to make it self-identify as the master. Good luck!

Nov 09, 2009 | Dell Dimension 9200 PC Desktop

1 Answer

Putting the cable in the right spot

Are you trying to find out for your power supply cables or your data/motherboard cables? There are a lot of different kinds of connectors, so make sure you have the right one plugged in the right way. Here are pictures of both:
Your computer may use both the older and newer style plugs and cables.



I hope I have helped and haven't confused you!

Nov 09, 2008 | HP Computers & Internet

1 Answer

I just had a tech do in home replacement on one of my hard drives on my hp 8020. He did not plug the dvd burner back in so the system does not find it. Where does the power plug go on the motherboard. I...

without knowing if it is a PATA or SATA I'll give you a best Guess.


in the lower right corner are 4 connectors...white,yellow,black,blue. These are SATA data transfer connectors. If the dvd burner has a similar connector there should be a cable from here to the burner and a power connector from the power supply to the back of the burner like F in the picture below. Either connector F and M should come from the Power Supply.
if the burner has a connector like F it is SATA, if like M then it is IDE and a flat ribbon cable would come off the IDE connector (BLUE) under the power supply 20 pin connector next to the Ram memory modules.

May 23, 2008 | HP Computers & Internet

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