Where can I find the front panel I/O switch that goes from behind the power switch to the motherboard

According to Gateway Support, the Gateway 505GR desktop computer uses an Intel (Ausberg) 915G motherboard,

http://support.gateway.com/s/PC/R/3724/3724iv.shtml

Intel (Ausberg) 915G motherboard,

http://www.ascendtech.us/itemdesc.asp?ic=MB4GWAUGSBURG

Scroll down to the photo with the sections marked in red.

In the top link, looking at the motherboard with the computer case open, the USB and Firewire (1394a) cables, can be seen attached to the motherboard near the letters D, E, and F.

In F that red cable is a SATA cable. One end attaches to the back of the SATA harddrive, (The angled end), and the other end of the SATA cable attaches to one of those SATA headers on the motherboard.
(SATA header = SATA connector on motherboard)

Preferred SATA header for the Harddrive is SATA 1.
DOESN'T matter though. That's the beauty of SATA. You can plug the SATA data cable into ANY SATA header on the motherboard, and BIOS will find the harddrive.


In the second link, looking at the motherboard photo shown, and comparing it to the view of the motherboard as mounted in the computer case, the Front Panel header is at the very Bottom Right.

Two rows of pins in a White rectangular shaped header,

http://www.ascendtech.us/itemdesc.asp?ic=MB4GWAUGSBURG

(S points to Front Panel header)

[ The plastic front of a desktop computer is the Front Panel.
The area of pins on the motherboard, that the Front Panel wires go to, is the Front Panel header ]

A) Top row has Even numbered pins
B) Bottom row has Odd numbered pins.

http://www.intel.com/support/motherboards/desktop/sb/CS-009016.htm

1) Power LED = Power On LED light
2) Hard Drive Activity LED = LED light that flashes (Usually red in color) when your harddrive is active. Being used.
3) Reset switch = Reset Button. The Reset switch is behind the Reset button. (IF the computer uses a Reset switch)
4) Power Switch = Power On switch
5) Forget about Pin 9. That's for 5 Volts DC - Out. Used by factory.

Which wires coming out of the Front Panel, are the Power On wires, Harddrive LED light wires, Power On switch wires, etc.?

Remove the Front Panel, and trace where the wires end.

IF, the wires already installed coming from the motherboard to the Front Panel, are Too short, you should make notes before you remove them from the motherboard.

Note what color pair of twisted wires, went to where, in the Front Panel.
Compare to the chart of the Front Panel header given above.
(IF any wires are still connected to the Front Panel header on the motherboard)

Once the Front Panel is removed, it's usually pretty easy to trace the two wires up to the Power On switch.
Same for the Power On LED light.
Again, same for the HarDDrive activity LED light.

The SATA harddrive requires a DATA cable, and a SATA power cable.

The connector for a Data cable has 7 contact pins. It is the shorter connector.

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

The connector can be at a 90 degree angle as shown, or a straight connector.
IF the data cable has an angled connector, it plugs into the Harddrive.
Straight connector goes to the motherboard.

The connector for a SATA power cable has 15 contact pins. It is the longer connector,

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

Note the L shape of the connectors for the SATA data cable, and SATA power cable.

Also;
This is a 4-pin standard Peripheral power cable. Commonly misnomered as a 'Molex' power cable,

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

IF, the SATA harddrive has a provision for a SATA power cable, AND a 4-pin standard Peripheral power cable, ONLY use just the SATA power cable.

Using both power cables will burn up the harddrive.
May not happen immediately in some cases, but WILL eventually happen.

For additional questions please post in a Comment.

Regards,
joecoolvette

I don't know what you are asking for exactly, so I'll through out possibilities.

A) The Power On switch located inside the plastic Power On button assembly is a Momentary Contact Switch.
It is an ATX power on switch.

This is a generic example of a Power On switch that fits Many models,

http://www.amazon.com/Power-Motherboard-Cable-Switch-Button/dp/B00345WH4A/ref=pd_cp_e_2

B) The plastic front of the computer is a Front Panel.
The area of pins on the motherboard, that the cables (Wires) from the Front Panel go to, is the Front Panel header.

Intel Support > Intel D865GLC motherboard > Product Guide,

To find out if the problem is the Power On switch, or the Power Supply, perform the simple test using a jumper wire.
If you do not know how to perform this test, and wish to, post in a Comment.

Regards,
joecoolvette

I have seen another Presario desktop with this problem, and it was dust in the front panel jamming the switch on. Pushing the switch turned the machine on, but because it stayed on, after 4-5 seconds the PC shut down again.

I had to remove the front panel and clean out all the dust, then lubricate the switch movement.

The Power On switch is located inside the plastic Power On button assembly.

It is a Momentary Contact Switch, and is named an ATX power on switch.
This ATX Power On switch I have found fits many computers,

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

The plastic front panel of a desktop computer is the Front Panel.
The pin area on the motherboard, that the cables (Wires) from the Front Panel connect to, is the Front Panel header.

Tell me the manufacturer name, and Model Number of the computer, or tell me the manufacturer name, and Model Number of the motherboard, and let me see if I can find a Pinout for it's Front Panel header.
(What pins the cables connect to)
Post in a Comment.

The eMachines T3828 Desktop PC uses an Intel D845GVSR motherboard.

1) Socket 478 processor socket

2) Comes with an Intel Celeron D 335 processor that uses a Socket 478 processor socket.

http://en.wikipedia.org/wiki/List_of_Intel_Celeron_microprocessors#.22Prescott-256.22_.2890_nm.29

Celeron D 335 / part number RK80546RE072256

3) The motherboard chipset is an Intel 845GV
[The Northbridge chip is an Intel 82845GV, and the Southbridge chip is an Intel 82801DB { ICH4}
Intel 82845GV and Intel 82810DB are the part numbers on the chips]

http://en.wikipedia.org/wiki/List_of_intel_chipsets#Pentium_4_Chipsets


Here is the motherboard manual you requested,

http://downloadcenter.intel.com/Detail_Desc.aspx?lang=eng&DwnldID=15210

On this page click on the top file>
D845GVSR_ProductGuide_English.pdf
(Date 07/01/2003)
Go to the right and click on > Download

On the next page left-click on the empty circle to the left of>
I accept the terms in the license agreement

The file will automatically start downloading
Let the file download all the way before looking through it.

Connecting Internal Headers - Page 31 in the PDF file page number box at the top

You want C - Front Panel

The plastic front of your computer is the Front Panel
Cables (Wires) coming from the Front Panel go to the Front Panel header on the motherboard

Connecting the Front Panel is shown on Page 32

Processor to the Top, Ram Memory slots to the Right, the Front Panel header is at the Bottom Right. It is right along the bottom edge of the motherboard.

There are 4 pins across the Top
There are 5 pins across the Bottom
The Pins are numbered.

Starting on the Left side of the motherboard going towards the Right,
the Top row of pins are numbered 2, 4, 6, and 8

Starting on the Left side of the motherboard going towards the Right,
the Bottom row of pins are numbered 1, 3, 5, 7, and 9

A) Pins 1 and 3 are for the HarDDrive Activity LED light.
Pin 1 goes to the Positive ( + ) wire

Pin 2 goes to the Ground wire ( - )
If the LED is dim after installing switch the two wires around


B) Pins 5 and 7 are for the Reset switch. IF used. (Reset button)

C) Pin 9 is for the 5 Volts DC

D) Pins 2 and 4 are for the Power On LED light

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

Page 34 shows you where the power cables from the Power Supply go to the motherboard.
Connecting Hardware Control and Power Cables

D shows you where the 20-pin ATX main power cable goes.
Typical 20-pin ATX main power cable,

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

A shows you where the 4-pin +12 Volt power cable goes, (Power for the Processor),
Typical 4-pin +12 Volt power cable,

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

B is where a Chassis Fan connects to. (Computer case fan)

C is where the Processor Fan connects to

E is for another Chassis Fan

If you have further questions please post in a Comment.
Sorry it took so long to reply, I just saw this problem.
Regards,
joecoolvette

micha219, the eMachines W2925 desktop computer uses an FIC motherboard.
First International Computer { Inc }
The Model Number of the FIC motherboard is VC37.
FIC VC37.

Disregard the following if you are aware:
The plastic front of your computer is the Front Panel.
The area on the Motherboard that the cables (Wires) from the Front Panel connect to, is the Front Panel header.

Processor to the Top, Ram Memory slots to the Right, the Front panel header is in the Bottom Right corner.

It is a rectangular shape with two columns of pins.
The length goes up, and down on the motherboard.

The pins on the Right side of the Front Panel header are numbered Odd.
The pins on the Left side of the Front Panel header are numbered Even.

There are 4 pins on the Left side.
There are 5 pins on the Right side.

Starting at the Bottom on the Right side going Up;
Pins 1, 3, 5, 7, and 9.

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

A) Pins 2 and 4 are for the Power On LED light.
(If after connecting the LED light is dim, reverse the wires)

B) Pins 6 and 8 are for the Power On switch. (Power On button)

C) Pins 1 and 3 are for the HarDDrive Activity LED light.

D) Pins 5 and 7 are for the Reset switch. (Reset button. IF used)

Pin 9 is NC. Not connected

1) Unplug computer from power.
2) Observe anti-static precautions.

Your body carries Static electricity. Static will fry out (Short Circuit) the hardware components inside of a computer.

Touch the metal frame of the open computer case, to relieve your body of static. (Should you get up, and leave in the middle of working on your computer, upon your return Touch the metal frame again )

Alternatively you can purchase an ESD wrist strap, (Electro Static Discharge), and use it. Average cost is around $6. The alligator clip is attached to the metal frame of the open computer case.

3) Identify each cable (Wire) that comes from the Front Panel, and goes to the motherboard.
Make notes, and a sketch of what pins on the motherboard those wires go to.

You may be just replacing the Power On switch, but if any of the other Front Panel cables are accidentally disconnected, from the Front Panel header on the motherboard, you won't have information as to where they go unless you make notes, and a sketch.

[The Front Panel is the plastic panel on the front of your computer, that has the Power On button, Power On light, HarDDrive activity light, etc. The Front Panel header, is the connector, or the pins on the motherboard, where the Front Panel wires go ]

This is HP Support, and the main page for the Pavilion a1600n Desktop PC,

http://h10025.www1.hp.com/ewfrf/wc/product?product=3245022&lc=en&cc=us&dlc=en&submit.y=7&submit.x=10&lang=en&cc=us

To see the Front Panel header, there is a photo of the motherboard, and an illustration. On the above main page click on - Product information
Then click on- Product specifications, and finally on - Motherboard specifications A8M2N- LA (NodusM3)

Scroll down the page to the motherboard illustration.
In the very bottom right corner of the motherboard, you will see the Front Panel header, F_Panel 1

The Front Panel will have to be removed to access the Power On switch. This is the time that the cables from the Front Panel, can be easily accidentally disconnected from the Front Panel header on the motherboard.

How to open the computer case, and how to remove the Front Panel, can be found in the Upgrading and Servicing Guide.

On the main page click on Manuals.
Now click on - Upgrading and Servicing Guide - 2.86M. This is a PDF file download. Takes a few seconds to see the first page.

The Power On switch is located inside of the plastic Power On button. The plastic tabs of the button are gently eased to the outside, and the Power On switch is slipped out.

The plastic may have become brittle over time due to age, and heat from inside the computer.
I find using a hair dryer set to low heat, and moving back, and forth across the plastic, helps soften the plastic of the Power On button, enough to remove the PS_ON switch more easily.

This Power On switch should be a good replacement,

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

ebay.com ;)
or you can try compusa.com
if that doesnt work just call 1-800-711-2884 HP tech support number and ask them ;)

try there http://www.techimo.com/forum/attachments/motherboards/16487d1152479512-front-panel-power-pin-config-asus.jpg maybe it helps you

if you are a practical person, the power on switch is the crudest item ever on a pc. The switch simply completes a circuit. If you look on you motherboard at the front panel connector cables, you will see the two that go to the power on switch. remove them, flash a small screw driver across the terminals and it will come to life