Question about Gateway 310S (2900621) PC Desktop

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My possibly fried motherboard/power supply

The red light is on the front of the harddrive and there's a red light on one side of the motherboard, and a green light on the other side. any ideas? thanks in advance.

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Well..those are fine. the real issue is whether you have power to the main functions of the m/b. Does the fan on power supply turn?

Posted on Mar 18, 2008

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Cant find my motherboard pin out


http://www.pcmag.com/article2/0,2817,2388344,00.asp?tab=Specs

With all due respect, you have the manual in front of you now

That is unless you started unplugging wires already, and didn't make notes, drawings, or take photos.

Let's use the Asus Essentio CM1630 motherboard for an example.
Couldn't find a CM1730, but that's OK. We'll use this one for a general example,

http://www.ebay.com/itm/OEM-ASUS-ESSENTIO-CM1630-MOTHERBOARD-61-MIBBJ5-01-TESTED-/181007679725?pt=Motherboards&hash=item2a24e600ed

Put your mouse cursor in the middle. Now move your mouse around, using the Zoom In feature.

If this motherboard were mounted in a computer case, it would be turned 90 degrees to the Right.
Bear that in mind.

The front of your computer is the Front Panel.
The area of contact pins on the motherboard, that the Main wires from the Front Panel go to, is the Front Panel header.
Goes by many abbreviated names.
PNL 1, FP1, PANEL1, etc.
(Panel 1, Front Panel 1, Panel 1)

Go to the Top/Right corner of the motherboard photo. To the 6 Blue SATA connectors.
Immediately to the bottom of them, is a white Front Panel header.
Two rows of contact pins sticking up.

You need to make notes, drawings, photo, whatever; of where the wires from the Front Panel, go to each one of those pins.
(Some may not be used)

How to know which wires coming from the Front Panel, are the Power On switch wires, Power On LED light wires, HarDDrive activity LED light wires?

Remove the Front Panel from the computer. If it is Not just a cover, EASE it off just enough to look behind it.

You usually can follow the Harddrive activity LED wires.
Harddrive activity LED is usually AWAY from the Power On switch, and Power On LED light.

There's two wires down.
Now look at where the Power On LED light is. Can you see wires going straight to it?
Two more wires down.

From process of elimination, you now know the last two wires going to the Front Panel, are for the Power On switch.

(The Power On switch, is part of the plastic Power On Button assembly. If you look close at the Power On Button assembly, you can see this)

THAT sir, is the MAIN thing.
I can guide you where the other cables go, as far as power cables, and Harddrive cables, and Optical Drive cables. (CD/DVD drive)

If you have already disconnected the Front Panel wires to Front Panel header on motherboard; you get to play a game(?)

Power Supply plugged into power, use a small flat tipped screwdriver, and touch two pins at a time.
When you get to the two Power On switch wire pins, the Power Supply will come on.

Now it is a process of elimination.
Use an LED with two wires, to find out what the rest of the pins are.
The rest of the contact pins in the Front Panel header.
Grab the HDD LED light, or Power On LED light.
You're getting a new computer case anyway.

Touch two pins, and the LED light blinks?
That's the HarDDrive activity LED light, pins.
LED stays on?
That's the Power On LED light, pins.

Either of those LED's are dim, (When the Harddrive is active, or when the computer is on), switch the wires around.
You have the Positive ( + ) wire mixed up with the Ground ( - ) wire.

Moving on.............
The 6 Blue SATA connectors on the motherboard:
If you look close you will see;
SATA0, SATA1, SATA2, SATA3, SATA4, and SATA5.
Or it may be,
SATA1, SATA2, SATA3, SATA4, SATA5, and SATA6.

The Harddrive plugs into SATA0 or SATA1.
Just depends on what the SATA connector numbering starts with.

The main optical drive, or a single optical drive; plugs into SATA1, or SATA2.
A secondary SATA optical drive will plug into SATA2 or SATA3.

(Look at the SATA numbering above, and you can compare side, by side )

HOWEVER, the beauty of SATA is; that you can plug whatever you want to, in ANY SATA connector on the motherboard; and BIOS will find it.

Plug the Harddrive into SATA 3? No problem.
Plug the optical drive into SATA 0? No problem.
BIOS will find the drive with the Operating System on it.
The Harddrive.
Then BIOS will know the other drive/s are optical drives.

(Make sure in the BIOS Setup utility, that the SATA connector on the motherboard you are using, is Enabled.
Otherwise BIOS will Not see the drive)

What cable from the Harddrive, and optical drive; plugs into those SATA connectors on the motherboard?
A SATA data cable,

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

Note the L-shaped opening in the SATA data cable connector.
Lines up with an L-shape on the motherboard connector.
One example of a SATA connector on the motherboard is shown.
This one is an Open design. Your SATA connectors on the motherboard, will be a Closed design.

Between a SATA data cable connector, and a SATA power cable connector, the SATA power cable connector is larger in width.
SATA data cable connector has 7-pins.
SATA power cable connector has 15-pins,

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

See the SATA harddrive example?
Note the L-shape is pointing DOWN. It is this way EVERY time.
Now you know which way to turn the SATA data cable's connector, when installing. 'Foot' of L-shape goes Down.

More in a Comment.

Mar 14, 2013 | Computers & Internet

1 Answer

Colored ribbons on motherboard and correct ports


Helps if you post the motherboard manufacturer name, and model number.

OR;

Post the computer manufacturer name, and model number.

This is found on the back of a Desktop PC, next to the Windows product key; or up on the side of the computer tower.

Color of the cables ('ribbons') doesn't matter.

WHAT they are does.

NOW.........I can guide you with plugging in power cables FROM the Power Supply, TO motherboard. Also the different peripherals the power cables plug into. (Harddrive, optical drive, fans, etc)

The front of your computer is the Front Panel.
The area of contact pins on the motherboard, that the Main wires from the Front panel go to; is the Front Panel header.
(Power On switch, Power On LED light, Harddrive LED light, Reset switch, etc)

I MAY be able to give you a Front panel header pinout.

We will see about Front USB ports, Front Audio ports, Card Reader, etc.

I CANNOT give you the color code of the wires, coming FROM the Front Panel, TO the Front Panel header.
I CAN give you info on how to find out what each one is, though.


Post in a Comment.

Regards,
joecoolvette

Feb 16, 2013 | Computers & Internet

1 Answer

I am looking forthewireing for a hp pavilion xt919


A) Power cables from Power Supply to motherboard:

1) Product information > Product specifications > HP Pavilion XT919 Desktop PC Product Specifications and What Ships in the Box,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06613&tmp_task=prodinfoCategory&cc=us&dlc=en&lc=en&product=58461

2) According to my sources the motherboard is an Asus CUW-AM,

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=120&prodSeriesId=46171&prodTypeId=12454&prodSeriesId=46171&objectID=bph07170

If this indeed holds to be true, scroll the page down, look at the illustration under the Figure 1: Motherboard layout, heading.
Look at number 22 on the right; ATXPWR

Now scroll down to the motherboard photo.
The white connector with two columns of 10 socket holes, to the right of the black Ram memory slots, is ATXPWR.

Proper name is 20-pin ATX main power cable connector, on the motherboard. This is an example of a 20-pin ATX main power cable, and it's respective motherboard connector,

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

Note in the three photos the Lock on the side of the power cable connector, and the Tab on the side of the motherboard connector.
The Lock operates like a see-saw on a playground.

To remove the power cable the top is squeezed in, and this causes the hooked end of the Lock to come away from the Tab.
When the 20-pin ATX main power cable is deemed to be properly installed tightly to the motherboard, the hooked end of the Lock will be over the Tab.

B) IDE (PATA) harddrive uses a 4-pin standard Peripheral power cable.
So does the Optical Drive/s,

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

Note the rounded corners when plugging it in.
{Power cable has been misnomered as a 'Molex' power cable. Molex came up with the connector design. The name stuck. Kind of like calling an adjustable open-end wrench a Crescent wrench }

C) Floppy drives and card readers use a 4-pin small Peripheral power cable,

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

D) Number 6 -> SYS_FAN, is where the Processor fan plugs in.
SYS_FAN stands for System Fan. A computer case fan. The illustration is wrong.

E) Number 21 is PS_FAN.
That to me stands for Power Supply Fan. Another misnomer. The Power Supply has it's own fan, and doesn't need power from the motherboard for it.
I'll bet this is where a System Fan, or computer case fan, would connect.

F) Number 29 points to the Primary IDE connector on the motherboard.
This is where the 40-pin IDE flat ribbon cable, plugs in for the Harddrive.

Number 24, Secondary IDE, is where the Optical Drive's, IDE flat ribbon cable plugs in.

Note*
The rectangular connectors for the IDE flat ribbon cables, has a 'bump', or protrusion, on the outside edge towards the middle,

http://en.wikipedia.org/wiki/File:PATA-cable.jpg

In this photo it is at the top/middle. There are different styles. Square block, or the two piece design shown.
These bumps, or protrusions line up with a cutout.

A cutout on the motherboard connector, or a cutout on the circuit boards for the harddrive, and optical drive.

IF there is no bump, or protrusion;
There is a faint red strip on one side of the IDE (PATA) flat ribbon cable.

The red strip denotes which side Number 1 wire is on. Number 1 wire in the cable, for number 1 pin in it's connector/s.

http://pinouts.ru/DiskCables/IDE_pinout.shtml

Here you can see by the pinout above, that for the black Primary IDE connector, and the blue Secondary IDE connector, Number 1 pin is at the Top.
Red stripe on edge of IDE cable will be at the top, when the cable is attached.

When plugging into a harddrive, or optical drive, Number 1 pin ALWAYS goes toward the power cable.
Towards the 4-pin standard Peripheral power cable.
Red stripe will be towards 4-pin standard Peripheral power cable.

H) Number 14 CD_IN is where the audio cable from the MAIN optical drive plugs into. If you have two optical drives only the main, or Primary optical drive audio cable plugs into the motherboard.

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

Under the photo of the motherboard, the pinout for the Front Panel header is shown, though not very legible.
In the illustration the Front Panel header is Number 30 - Panel.

Looking at the pinout, and looking at the actual Front Panel header on the motherboard photo, it looks as though they have the pinout upside down, in relation to how it actually is.

Note in the motherboard photo, the Front Panel header is shown with 5 pins across the Top, then a space, then 4 more pins.
The Bottom row is 10 pins in a row.

In the Front Panel header pinout, they show 10 pins going across the Top. 4 pins going across the bottom, a space, then 5 pins.

Upside down.

I think it should be this way,

Top Row starting on the Left side going towards the Right;
Pins 2, 4, 6, 8, 10, No Pin, 14, 16, 18, and 20.

Bottom Row starting on the Left side going towards the Right;
Pins 1, 3, 5, 7, 9, 11, 13, 15, 17, and 19.

1) Pins 2 and 4 are for a Reset switch, IF a Reset switch is used.

2) Pins 6, 8, and 10 are for the Power On LED. (Light)
This is for a computer that has 'Turbo'
Dual light Power On LED. May have Green and Yellow lights.

Green for 'Turbo', and Yellow for Normal.
Bunch of hooey, really.

'Turbo' mode is the computer operating in a normal mode, and Normal mode really is the computer slowed down.

Pin 10 is for the Negative ( - ) wire.
Pin 6 and Pin 8 are the Positive ( + ) wires. One for the Green side of the Power On LED, one for the Yellow side of the Power On LED.

3) No Pin 12

4) Pins 14, and 16 are for the HarDDrive activity LED. (Light)
Pin 14 for the Positive ( + ) wire.
If the HDD LED is dim when the Harddrive is active, switch the wires around.

5) Pins 18 and 20 are for the Power On switch.

6) Pins 1, 3, 5 and 7 are for an internal speaker. Used to hear BIOS Beep Codes.
Pin 3 is for the Negative wire ( - ), and Pin 7 is for the Positive ( + ) wire.

7) Pins 9 and 11 N/C. Not Connected. (External SMI lead)

8) Pins 13 and 15 are for a Keylock switch.
Some computers have a Keylock. Unlocked the computer will come on.
I -> believe, Not connecting anything to these two pins, is like having the Keylock in the unlocked position.
May be wrong. May have to have a jumper wire across these two pins for the computer to work.

9) Pins 17 and 19 are for a Message LED
(Sleep/Standby)

HOWEVER, the best method IMHO is to use an LED light, and touch two pins at a time, to see which ones are for the Power On switch.
When the computer comes on, (Power Supply), then you know which pins are for the Power On switch.

Computer running, do not touch those two pins again, and check the rest of the pins.
Computer turns off, and starts again? Restart switch
LED light blinks? Harddrive activity LED
LED light stays on steady? Power On LED.

Finding which two pins are for the Power On switch, also helps tell you where the rest of the pins are, by looking at the pinout on the HP Support page.

http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=bph05159

Scroll down to Figure 4: Front panel connectors
Same Front Panel header used for this TriGem (Cognac) motherboard.
Clearer though.

For additional questions please post in a Comment.

Regards,
joecoolvette

Oct 02, 2012 | HP Computers & Internet

1 Answer

Missing power pack some ribbons


Rut Ro!

!O_O!

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.

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

http://en.wikipedia.org/wiki/Parallel_ATA

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

http://en.wikipedia.org/wiki/File:PATA-cable.jpg

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.

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

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.

http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&_trksid=p4340.l2557&item=320584071749&nma=true&rt=nc&si=3aRaG4yZHczJd6Q3wXW2IIvaBys%253D&orig_cvip=true&rt=nc

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,

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

(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,

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

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,

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

(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,

http://support.gateway.com/s/MOTHERBD/INTEL/2519530/2519530mv.shtml

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,

http://www.ebay.com/itm/Gateway-E-3600-4000-Power-Supply-6500582-NPS-160CB-Test-/270707982390?pt=LH_DefaultDomain_0&hash=item3f07740036

Gateway part number 6500704,

http://support.gateway.com/s/POWER/6500704/6500704nv.shtml

(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,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1389575&CatId=1078

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

For additional questions please post in a Comment.

Regards,
joecoolvette

Sep 01, 2012 | Gateway E-4000 PC Desktop

1 Answer

Proper installation of tower wires


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

Nov 17, 2011 | Gateway 505GR PC Desktop

1 Answer

We took our case apart to clean the fans. unfortunately once we had them clean and put back on the on-off switch would not come on it will not power up, the fan is going the green light on the back is on.....


1) Remove the Ram Memory module/s, and reinstall them.

It may look as though they are seated, by they may not be. All it takes is a slight bump.

I would also advise cleaning the contact pins while the ram memory module/s are out.
Use a pencil eraser.

{Note*
Computer unplugged from power, observe Anti-Static Precautions.

Anti-Static Precautions:

Your body carries Static electricity.
Static WILL fry out (Short Circuit) the hardware components inside a computer.
You won't see it or feel it.

Relieve your body of Static Before you reach inside your computer. (And before you remove any new hardware parts from their protective anti-static cartons)
Computer on a table, computer unplugged from power, computer case open.
TOUCH the metal frame of the open computer case to relieve your body of Static.

Should you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.


If you are not using a solid eraser, and one on the end of a pencil, refrain from letting the metal band touch the contact pins.

The Presario SR1403wm desktop computer supports DDR Sdram ram memory modules.
There are 184 contact pins. 92 on each side.

Rub the eraser up, and down on each contact pin, both sides of the ram memory module.
Doesn't take as long as it sounds.
Just go up, and down a couple of times, you don't need to scrub the contacts with the eraser.

It may look as though you have done nothing at all once you're finished. The gold plated contact pins will not be shiny.
I assure you that you have.
Doesn't take much corrosion to make a bad contact surface.

http://en.wikipedia.org/wiki/File:Generic_DDR_Memory_%28Xytram%29.jpg

(You can click on the photo to enlarge)



2) Perhaps one of the power cables wasn't attached to the motherboard.
Here is an illustration and photo of the Presario Sr1403wm motherboard,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00257657&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&site=null&lang=en&key=null&product=501310

Scroll down towards the bottom of the page.

In the illustration where it states the chipset SiS 760 in a rectangular outline, look to the right of it.
There is a small square outline with > ATX12V1 above it.

This is for the 4-pin ATX +12 Volt power cable.

Example of a typical 4-pin ATX +12 Volt power cable, and the matching connector on the motherboard,

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

Be sure this power cable has been attached.

To the right of the motherboard connector ATX12V1 is the main power cable connector
ATXPWR1

On the motherboard photo look all the way to the right side, and in the middle.
The whitish connector that has 2 columns of 10 socket holes is the ATXPWR1 connector.

This is an example of a typical 20-pin ATX main power cable, and it's matching connector on the motherboard,

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

Both connectors have a Lock on the side of the male connector. The connector that has the wires in it.
The female connector on the motherboard has a tab on the side.

To ensure that the male connector is seated tightly into the motherboard connector, the Lock's hooked end must be over the tab on the motherboard connector.

If both of these power cables are not fully seated, the computer will not turn on.



3) Harddrive power cable:

The harddrive used is a SATA harddrive.

This is an example of a typical SATA power cable,

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

Make sure this power cable is seated well, into the SATA harddrive.

[ Note*
The SATA power cable has 15 pins. The SATA data cable has 7 pins.

IF, your SATA harddrive has a provision for a SATA power cable, AND a 4-pin standard Peripheral power cable, ONLY USE the SATA power cable.
Using both power cables will burn up the SATA harddrive.

Some SATA drives will operate for a while with both cables plugged in. Then they eventually burn up.

Example of a typical 4-pin standard Peripheral power cable,

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

(Shown plugged into an IDE {PATA} harddrive)

With all power cables attached, and seated well, plus the ram memory module/s, make sure the Front Panel cable is connected in the proper place on the Front Panel header.

In the illustration F_Panel 1 is the Front Panel header.

{The plastic front of your computer is the Front Panel.
The area of pins in the connector on the motherboard, that the Front Panel cable connects to, is the Front Panel header.
This particular Front Panel cable is for the Power On switch, HarDDrive Activity LED light, and Power On LED
Not the cables for the USB ports, or Firewire port/s in the Front Panel)

If everything checks out above, then either the Power On switch is bad, or the Power Supply is bad.
Happens. A power supply can go out all at once.
Weak voltage power rail.

I can guide you with a simple test to see if the problem is the Power On switch, or the Power Supply.


If you have further questions please post in a Comment.
Would appreciate hearing how this comes out.

Regards,
joecoolvette

Dec 10, 2010 | Compaq Presario sr1403wm AMD Sempron 3000+...

3 Answers

Dell computer will not turn on.


Somewhere on in the tower there should be a sheet representing what formations of lights mean which...
Maybe you got bad RAM?
Maybe your Harddrive is dead?
Maybe your motherboard is fried. I should tell you.
Good luck.

Jul 14, 2009 | Dell Dimension 5100 (D51L1) PC Desktop

2 Answers

Dimension 5100 will not turn on


Could be a bad motherboard? If your power supply was really fried it could have also fried your motherboard.

Mar 25, 2009 | Dell Dimension 5100 (D51L1) PC Desktop

1 Answer

No Power


hi Kmantapeman,
yes it could be the motherboard problem but what I would like to test here first is remove some component one-by-one and try to turn your notebook on and see...(see mean any noise or light come up)
1.remove battery
2.remove harddrive
3.remove memory
4.if possible remove cdrom
5.anymore incase you have
if nothing work then its a motherboard problem.
goodluck,takecare.

May 01, 2008 | IBM ThinkPad T21 Notebook

1 Answer

Compaq Presario 4400us


Either the new power supply you purchased is not functioning correctly. But, assuming it is now that you are getting some form of power to your PC, it is very likely the motherboard. Whatever fried your old power supply (or it could have just been the power supply itself) most likely fried your motherboard in the process. Probably not the CPU since the MB can't even post.

Jun 21, 2007 | Compaq (388746-001)...

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