Question about Dell Dimension E520 PC Desktop

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My number 2 light on the front of the tower is not lighting and the computer is not starting

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Check your cable coming from plug to pc, and check the power supply box of your pc, one out of them will be faulty because current is not coming to your computer thats y no activity or sound is coming

Posted on Sep 13, 2010

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Posted on Jan 02, 2017

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No video on my optiplex 330 and lights 2 and 4 are lit on the front


You could try to connect a different, working, monitor first. Should this not work, then you can be fairly sure that your monitor is good, but the problem lies either with your motherboard or just the integrated video circuitry on it. That being said, there's usually an option of installing an auxiliary video card on the motherboard expansion slots - preferably an AGP or PCI-X16 graphics card. Should you care to provide me the service code number for the tower, I can check with Dell to see which type card can be installed on this motherboard. Thanks!

Sep 16, 2014 | Dell OptiPlex 330 Desktop Desktop Computer...

1 Answer

Case wiring diagram for intel d845ebt


Jay,
Intel Support > Intel D845EBT Desktop Motherboard > Product Specifications > Technical Product Specification,

http://www.intel.com/support/motherboards/desktop/d845ebt/sb/cs-008791.htm

On this page left-click on the blue - A92200001.PDF
It may take up to 30 seconds before the first page comes up.

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
At the top in the header is the page number box, to the right of the Down Arrow.

IF you know the page you want you can go page, by page, until you arrive at the page you want,
Or,

1) Put your mouse cursor in the page number box.
Left-click ONCE.
2) Type the page number
3) Press the Enter key

Go to Page 14.
1.1.3 Board Layout

The plastic front of your computer tower is the Front Panel.
The area of pins (Contact pins) on the motherboard, that the wires (Cables) go to, is the Front Panel header.

P on the Board Layout points to the Front Panel header.
(Front Panel connector)

Note that the illustration of the motherboard layout, is turned 90 degrees to the Right, in relation to how it actually sits in your computer case.

If you turn the motherboard layout illustration 90 degrees to the left, as it should be, the Front Panel header has two rows of pins.
Go to Page 69.

If the view is not very clear for you, enlarge it. Click on the + sign at the top, to enlarge the view. (Zoom In icon)
E points to the Front Panel header, and it's pinout.

Note that with the motherboard sitting in your computer case, the pins are numbered ODD on the top row, and EVEN on the bottom row.

The numbering starts from RIGHT to LEFT.
Top row of pins from Right to Left;
Pins 1, 3, 5, 7, and 9.

Bottom row from Right to Left;
Pins 2, 4, 6, and 8. There is NO pin 10.

Go to Page 71.
2.8.3.1 Front Panel Connector

A) Pins 1 and 3 are for the HarDDrive activity LED light.
Pin 1 is for the Positive ( + ) wire.
If the HDD LED light is dim when operating, 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 used. This is for the factory.

D) Pins 2 and 4 are for the Power On LED light.
Pin 2 is for the Positive ( + ) wire.
If the Power On LED light 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.
N/C
Not Connected

Regards,
joecoolvette

Jun 09, 2012 | Intel Computers & Internet

2 Answers

Power front panel conectors on acer 915m08


This Foxconn 915M08-G-8KS motherboard made for Acer Veriton desktop computers?

http://www.sella.co.nz/general/computers/components/motherboards/other-motherboards/b1jnj6/

Do not know what the Front Panel header pinout is.

(Front plastic part of computer tower is the Front Panel.
Area of contact pins on the motherboard, that the wires (Cables) from the Front Panel connect to, is the Front Panel header )

CAN see by clicking on - View full size image - that the Front Panel header is to the Top Left corner of the motherboard, by the CMOS battery.
(View of mobo is upside down, in relation to how it actually sits in the computer tower case)

Shows me it is just the normal two rows of contact pins used in a LOT of desktop computer mobo's. (MOtherBOard)

If it were I, I would use one of the LED lights connected to two wires, and touch across each two sets of pins.

Looking at the motherboard as it sits in the computer case, there is a row of pins on Top, and a row of pins on Bottom.

In your mind start at the LEFT side of the pins at the TOP.
Number them from Left to Right.
Example, Pins 1, 3, 5, 7, and 9.

Now number the pins on the Bottom, from Left to Right,
Pins 2, 4, 6, 8, and 10.

Computer plugged into power, touch the two wires of the LED light, to Pins 1 and 2.
Computer doesn't start? (Power Supply turns on)
Go to the next set of pins.

I am willing to bet Pins 5 and 6 turn the Power Supply on.
No? Keep experimenting.

What will happen if you touch the WRONG pins?
N-O-T-H-I-N-G
You will NOT hurt the motherboard.

When you get to the correct pins, the Power Supply will turn on.
These pins are for the Power On switch.

Now go back through the pins with the Power Supply on, but DO NOT touch the pins that turned the Power Supply on.

When the LED light STAYS on, you have the pins for the Power On LED light.

If the LED light BLINKS, you have the HarDDrive activity LED light.

If Windows starts to load, and you touch the Restart switch pins, the computer will restart over again, and Windows will load again.

(IF this computer has a Restart switch. I do NOT use one, even for the older computers. Just press CTRL, ALT, and DELete keys at the SAME TIME, to restart the computer, or use the Task Manager option)

One pin left all by itself? That is for 5 Volts, and only used by the factory. Leave it unconnected.

There may also be a blank spot on the Front Panel header, where it looks like a pin is missing. This is the KEY pin, and is not used.
It is just to orient where the other pins are.

Worried about getting shocked?
There may be a small spark, as you connect the wires, I will gramnt you that.
But the voltage is 5 VOLTS DC.
In comparison two D cell flashlight batteries produce 3 VOLTS DC.

The harmful AC voltage is contained in the metal enclosure, of the Power Supply. Can't get you unless you pour water on it close up, or stick a metal rod through one of the ventilation holes, in the Power Supply enclosure.

Regards,
joecoolvette

By the by. You could be a lot of people's hero, if you came back, and posted the pins for what they do. Post in a Comment.

Jun 08, 2012 | Acer MB.V1509.002 VERITON 7700G VT7700G...

1 Answer

Our check engine light just came on today and we took it to O'Reilly's they tested it and said that we are misfiring on cylinder 2. Where is cylinder 2 located and will replacing the plugs and wires fix...


Cylinder number 2 is on the front of the engine on the passenger side. If there the original wires than they will be labeled 1-6. Also if you look on the coil pack the individual towers will also be labeled with a cylinder number.

A new set of plugs and wires is a good start.

Jan 10, 2011 | 2001 Dodge Caravan

1 Answer

Need wiring connection diagram for Power Switch to Motherboard for EMachine W2925 model. Wires were disconected accidentally while cleaning inside of tower


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

Oct 18, 2010 | E-Machines eMachines Desktop PC

1 Answer

MY DELL IS OPTIPLEX 760SFF, IT NOT BOOTING, SHOWING AMBER LIGHT ON THE POWER BUTTON WHEN PLUG TO POWER.


Hi,
If this the light is solid amber in the front of the computer.Try doing the following steps

1. Disconnect the power cable from the back of the system tower. Press the power button on the tower 30 seconds.
2. Reconnect the power cable to the back of the system tower and power it back on.

If the amber light is on the monitor power button and the tower power button is off or blinking amber it could mean that it is a bad power supply.


Thnaks for using fixya
Proton

Aug 10, 2010 | Computers & Internet

1 Answer

I need a spark plug wireing diagram for a 1997 ford f-150 4.6 liter v-8?


Sitting in the drivers seat, drivers side is the Left side, passenger side is the Right side.

From the Front of the engine going towards the rear,

Right side: 1, 2, 3, and 4

Left side: 5, 6, 7, and 8.


Front of the engine, RIGHT side coil pack. Two spark plug towers in Front.
Left side is Number 5. Right side is Number 1

Front of the engine, RIGHT side coil pack. Two spark plug towers in Rear.
Left side is Number 3. Right side is Number 6.

Front of the engine, LEFT side coil pack. Two spark plug towers in Front.
Left side is Number 8. Right side is Number 4.

Front of the engine, LEFT side coil pack. Two spark plug towers in Rear.
Left side is Number 2. Right side is Number 7.

Nov 14, 2009 | 1997 Ford F150 Regular Cab

1 Answer

Need spark plug wiring sequence, 1985 toyota corolla 1600 2 door hatchback, rear wheel drive


With the 2T-C, 3T-C, and 3K-C engines the Firing Order is 1-3-4-2
The distributor rotates ->Clockwise. (The rotor actually)

Number 1 spark plug tower on the distributor cap, faces directly towards the engine. Number 2 faces the back of the engine, Number 4 faces the front of the engine, Number 3 is to the outside away from the engine.

Number 1 spark plug is at the front of the engine. 1-2-3-4

With the 4A-C engine, and other A-Series, the Firing Order is 1-3-4-2
The distributor rotates ->CounterClockwise.

Number 1 spark plug tower is towards the engine, and faces the back of the engine. Number 3 spark plug tower is away from the engine, and faces the back of the engine.
Number 2 spark plug tower is towards the engine, and faces the front.
Number 3 spark plug tower is away from the engine, and faces the front.

Aug 16, 2009 | 1985 Toyota Corolla 2 Door

1 Answer

No video


Try to check the light on the monitor. If it is amber, then check the video cable both from the back of the monitor and the tower. Try a known-good monitor. Check the diagnostic LEDS of the tower. There are four of them in the front panel. When the computer starts normally, the lights flash. After the computer starts, all four lights display solid green. If the computer malfunctions, the color and sequence of the lights identify the problem. If you have a solid green light on the tower, no beeps heard and no video, check the LEDS. If you get 2-4 light, a possible graphics card failure has occurred. If the computer has an external graphics card, open the tower, remove the card and put it back in. If still persist, try a known-good card. If it still does not resolve the problem, try reseating the memory cards. Remove and put it back in. If still no go. Then it's a motherboard problem.

Sep 16, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

1 Answer

No Power / Start-up


if the power button on the front of the tower has no indications, then you most likely have a failure of the power supply.

Open the tower, and inspect for burnt wires. If you find no burnt wires, remove all PCI expansion card and all external connections, then connect the power cord and try to turn on. If no power, then you will most likely need to replace the power supply.

It is the least expensive part to replace on a no power situation. If replacing the power supply fails, then the front IO panel (Power button board) is next, then the motherboard is the 3rd most likely part that may have failed.

May 17, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

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