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No power to harddrive and 3.5 floppy drive and DVD drive or main mother board except for 2 of the 5 volts supply.

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Check the voltages of a 4 pin connector with a multimeter.
The 5 volt will be on the red and black wires.
The 12 volts will be on the yellow and black wires.
If the voltagws are not present or wrong then the power supply is faulty and needs to be replaced.
When you replace the switch mode power supply, make sure the total wattage of the new power supply is equal to or greater than the old power supply.

Posted on May 19, 2011

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1 Answer

DX4820 power supply


To my knowledge, the Power Supply used is just the common ATX form factor design.

Approximately 6 Inches Wide, 5-1/2 Inches Long, and 3-1/2 Inches Tall.

Needs these power cables;

A) 24-pin ATX main power cable
Newer power supply's come with a 20 + 4-pin ATX main power cable.

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20plus4

That is so the power supply can be used on a motherboard, that needs a 20-pin, OR a 24-pin ATX main power cable.

B) 4-pin ATX +12 Volt power cable.
Often referred to as an ATX12V power cable.

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

[Note color of power cable connectors does NOT matter ]

Note the Lock on the side of the power cable's connector, and matching Tab on the motherboard connector.
The 20 + 4-pin ATX main power cable, and matching motherboard connector; has this type of Lock/Tab also.


C) Needs at least 2 SATA power cables.
The Harddrive is a SATA unit, and I believe the optical drive (CD/DVD drive) is too.

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

Often has a Lock on the connector. Press to release when installing, or removing.

D) Should have at least two 4-pin (Standard) Peripheral power cables.
Misnomered as 'Molex',

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

E) Needs one 4-pin (Small) Peripheral power cable, for the Card Reader.

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

Also needs 300 Watts.
A Power Supply like this one would work,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=899123&CatId=1079

For additional questions please post in a Comment.
Regards,
joecoolvette

Apr 02, 2013 | Gateway mb.u1909.002 - Dx4820-05h System...

1 Answer

Gateway dx4822-01 power supply


Gateway DX4822 Desktop PC,

http://support.gateway.com/us/en/product/default.aspx?tab=1&modelId=2291

Just a regular Ol' ATX power supply. Rated at a maximum wattage rating of 300 to 525 Watts. Two different power supply options offered.

Power Supply case size is;
6 Inches Wide, by 5-1/2 Inches Long, by 3-1/4 Inches Tall. (152.4mm Wide, by 139.7mm Long, by 82.55mm Tall )

Has the following power cables;

A) 1 -> 24-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

[ NOTE* Color of connector on power cable, OR motherboard, does NOT matter.

Proper connector, proper power cable, DOES matter; connector color does not matter ]

B) 1 -> 4-pin ATX +12 Volt power cable,

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

{ Power to the motherboard, and all components connected to it }

C) 2 or more -> SATA power cables,

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

{ Power to a SATA harddrive, and/or power to SATA optical drive/s.
(CD/DVD drive) Or power for an upgrade in the future, for a SATA optical drive }

D) 3 or more -> Standard 4-pin Peripheral power cables,

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

{ Power for an IDE (PATA) harddrive, or drives. Also power for IDE (PATA) optical drive/s. Plus power in some instances, for computer case fans }

E) Two or more Small 4-pin Peripheral power cables,

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

{ Listed as a Floppy Drive power cable. Back in the day when the article was written, such was true.
It can still be used for a Floppy Drive, but is more used now as a power cable for a;
1) Card Reader.
2) Computer case fans (IF needed }

It's name is Small 4-pin Peripheral power cable. It is smaller than it's larger cousin, the Standard 4-pin Peripheral power cable.

Also has smaller gauge of wiring. This means it cannot carry the same amperage, as the standard 4-pin Peripheral power cable.

I would recommend this,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=899124&CatId=1483

A) 1 -> 20 + 4-pin ATX main power cable.
Can be used as a 20-pin ATX main power cable, or a 24-pin ATX main power cable, which is what you need.

B) 1 -> 4-pin ATX +12 Volt power cable.

C) 6 -> SATA power cables

D) 4 -> Standard 4-pin Peripheral power cables

E) 1 -> Small 4-pin Peripheral power cables

F) 1 -> 6-pin PCI Express power cable

G) 1 -> 6/8-pin PCI Express power cable.

In the future, (Or now if you have one), you can upgrade to a better graphics card, that needs an additional power cable, IF you wish.
The 6-pin PCI Express power cable.

You also have a 6-pin or 8-pin PCI Express power cable.
(6/8-pin PCI Express power cable)

All the pins can be used together, and make an 8-pin PCI Express power cable, for a very powerful graphics card that requires this cable.

Just added bonuses with today's modern power supply's.

For additional questions please post in a Comment.
Regards,
joecoolvette

Jul 04, 2012 | Gateway DX4822-01 Power Supply 575 Watt...

1 Answer

T5274 power supply spec


That's easy Lou

Why?

Primer first before I give a recommendation. I ABHOR just posting,
"Oh, use this one".
I like to teach, so that you can use deductive reasoning based on intelligent thought.

Primer;
Because for one eMachines are a budget computer. As such they use low quality budget Power Supply's.

Probably a generic Bestec, Hi-Pro, or Delta, power supply.
250 to 300 Watt.

12 Volt power rail is probably 12 to 14 Amps.
Nothing to write home to Mom about. Just an internet, or office program computer, with compatible power supply.

The size, and shape of the power supply's case is an ATX.
Approximately 6 Inches Wide, by 5-1/2 inches Long (5.5), by 3-1/2 Inches Tall. (3.5 / Height)

ATX also refers to that is has a Soft Power On feature, plus refers to the power cables it uses.

The eMachines T5272 Desktop PC, came with an ECS 945GCT-M3 motherboard, according to my records,

http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?CategoryID=1&DetailID=719&DetailName=Feature&MenuID=1&LanID=0

To the right of the blurred motherboard photo, click on - More pictures.

1) Requires a 24-pin ATX main power cable.
Long blue connector on the right side of the motherboard, is for the IDE harddrive.
Above it the black long connector is for a Floppy Drive. To the left of the Floppy Drive connector, is the motherboard's 24-pin ATX main power cable connector.

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

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

[Note* Color does NOT matter for any power cable connector, or it's matching connector on the motherboard ]

2) Requires a 4-pin ATX +12 Volt power cable.
To the left side of the Processor socket are 6 polymer solid capacitors. To the left of them are three choke coils. Right below the last choke coil, is the motherboard 4-pin ATX +12 volt power cable connector.
An average example of a 4-pin +12 Volt power cable, and it's respective connector on the motherboard,

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

This is power for the Processor.

3) Since there are four black SATA headers on the motherboard, I imagine you will be using a SATA harddrive. (Can also use a SATA optical drive too. {CD/DVD drive)

You will need a SATA power cable for each SATA device.
Average example of a SATA power cable,

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

[ Note*
IF, your SATA harddrive has a provision for a SATA power cable, AND a 4-pin Peripheral power cable, ONLY use the SATA power cable!!

Otherwise you will burn out the SATA harddrive! May not happen immediately, but I ASSURE you it will happen down the road.

Average example of a 4-pin Peripheral power cable,
(Erroneously referred to as a 'Molex' power cable. Name stuck, just like calling an adjustable open-end wrench, a Crescent wrench ),

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

[Also, it is a Standard 4-pin Peripheral power cable. The one used for a Floppy Drive, is a Small Peripheral power cable. Now used for power to a Card Reader ]

D) Standard 4-pin Peripheral power cable/s. May need for computer case fan/s, besides the one on the motherboard, or power to an IDE optical drive, or IDE harddrive.

Primer over.

Recommendation, and why;

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4362114&CatId=1483

[NOT advertising for said website. You may find a better price from another reliable dealer. Do a search ]

1) 140Millimeter Fan.
A larger fan runs slower than a smaller fan, (80mm), and puts out more air. This makes it quieter, and has more efficient cooling.

UNLESS, of course you are gaming! Will put out more noise. But, let's be real here. If you're gaming, with the sound up, are you going to hear the fan? Lol!

2) It's SLI ready. Which means it's also CrossFire ready. Can run two graphics cards.

You can use the 6-pin PCI Express power cable for one graphics card, and use the 6-pin PCI Express power cable, from the 6-pin/8-pin PCI Express power cable, for the other graphics card.

3) There are TWO 12 Volt power rails. Yes, still actually comes from one main 12 volt power rail, but divided amperage between the two.

25 Amp's for EACH 12 volt power rail.
Yes, you can total that up to 50 Amps for 12 Volt power.

4) Has all the power cables you'll need now, and possibly for the future.

5) Is reliable. Has an 80 percent efficiency rating, but at a 480 Watt power load it is 83.5 to 86.6 percent efficient.
81.9 percent efficient at 600 Watts,

http://www.hardwaresecrets.com/article/936

[Suggest read the entire article. This website is VERY proficient at testing power supply's. Does NOT care what the manufacturer thinks. They tell the Truth. They also are the only website to my knowledge, that has an EXPENSIVE power supply tester. Tests the LOAD, for one thing. They also 'dissect' the power supply, and look at all components inside ]

6) The price.
Do not have to 'Break the bank', to get more bang for your buck.

For additional questions please post in a Comment.

Regards,
joecoolvette

Jun 15, 2012 | eMachines T5274 Desktop PC

1 Answer

Atx motherboard wiring diagram


For the power cables from the Power Supply? Or Power Supply, and Front Panel header on the motherboard?

For both of these you need to state the computer manufacturer name, and Model Number.
Post back in a Comment.


If you just wish a generic, one-size-fits-all explanation;

A) 20 or 24-pin ATX main power cable.

The older computers use a 20-pin ATX main power cable. As computers needed more power to the motherboard, the 24-pin ATX main power cable was brought out,

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

Scroll the page down for info on the 24-pin ATX main power cable.

[ Much older motherboards (AT) used two main power cables. { In the link - Original PC main power cables} ]


B) 4-pin ATX +12 Volt power cable.
Was brought out because Processors needed more power, than the 24-pin ATX main power cable feeding the motherboard, could deliver.

Power for the Processor,

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


C) 4-pin standard Peripheral power cable
Commonly misnomered as 'Molex'.

Molex was a model name given by the first manufacturer, of this design of power cable connector.
The name stuck. Kind of like referring to an adjustable open-end wrench as a Crescent wrench.

It is also referred to as a 4-pin Standard Peripheral power cable, because there are two styles of 4-pin Peripheral power cables.

4-pin Standard Peripheral power cable,

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

Generally used for IDE (PATA) harddrives, and IDE optical drives.


4-pin Small Peripheral power cable,

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

Older computers used it for power to the Floppy Drive. It's generally used now to provide power for a Card Reader.

Note that both types of connectors use the same power wires, and 2 ground wires.
Yellow is 12 Volts
Red is 5 Volts
Black is Ground

[ Also, in the ATX main power cable:
Orange is 3.3 Volts, the Green wire is the Soft Power On wire. Abbreviated as PS_ON.

Power Supply plugged into power, the Soft Power On wire is briefly touched to ANY Ground wire. This is bypassing the Power On switch.
If the computer (Power Supply) comes on, you have a bad Power On switch.
IF the computer (Power Supply) does NOT come on, you have a bad Power Supply ]

(ALL Black wires are Ground wires. They all lead back to one central Ground point.
ALL power wires lead back to one point in the power supply, for EACH power wire.

The 12 Volt power wires, (Yellow), all lead back to one point in the Power Supply.
This is the 12 Volt power rail.

The 5 Volt power wires, (Red), all lead back to one point in the Power Supply.
This is the 5 Volt power rail.

The 3.3 Volt power wires, (Orange), all lead back to one point in the Power Supply.
This is the 3.3 Volt power rail ]

D) SATA power cable
15-pin power cable for SATA harddrives, and SATA optical drives,

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

[ The smaller 7-pin SATA connector is the interface cable, or data cable.

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

It will burn out the harddrive if you use both. It may not do it right away, but eventually it will.
I have had people state over the years, that they were using both power cables. Came back two months later to tell me their harddrives had burned out ]

More to follow in a Comment.

Regards,
joecoolvette

Sep 30, 2011 | Computers & Internet

1 Answer

My XPS 420 mysteriously quit working (odds are on the 18 month old pushing the power button on and off and on and off and... you get the picture) So the power button light was blinking amber. I replaced...


So. you replaced the power supply, was the computer working properly before you replaced the power supply? I am thinking that your motherboard is the issue. Usually when you get a blip of power and the fans only work for a second, it is usually a burned out motherboard. One can never be certain without looking at the unit first hand, but that is an educated guess.

You can try re-connecting the power supply leads to the motherboard and disconnecting all other hardware except for the hard drive. See if you have a hardware problem with you CD or your Floppy drive (if you have a floppy). If your secure in the fact that you have a good power supply now, this is an option.

Let me know what experience you have if you go ahead and try this procedure.

Brian

Dec 22, 2010 | Dell Computers & Internet

1 Answer

The power supply light is flashing and my computer won't start up. No fan, nothing. I disconnected the power to the mother board and the light burned solid when plugged in. I have switched the watts...


Bad Power Supply.
Weak voltage power rail, or rails.
{There are three voltage power rails.
1) The 3.3 Volt power rail
2) The 5 Volt power rail
3) The 12 Volt power rail}

The flashing Green LED light is one direct indication of this for HP computers.
Usually there is at least enough power to light LED lights, and spin fans, but your Power Supply doesn't even have that much power.

1) All of the LED lights on at once use less than 1 Watt of power
2) EACH fan uses 2 to 3 Watts of power
3) A typical Processor can use 51 to 125 Watts of power.
Depends on what Processor it is.

The HP Pavilion A847C desktop computer has an ATX power supply, with a maximum rated wattage of 250 Watts.

The ATX form factor for a Power Supply refers to it's case size, for one.
5-1/2 inches Long, 3-1/2 inches Tall, and 6 inches Wide
The common type of Power Supply used in over 80 percent of PC computers out there, and readily available all over.


HP Support > Pavilion a847c desktop computer > Main support page,

http://h10025.www1.hp.com/ewfrf/wc/product?product=448706&lc=en&cc=us&dlc=en&submit.y=7&submit.x=5&lang=en&cc=us

Click on Product information in the list
Now click on Product specifications

Finally click on > Motherboard Specifications, PTGD1-LA (Goldfish )

Scroll the page down to view the motherboard illustration and photo.


The replacement Power Supply has to have,

A) A 24-pin ATX main power cable.
In the motherboard photo, view the Ram Memory slots. The long Blue, and Black slots.

To the right of the bottom corner of the Black ram slot (Slot 4) is a whitish connector.
Two columns of 12 socket holes.
This is where the 24-pin ATX main power cable plugs into.
(ATX Power Connector in the motherboard illustration)

Typical 24-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

NOTE the Lock Clip on the side of the connector.


B) 4-pin ATX +12 Volt power cable.
At the bottom Left corner of the Processor socket is a whitish square connector.
4 socket holes.
This is where the 4-pin ATX +12 Volt power cable plugs into.
(ATX12V in the motherboard illustration)

Typical 4-pin ATX +12 Volt power cable,

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

NOTE the Lock Clip on the side of the connector.

{The top of the Lock Clip is squeezed in to release it, and is held while the power cable is removed.
Same for the 24-pin ATX main power cable's connector}


C) SATA power cable.
Used for the SATA harddrive

The SATA power cable has 15 pins, and is the longer connector.
The SATA data cable has 7 pins, and is the shorter connector.

IF, the SATA harddrive has provisions for plugging in a SATA power cable, AND a 4-pin standard Peripheral power cable, ONLY USE the SATA power cable.
Otherwise you will burn up the SATA harddrive.

The SATA power cable plugs into the SATA harddrive.
One end of the SATA data cable plugs into the motherboard, and the other end plugs into the SATA harddrive.

Below the ram slots in the bottom Right corner are the SATA headers on the motherboard, that the SATA harddrive plugs into.
The Blue, Orange, Black and White connectors.

Of course the SATA harddrive only plugs into one of them.
Looking at the motherboard illustration you will see they are numbered.
SATA 1, SATA 2, SATA 3, and SATA 4.

IT DOESN'T MATTER which one you plug your harddrive into. (Or any SATA device)
That's the beauty of SATA.
BIOS will find the harddrive.
But for you, it will be easier to keep track of where the SATA harddrive is plugged in, if you just use SATA 1.

Typical SATA power cable,

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


D) 4-pin standard Peripheral power cable.
Commonly referred to as Molex. (Misnomer)

Used for optical drives, Fans, and other associated hardware.

Typical 4-pin standard Peripheral power cable,

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


E) 4-pin Small Peripheral power cable.
Used to be commonly used for a Floppy Drive.
For your computer it provides power to the Memory Card Reader.

Typical 4-pin Small Peripheral power cable,

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

Watch disconnecting, and connecting this connector. You can bend the pins very easily.
SAFETY
WATCH your fingers as the pins are QUITE SHARP!

All of the power cables listed above are standard for today's Power Supply's.

About the Wattage.
A computer ONLY uses the power it needs, and NO more.

If you put a 10,000 Watt power supply in, and the computer only needed 100 watts for what it is doing, it will ONLY use 100 watts.
To wit, if you install a Power Supply with more Wattage than 250 Watts, it will NOT hurt your computer.

If you need guidance in replacing your Power Supply, or recommendations for a Power Supply, please state in a Comment.

Regards,
joecoolvette

(Apologize for being so lengthy)

Nov 24, 2010 | HP PAVILION A847C Intel Pentium 540 HT...

1 Answer

Can not get computer to power back up no lights on front o rear just little light on mother board have dell 8400


Bad Power Supply, sscorbett.

Usually you have enough power to light LED lights, (Like the harddrive activity LED light for add-in cards, that you see on the motherboard), and spin fans, but Not enough power to turn the Processor on.

Dell Support >Dimension 8400 > Service Manual

http://support.dell.com/support/edocs/systems/dim8400/SM/index.htm

Technical Overview > System Board Components

http://support.dell.com/support/edocs/systems/dim8400/SM/techov.htm#wp1052739

harddrive activity light for add-in cards (SCSI LED)

The Dimension 8400 comes with an ATX style of Power Supply, that has a maximum rated Wattage of 250 Watts.
1) ALL of the LED lights combined use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts
3) A typical Processor can use 51 to 125 Watts.

Your Power Supply just has enough power to light that LED light.
Weak voltage power rail.
Replace the Power Supply.

[ There are three power rails inside that SMPS.
Switched-Mode Power Supply.

1) The 3.3 Volt power rail
2) The 5 Volt power rail
3) The 12 Volt power rail ]

The ATX form factor for a Power Supply refers to the size, and shape of the case, for one.
Approximately 6 inches Wide, 5.5 inches Long, and 3-1/2 inches Tall.
The ATX power supply case in the Dimension 8400 however, is shorter in length.
It is 4 inches Long. (Depth)

Not an advertisement for the website, nor manufacturer.
Reference for the case size, and power cables needed,

http://www.cputopia.com/hp-400w-dell-dimension-8400.html

Scroll down to see the connectors of the various power cables needed.

You may have a Power Supply with these dimensions, and needed power cables, in an unused computer.
Perhaps someone has upgraded to a better computer, and has an unused computer that you can temporarily borrow the Power Supply for a test unit.

Make sure it has at least 250 Watts (Maximum rated wattage), plus,

1) 20-pin ATX main power cable. (Or a 20 + 4-pin ATX main power cable)

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

[ 20 + 4-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20plus4 ]

2) 4-pin ATX +12 Volt power cable

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

Plus the various power cables needed for the Harddrive, optical drive/s, and computer case fan/s, if it/they do not connect to the motherboard.

Oct 21, 2010 | Dell Dimension 8400 power supply ** FREE...

1 Answer

I have an emachine et1161 i hit the start button and the prosser fan starts but nothing else if i hold the start button then the cd rom starts and i can feel the hard drive start but nothing will come on...


Suggest you change out the Power Supply, with a KNOWN to be good, and compatible Power Supply.

[Compatible:
Must have the correct power cables, and the correct amount of them.
1) 20-pin ATX main power cable;

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

2) 4-pin ATX +12 Volt power cable; (Power for the Processor)

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

3) SATA power cable; (Harddrive)

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

4) Standard 4-pin Peripheral power cables for the optical drive/s, and any fans;

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

5) Floppy Drive power cable. Not used for a Floppy Drive in this case, but power for the Card Reader;

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

Must have the correct Form Factor.
The Form Factor of the Power Supply for the ET1161 is ATX.
Size of the Power Supply case is approximately 3-1/2 inches Tall, 6 inches Wide, and 6 inches Long.

Should have 250 to 300 Watts.

Why am I stating this? Because you, or someone you know, may have an unused computer sitting around that you can borrow the Power Supply for a test. (GOOD and Compatible)

From your statements, and my diagnosis, I believe you have a bad Power Supply.
Weak voltage power rail.

Enough power to turn on LED lights, and spin fans, but not enough to turn the Processor on.
1) ALL of the LED lights combined use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts of power.
3) A typical Processor can use 51 to 125 Watts of power.
Depends on what Processor it is.

I also base it on that eMachines uses low quality generic Power Supply's.
Bestec, or Delta, or another generic Power Supply manufacturer.

I also base it on that Power Supply failure is one of the leading causes of computer failure.

(If the inside of the computer, and the inside of the Power Supply, are not cleaned out on a regular basis as needed, this is also another contributing factor.

Use a can of compressed air for computers. Power unplugged to computer, and observe Anti-Static Precautions.
{Use the plastic straw in the ventilation holes of the Power Supply)


Feel the harddrive start? Yes. You feel the Platters inside the harddrive being spun by the spindle motor.

No Processor operating, there is nothing to find the boot record on the harddrive. The platters spin, but the Read/Write heads are not brought into play by the Actuator motor

[BIOS = Basic Input/Output System.
A small program that when the computer is first turned on, looks to see what devices are installed, does a Ram Memory count, then TURNS the Processor on, and hands the computer over to the Operating System.

An optical drive, (CD/DVD drive) will operate even if the Operating System doesn't. It's a mechanical device that uses 12 Volts.
(One example of an Operating System is Windows XP ]

How harddrives work;

http://computer.howstuffworks.com/hard-disk.htm

Sep 25, 2010 | E-Machines Computers & Internet

1 Answer

My evolution 3000 been occasionally powering down for no apparent reason for a couple of weeks. now completely died. no power at all. won't switch on or show any life.


Power Supply's have a Form Factor. (Actually only motherboards do, but most Power Supply's follow the motherboard Form Factor)

The ATX designation determines it's size, shape, and factors concerning the various power cables coming out of it, (Spaghetti), plus other concerns.

An ATX power supply shape is generally close to 6 inches long, (15.24 Centimeters), 6 inches wide, and 3-1/2 inches tall.
(8.89 Centimeters)

It is the common size and shape used for 90 percent of the personal computers made, out there.

From what I have been reading about Evesham, they used typical power supply cables used for most ATX power supply's.

Basic specifications on the Evesham Evolution 3000 desktop computer,

http://www1.epinions.com/specs/pr-Evesham_Evolution_3000_evop3ghblulightmar04_PC_Desktop

Power Cables:

1) Don't know if the Power Supply will have a 20-pin ATX main power cable, or a 24-pin ATX main power cable.

In reality the point is moot, because new power supply's have a main power cable which will be a 20-pin connector, or a become a 24-pin connector.

To expound,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20plus4

(If you scroll up the page, you can see a 24-pin ATX main power cable, and it's respective connector.

Scrolling further up produces a 20-pin ATX main power cable, and it's respective connector.

Color of the connector does not matter)

2) The Evesham Evolution 3000 specifications, state that an Intel Pentium 4 processor is used.

This means there will be a 4-pin ATX +12 Volt power cable, which plugs into the motherboard.

Example,

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

(Again, color of the connector does not matter)

3) There will be a few 4-pin Peripheral power cables,

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

One connects to the Harddrive, one connects to the Optical drive, (Or optical drives. Spec's state just one CD/DVD drive is used)

4) There is a Floppy Disk drive power cable,

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

(Again, I'm going off of the specifications stated. Your Evesham may not have a Floppy drive)

To be continued in a Comment.

Jun 15, 2010 | Evesham Evolution Blue Beast...

1 Answer

Blank screen on start up


Try removing all cards with the exception of the video. Remove all memory leaving (1) to boot from.
Disconnect power and reset the processor.
If you have a boot disk or copy of XP on disk, try to boot from the CD or DVD.
If the unit boots at all the problem may be the HD.
If not try downloading the BIOS update for your chipset.
Remove all extra drive, like secondary CD or DVD drives, Floppy or Zip drives.
You may have burnt the processor but I don’t think so.
Power supply is OK or you would not power up. Their are 3 or 4 supply voltages from supply, +- 12 volts, +- 5 volts and +-3.3 volts.
You may have a secondary 12 volt 4-pin plug but that is for on board video.
Try a boot disk and flash your BIOS, if you can.
Hope this helps.

Jul 26, 2009 | Gigabyte GA-M55plus-S3G Motherboard

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