Question about Dell Dimension C521 PC Desktop

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I have a dell dimension c521 PC and I would like to by a new custom tower case for it. The one I want is an ATX,550-watt 20+4-pin power supply. Supported form factors are, ATX and mATX. Here's a link to the tower if this helps. http://www.geeks.com/details.asp?invtid=939PL. I'm wondering if the motherboard in my dell will work in it. Thank you very much!

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You got to find out if all the connecters,powersupply,etc ect, etc fit on it and i think it would fit your motherboard

Posted on Oct 06, 2009

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Will a NVIDIA GeForce gt 610 graphics processor work on a Dell Dimension 2400 PC Desktop


YES, Zian it will work....BUT,....................

1) It is a PCI graphics card, and uses a PCI expansion slot.

http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=2898922&CatId=319

The Dell Dimension 2400 Desktop PC's motherboard, has three long white PCI slots,

http://support.dell.com/support/edocs/systems/dim2400/en/sm_en/techov.htm#1105465

http://www.ebay.com/itm/Dell-Dimension-2400-Desktop-Motherboard-System-Main-Board-F5949-K5148-G1548-/190750417467?pt=Motherboards&hash=item2c699c623b

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

If one of those long white PCI slots is open, you can use a PCI graphics card.

Concerned that the graphics card uses DDR3 graphics memory, and your computer only uses DDR Sdram ram memory?

Don't be.

The graphics card has it's own processor (Graphics Processing Unit), and graphics memory.
It runs independent of the system resources; the Processor and Ram Memory.

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

The concern is the Power Supply.
Original power supply's maximum rated Wattage is either 200 Watts, or 250 Watts.

The above graphics card requires a minimum system requirement/power supply requirement; of 300 Watts.

I would recommend replacing the Power Supply.
(Especially with it's age, if it is still the same one)

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

ONE thing though..............
Watch the 20-pin ATX main power cable connector, and the wires in it. Be sure they are in the standard place setup.

Check the pinout, and color code of the wires,

1) Dell Dimension 2400 desktop computer, 20-pin ATX main power cable connector pinout,

http://support.dell.com/support/edocs/systems/dim2400/en/sm_en/techov.htm#1105612

2) STANDARD 20-pin ATX main cable connector pinout, and color code of wires; as set by JEDEC,

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

[Be aware that the ATX main power cable, and connector, you get with a new power supply; such as the above, will have a 20 =4-pin ATX main power cable connector,

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

Use the 20-pin connector, tie the 4-pin power cable up out of the way]

For a time period Dell was making the motherboard's main power cable connector - Proprietary.
Meaning they has that motherboard connector wire pinout changed.
Colors of wires were in a different place, than the standard setup by JEDEC.

Orange wires are 3.3 Volts (DC)
Red wires are 5 Volts (DC)
Yellow wires are 12 Volts (DC)
Black wires are Ground wires.

Guess what happens if a 12 Volt Yellow wire, is plugged into where a Black Ground wire is supposed to be?

ZZZZZZzzzzt! Motherboard fries, processor fries, ram memory fries, and graphics card. (If used)

Check the color code of the wires, in the 20-pin ATX main power cable's CONNECTOR, for the Dimension 2400's power supply.

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

Nov 14, 2012 | Dell Dimension 2400 PC Desktop

1 Answer

WHAT IS A COMPATIBLE POWER SUPPLY FOR A COOLER MASTER CAC-T05-UW?


The CoolerMaster CAC-T05-UW computer case is a Mid-Tower computer case.

It supports (Uses) power supply's that are the ATX form factor.

[Motherboards dimensions are stated as Form Factor. What Form Factor is the motherboard.
The term Form Factor is used erroneously for Power Supply's, and computer cases,

http://en.wikipedia.org/wiki/Computer_form_factor ]

The ATX form factor dimensions for a Power Supply is approximately,
A) 6 inches Wide. { Width} (15.24 Centimeters)
B) 5.5 inches Long {Length} (13.97 Centimeters)
C) 3.5 inches Tall {Height} ( 8.89 Centimeters)

The ATX form factor for a power supply, also denotes what power cables are used.

A) One 20 or 24-pin ATX main power cable.
(Power supply's sold now, have an ATX main power cable that can be used as a 20-pin, or a 24-pin. You simply use, or do not use the four extra pins,

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

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

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

C) At least one SATA power cable. Better power supply's have two, or more,

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

D) Two, or more 4-pin standard Peripheral power cables. Better power supply's usually have four,
(Misnomered as 'Molex'. The name stuck just like Crescent wrench for an adjustable open-end wrench),

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

[Don't forget that if you need a certain power cable, and the Power Supply doesn't have it, you can use an adapter power cable on two 4-pin standard Peripheral power cables ]

E) 4-pin small Peripheral power cable. Used in the older computers for a Floppy Drive. Used now for a Card Reader,

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

I'm going to state that approximately 80 percent of personal computers out there use an ATX form factor power supply.

(The rest use a smaller size of power supply, or a different shape.
This was brought about so desktop computers could be made smaller.
Less space is needed for the computer tower in the room.

BAD design, computer manufacturers, and people who desire this.
Most personal computers are cooled by AIR, except for the gamer computers that may use Water, or Nitrogen, or refrigerant.
You need a Mid-Tower, or Full-Tower computer case, or you're going to have problems down the road)

ATX power supply's are sold everywhere.

The things you need to consider, besides what form factor for the Power Supply, is what Wattage, and how much Amp's will the 12 volt power rails handle.

A decent Power Supply now should have at least 500 Watts, and the 12 volt power rail/s should handle at least 24 Amps. (24A)

{Some Power Supply's are listed as having multiple 12 Volt power rails.
Check to see what Each 12 volt power rail listed, will handle in Amperage.
Add ALL 12 volt power rail Amp's up for a total.
This is what the 12 Volt power rail amperage will be.

I'll show an example in an added Comment}

For additional questions please post in a Comment.

Regards,
joecoolvette

Aug 10, 2011 | Cooler Master CAC-T05-UW ATX Mid-Tower...

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 am looking at a Dell Dimension 4550 PC for a friend and it won't boot up...i push the power button on and there is an almost orange/greenish light on the power button... no beeps no diagnostic lights are...


Bad Power Supply. Weak voltage power rail.

[There are three main voltages produced by the Dimension 4550's Power Supply.
1) 3.3 Volts
2) 5 Volts
3) 12 Volts ]

The Power On button LED functions as a diagnostic light also.

Dell Support > Dimension 4550 > Service Manual,

http://support.dell.com/support/edocs/systems/dim4550/

Left-click on Solving Problems, then click on Power Problems

The Power Supply is just an ATX form factor version. The common Power Supply form factor used in MANY desktop computers.
(ATX form factor for a Power Supply refers to the size, and shape of the Power Supply's case.
Approximately 6 inches Wide, 5.5 inches Long, and 3-1/2 inches Tall)

HOWEVER, (Not shouting), there is an area of concern, should you try a Power Supply you may have available for a test, or purchase one.

It involves the wiring of the 20-pin ATX main power cable. More specifically the power cable's connector.

To explain view the standard wiring, set for a 20-pin ATX main power cable's connector,

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

Looking at the photo to the far right, observe the color code of the wires, going down into the socket holes of the connector.

Look at the Lock tab on the side of the connector. This will help you orient the color code of the wires, and their placement in the socket holes, to the chart below the photos.

The connector on the end of the 20-pin ATX main power cable, is a Male connector.
Where the wires go into the connector, is the Back of the connector.
In the middle photo you can see the Front of the connector.

The wires going down into the ATX main power cable's connector, end in a female metal terminal.
The connector on the motherboard, (Shown in the photo to the Left), has Pins.
The metal female terminals go over the Pins.

The pins are numbered. The color code of the wires match up to the pins.
This is shown in the chart.

Now look at Dell Support > Dimension 4550 > Technical Overview > DC Power Connectors >
DC Power Connector P1

http://support.dell.com/support/edocs/systems/dim4550/techov.htm#1101897

The illustration may not be accurate. You'll have to compare since you have the computer, and Power Supply in front of you.

For a time period Dell was a Proprietary manufacturer.
Meaning they wanted THEIR parts used on THEIR computers, and ONLY THEIR parts.
They had the motherboard manufacturers make motherboards according to their specs.

One of the specifications was that the pins would be CHANGED around, in the motherboard connector for the ATX main power cable.

They also had Power Supply manufacturers make the ATX power cable to their specifications.

This means if a user bought an aftermarket Power Supply, the color code of the wires in the ATX main power cable would Not match.

Many users did buy an aftermarket Power Supply, and installed it.
Burnt motherboards, fried Processors, and graphics cards, resulted.

Orange wires are 3.3 Volts
Red wires are 5 Volts
Yellow wires are 12 Volts.
Black wires are Ground wires.

Guess what happens when you plug a 12 Volt wire into where a 3.3 Volt, or 5 Volt, or Ground wire is supposed to Be?
POOF!

My suggestion would be to look for a Power Supply that is an ATX form factor, is KNOWN to be good, and is compatible, for a test unit.
You, or someone you know may have upgraded to a better computer, and you may be able to borrow the Power Supply for a test unit.

Compatible:
Has the Correct power cables.
1) 20-pin ATX main power cable, OR a 20/24-pin ATX main power cable.
(20-pin connector that has an additional connector with 4 pins. Just use the 20-pin)

2) 4-pin ATX +12 Volt power cable. (Also referred to as P4 MB, and P4 ATX 12V)

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

(Power for the Processor)

3) Enough standard 4-pin Peripheral power cables.
(Misnomered as Molex)

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

(Power for the IDE Harddrive, and Optical drive/s)

Also:
You can change the power wires around in the ATX main power cable's connector.
Change them around, in an aftermarket Power Supply's ATX main power cable's connector.

Want to know how post in a Comment.

Oct 09, 2010 | Dell Dimension 4550 PC Desktop

1 Answer

Dell Dimension 5150 automatically turns off


That flashing amber light is usually a sign the power supply is failed or is failing. I would suspect the power supply is the problem in yours. It is the better of the two problems connected with the flashing amber light..the other is motherboard is failing. Arrrr!
hope this helps (it takes a standard- oh say 350 watt 20-24 pin power supply unit.)
Hope an answer helps.
Please leave rating, thankyou

May 05, 2009 | Dell Dimension 5150 (DIM515MIN) PC Desktop

1 Answer

Want to upgrade power supply on Dell Dimension 4700. Bought Rocket Fish RF-550wps 550 watt powersupply to install . Unable to proceede no schematics ror placing wireing


Hi there.
Rocket Fish RF-550wps PSU is standard ATX power supply.
Dell tend to use their own power supplies which differ slightly from standard power supplies.
I suggest you take or send the Rocket Fish RF-550wps PSU back as it won't fit and order one from Dell themselves, at least then you will have a guaranteed fit.
Once you have your new power supply from Dell (or a Dell ATX power supply) it should be easy to fit in.
Post back if you need any more help.

Good luck and thanks for using FixYa!!

Mar 24, 2009 | Dell POWER SUPPLY Power Supply

1 Answer

I have a descktop dell which I both as faulty but it is brand new never used.once plugged nothing appends not even a single light. I have had a look at it and my question is. Is that possible that the...


Even if the power supply had another cable, where would you attache it. Many of the older computer power supplies had only one cable. That was all that they needed. Many 250-400 watt. No extra  power to DVDs,  CPU, or Video cards. Hope this helps .

Mar 15, 2009 | Dell Dimension C521 PC Desktop

4 Answers

Power supply fan is loud!


Essentially any Standard ATX power supply with a rating of 250 Watts or higher will work

http://www.discountelectronics.com/index.php?l=product_detail&p=1849

Feb 04, 2009 | Dell Dimension 1100 PC Desktop

1 Answer

No power supply to the tower


Be sure that the ATX or BTX power cable (the rectangular cable with 20 or 24 pins) is securely fit into the motherboard. Re-seat it if needed. Also, check the +12V 4-pin adapter (if exists) is seated, just like the 20/24 pin is. If that doesn't solve the problem, be sure that the PSU is switched on and is at 120V (USA) before plugging in the power cable. If that doesn't work, contact the computer manufacturer or the PSU manufacturer (depdending on what you purchased.)

Hope this help!
Robert W.

Jan 09, 2009 | Dell Dimension 8400 PC Desktop

4 Answers

Dell Dimension 9100 will not power up


Most likely the power supply have failed. Although the system is getting some power to the Motherboard (Flea power indication on motherboard) there are at least 5 different voltages the power supply provides for the system. Losing any one can cause a no power situation like you describe.

A standard ATX power supply should resolve (It is the 1st item I'd replace, both because it is the 1st point of failure and the cheapest to replace)

Here is one ATX power supply:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817182030

Jun 13, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

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