Question about Mad Dog Multimedia SurePower (MD-350WPS) (MD350WPS) 350-Watt Power Supply

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Power Supply Cables

I need to find out what each of the cables connects to. I am not sure what connect to what except for the 24 pin. Is there a certain order for the cd drive and floppy. Also, which ones connect to the hard drive

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The hard drive and CDROM connect to the large flat four pin cables [there are several.] The floppy[s] connect to the tiny four pin cable that is on the same line as one or more larger four pin cables...

There is no order, just pick them in a way that they all reach without strain.

Posted on Aug 15, 2008

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PC Power Issue


If it only comes on when you move the cables but not if you don't then one of the cable connections (pins) are loose or internally broken. Unplug it and check each cable/pin for any loose connections, bent pins etc.

Nov 09, 2014 | CORSAIR CX Series Modular CX750M 750W ATX...

2 Answers

How to install


HP Support > Pavilion a1630n Desktop PC > Main Support page,

http://h10025.www1.hp.com/ewfrf/wc/product?product=3245027&lc=en&cc=us&dlc=en&lang=en&cc=us

Took you this way in case you need additional information, and software; in the future.

No, replacing the Power Supply is not listed.

In the list click on the blue - How To
Now on Adding/Replacing Hardware.
Opening the PC Case

BEFORE working inside your computer, follow Anti-Static Precautions.

Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.
Relieve your body of Static.

Computer ON a table, computer unplugged from power, computer case open;
TOUCH an unpainted surface of the metal frame, of the open computer case.
This action will relieve your body of Static.

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

1) Remove ALL cables. If you are not EXACTLY aware of where each cable goes, suggest making a drawing, and notes; as to where each cable goes before removing them.

2) Suggest lay a static free towel on the table you're working on, and lay the computer on it's side; opening of computer case -> Up.
Towel/cloth helps prevent scratching the table, and the computer.

Much easier to work on the computer this way, IMHO.

3) The plastic 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 activity LED Restart switch; IF used)

The Front Panel header pinout is NOT listed. I THINK I know where the wires go. The Front Panel header pins. I do NOT know the color of the wires, though.
When replacing a Power Supply wires get bumped, and may get accidentally disconnected.
Suggestion is you make a drawing, and notes for the Front Panel header, and color of wires; also.

Also for the headers going along the bottom of the motherboard.
Better to safe, than trying to figure it out later.

4) The Power Supply has a Form Factor. This term was used strictly for motherboards, but has gone also to the Power Supply, and Computer Case.

The Form Factor for your Power Supply is ATX.
The term refers to the size, and shape of the case; and the power cables.
Size is approximately 6 inches Wide, 5.5 inches Long, and 3.5 inches in Height.
(152.39mm Wide x 139.7mm Long x 88.89mm Height)

It is a generic unit made by Bestec, HiPro, or Delta.
Maximum rated Wattage is 300 Watts.
(ACTUAL wattage is more like 60 to 70 percent, of what is stated.
180 to 210 Watts!)

This is JUST a look at an example. Not advertising,

http://www.amazon.com/dp/B001KNO1P6/ref=asc_df_B001KNO1P62343186?smid=AZCEI3EMXUPTH&tag=nextagusmp0359933-20&linkCode=asn&creative=395105&creativeASIN=B001KNO1P6

By the photo you can see the type of power cables, and number used.

If I were recommending a replacement Power Supply, I sure would not recommend the above example.
A) Low quality Electrolytic Capacitors
B) Low quality Rectifier Bridge
C) Low quality MOSFET's
D) Low quality wiring; too small in gauge size

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3255390&CatId=1077

The above example gives a true 350 watts. Has all the power cables you'll need, an extra ones.

Suggest you find a Power Supply comparable to this one, when replacing.

Here's a look at your motherboard,
(Product information > Product specifications > Motherboard Specifications - A8M2N-LA (Nodus M3)

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00757531&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3245027

5) There are TWO power cables from the Power Supply, that plug into the motherboard;

A) 24-pin ATX Main power cable;

Looking at the motherboard photo, this power cable's connector, is all the way to the right/middle of the motherboard.
It is the whitish long connector that has two columns of 12 socket holes.
This is a general example of the power cable, and it's respective connector on the motherboard. NOTE* Color of connectors does NOT matter,

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

Note the power cable connector's Lock on the side, shown in the middle photo, and photo to the right.
The Lock is hinged. Operates like a see-saw on a playground.
The Top, or part that is closest to the wires; is squeezed in with the fingers, and thumb.

This action brings the hooked end at the bottom, away from the Lock Tab, on the motherboard's female connector.
Now the power cable's CONNECTOR, can gently be wiggled, and pulled up on; with the Lock depressed.

(ONLY use the connector when disconnecting a cable. DO NOT pull on the wires)

The Power Supply I referenced as a recommendation, and all new Power Supply's; have a 20 + 4-pin ATX main power cable.

This type of power cable connector was brought out, so that the Power Supply could be used on motherboard's that required a 20-pin ATX main power cable; or a 24-pin ATX main power cable.

Either use the extra 4-pin power cable to make a 24-pin model; or don't, to have a 20-pin model. YOU will use the 20-pin AND the 4-pin power cable - together.
General example of said cable,

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

NOTE the color code of the wires, in the additional 4-pin power cable.
Two Yellow (12 Volt), One Red (5 Volt), and One Black. (Ground)


B) The second power cable going to the motherboard, also has this type of Lock;
The 4-pin ATX +12 Volt Power cable,

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

NOTE the color code of the wires.
Two Yellow (12 Volt), two Black. (Ground)

You cannot mix the two power cables up, because the connectors are different, but wanted you to be aware of their likeness.
[4-pin ATX +12 Volt power cable, and 4-pin power cable for 24-pin ATX Main power cable)

Looking at the Top/Left in the motherboard photo, the square whitish 4-socket hole connector; is for the 4-pin ATX +12 Volt power cable.

6) Looking at -
HP Pavilion Media Center a1630n Desktop PC Product Specifications; tells me there is a SATA harddrive used, and a SATA optical drive,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00753784&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3245027

Harddrive - 250GB SATA / 7200 rpm

16X DVD (+/-) R-RW RAM (+/-)R DL Lightscribe drive, is the optical drive.
Lightscribe was developed to be used on SATA optical drives. (CD/DVD drive)
Therefore I conclude it is a SATA optical drive.

The SATA harddrive, and the SATA optical drive; use this type of power cable,

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

Between it, and the SATA data cable, the SATA power cable's connector is longer. It has 15 contact pins.
A SATA data cable has 7-pins.

More in an added Comment.

Regards,
joecoolvette

Jan 09, 2013 | HP Pavilion a1630n Power Supply...

2 Answers

I just built a new computer and when i tried to boot it up nothing happened. The Corsair ax850 PSU isn't even "humming" or giving any indication that it has power. The 110v wall plug has power....


You won't get any 'fireworks' or 'smoke', widsss.

A) Make sure the Power On switch is connected to the correct pins, in the Front Panel header on the motherboard.

(The Front Panel is the plastic front of your computer where the Power On button, HarDDrive activity LED, Power On LED, etc., is located.
The pin area on the motherboard that the Front Panel cables (Wires) plug into, is the Front Panel header)

Either you do not have
1) The correct cables (Wires) plugged into the motherboard from the Front Panel,
or,
2) A bad Power On switch,
or
3) A bad Power Supply
Even if the Power Supply is brand new, it can still be a dud.

There is a simple test to see if the problem may be the Power On switch, or the Power Supply.
After you have made sure the problem is not incorrectly attaching the wrong wires, from the Front Panel to the motherboard, reply back in a Comment, and I'll detail out the simple test for you if you wish.

ALSO:
B) Make sure the 4-pin ATX +12 volt power cable is plugged in, if your motherboard uses it.
It's power for the Processor.

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

C) Your motherboard may not use a 4-pin +12 volt power cable. It may require more power.
In this case an 8-pin EPS +12 volt power cable is used. The equivalent of two 4-pin +12 volt power cables.

http://www.playtool.com/pages/psuconnectors/connectors.html#eps8

(Note*
1) Red wires are 5 volt
2) Yellow wires are 12 volt
3) ANY Black wire you see is a Ground wire )

I await your findings.
Regards,
joecoolvette

Mar 07, 2011 | CORSAIR Professional AX850 ATX12V and...

5 Answers

There is no power switch on the enhance atx 1123b that I have . What actually powers it up?


Just about every power supply I've owned doesn't have a power switch. The power supply is turned on by one of the wires in the 24 pin connector. According to this it looks to be pin 16 and how to turn it on:

"Short this pin to GND to switch power supply ON, disconnect from GND to switch OFF."

Hope this helps

Ray

Mar 01, 2011 | Enhance Technology ATX-1123B, Enhance...

1 Answer

I am trying to troubleshoot whether or not my ultra x2 connect 550 watt power supply is bad. When you press the power button on the computer, the light flashes and then noth9ing else happens. The light...


Well here is a way to check your power supply, on your hard drive connector using your volt meter and measuring from ground. this would be using one of two middle connectors it should measure +5 VDC on the red wire and + 12 VDC on the yellow wire. If these voltages are good then we got to see if the power supply is producing the -12VDC voltage. This voltage is ussed by the syustemboard on pin 14 of a 24 pin power supply. I would recommend not having your system board plugged in while measuring these votlages, but the power supply may need a load, I would plug in the cdrom.. Below are a couple of picture to explain this and a link to a website that has this documented.

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

dfish26_1.jpg The 24 pin main power connector was added in ATX12V 2.0 to provide extra power needed by PCI Express slots. The older 20 pin main power cable only has one 12 volt line. The new 24 pin connector added one line apiece for ground, 3.3, 5, and 12 volts. The extra pins made the auxiliary power cable unnecessary so most ATX12V 2.x power supplies don't have them. The 24 pin connector is polarized so it can only be plugged in pointing in the correct direction.
Pinout Pins 1 through 12 Pins 13 through 24 Description Wire color Pin number Pin number Wire color Description +3.3 volts orange 1 13 orange +3.3 volts +3.3 volts orange 2 14 blue -12 volts ground black 3 15 black ground +5 volts red 4 16 green PS_ON# ground black 5 17 black ground +5 volts red 6 18 black ground ground black 7 19 black ground PWR_OK gray 8 20 white -5 volts (optional) VSB +5 volts purple 9 21 red +5 volts +12 volts yellow 10 22 red +5 volts +12 volts yellow 11 23 red +5 volts +3.3 volts orange 12 24 black ground
Good Luck I hope this helps.

Nov 19, 2010 | PSA Ultra X2 Connect (ULT31851) 550-Watt...

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

New PSU


Hello Kathyhudson,

All the cables are connected, the PCI express (6) pin cable is only needed if you have a PCI video card.

A four pin connector is for the motherboard if it requires it.

Post back with any new questions, or additional info for further help. Thank you for choosing Fixya!

Apr 02, 2009 | Dynex 400-Watt ATX CPU Power Supply

1 Answer

Hercules switching power supply 500 wat max


yes 20 pin connecter power supply is ATX(advance technology extended )power supply and old which was low watt and 24 pin is EATX (enhaunced advance technology extended) power supply is new and high watt so 4 pin connecter can be detached from 24 pin connecter and can be fitted in 20 pin connecter

Oct 18, 2008 | Guillemot Hercules Dual Fan ATX 450W Max...

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