Atx Psu Power
Atx Psu Power
atx power supply in my btx case?
is it possible to fit an atx psu in a btx case? if not, then will it necessarily fry my components if i just lay it outside the box considering it is atx and my mobo and case are btx?
It's POSSIBLE, to fit an ATX form factor power supply into a BTX computer case. It may NOT be easy however!
I suggest you DO NOT use the power supply outside of the case.
Why?
Yes, it will work.
You need longer power cables. (Don't forget about the 20/24 pin ATX power supply to motherboard cable! This baby needs to be longer also!
One more thing.
See those wires that go into this connector? The insulation of the wires is orange, red, black, yellow, and a few other colors? The Orange wire is 3.3 volts. The Yellow wire is 12 volts. The Red wire is 5 volts. The Black is ground. Green designates a 'Soft Power-On' wire.
Some computer manufacturers back in the day, {I believe they have stopped this practice now, but don't quote me}, switched the wires around.
The color code of the wire was still the same. The voltages still matched the color of the wire {Insulation}
However, the wires were not put in the socket holes, in the 20/24 pin connector, in the usual place. The standard placement.
They were moved to other socket holes in the connector. This meant if a user bought a power supply from an outside source, other than the computer maker, it burned up the computer!
Why? Because the voltages were in the wrong socket hole. 12 volts might be in the 3.3 volt hole. Poof!
Why did some of these computer manufacturers do this? There are many beliefs.
1.They did it, to dissuade people from using parts that weren't theirs.
The computer manufacturer. People were installing stuff that wasn't compatible with their computer. They didn't know better, and may not have researched the subject first. Computer doesn't work now, or has fried components inside. The user, thinks the computer maker should fix it. The computer maker, thinks the user should have had an authorized computer shop, do the work.
2.The computer maker wants their parts used. The prices are high. Buy from them, or don't buy at all. The user believes this is unfair, {Justly so}
Just wanted to give you a 'heads up' on that! For more info on this, go towards the bottom of this page. http://www.playtool.com/pages/psuconnectors/connectors.html About halfway down this page is a chart -> Connector Part Numbers. It's under that)
Let's say this power supply is sitting outside the case. It has a metal box, with ventilation holes for it's case.
Now what if a glass of liquid is accidentally spilled on it? It will spark out, and smoke.
What if the liquid is touching you, or someone else? Liquid is a Conductor. It Conducts Electricity.
You, or that person, will get SHOCKED! 120 volts or higher! (220 to 240, if your country uses this voltage!)
Add to this, that a liquid will get into the pores of the skin.
This can cause the shock to be FATAL!
What if someone under age comes in, and puts a metallic object through one of the ventilation holes? Have any younger brothers or sisters? They will get SHOCKED! At their age it can be FATAL!
So you see, it's NOT A GOOD IDEA!
Edit: BTX IS a Form Factor! However the idea behind the BTX form factor, is why an ATX power supply, MAY not just be readily put in a computer case, that uses an ATX form factor power supply!
ATX form factor power supply's, are usually mounted in the top of the computer case. (Top/Back)
They suck air UP from inside the case, and blow it out the back.
BTX power supply's are usually mounted on the bottom. (Bottom/Back)
They suck air DOWN from inside the case, and blow it out the back.
Looking at the back of a computer will reveal the way a power supply is mounted. (From the back. Not referring to the case designs, that use mechanisms to keep the power supply locked into position, on the inside of the case)
There are four screws. These are in a rectangular pattern. EXCEPT for one screw. It is offset to the inside.
Usually if you try to mount an ATX form factor power supply, in a BTX case, you will have the position of the fan sucking air off of the BOTTOM of the case! The ATX design, points the fan down. It will now be about a half inch, off of the bottom of the case! NOT GOOD! You have to make another hole in the case, so that the offset screw on the power supply, can be installed. I do not recommend using three screws. Vibration will make it noisy!
1.http://en.wikipedia.org/wiki/Motherboard_form_factor
2.http://en.wikipedia.org/wiki/ATX
3.http://en.wikipedia.org/wiki/BTX_(form_factor)
4.http://www.btxformfactor.com/
5.http://www.formfactors.org/formfactor.asp
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