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 Post subject: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 12:27 pm 
Coppermine
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Been reading all over the net and I STILL don't know exactly what MOSFET is for. I discovered a MOSFET socket on the mobo of the new rig I am building. Can anyone explain it to me like I am a 5th grader what exactly a MOSFET is and what it is for?????


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 12:46 pm 
Smithfield
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MOSFET stands for Metal Oxide Semiconductor Field Effect Transistor. It's a basic building block for solid state electronics. In digital circuits it's basically just an electronic-controlled switch.


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 12:56 pm 
Clawhammer
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robertco300 wrote:
I am a 5th grader

No argument from me.

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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 1:38 pm 
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robertco300 wrote:
I discovered a MOSFET socket on the mobo of the new rig I am building.


what mobo is this?


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 3:36 pm 
Coppermine
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CharBroiled wrote:
what mobo is this?



Sabertooth 990FX.


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 3:37 pm 
Smithfield
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The product description mentions nothing about a "MOSFET socket", other than the MOSFETs are military grade.


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 5:50 pm 
Coppermine
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Quote:
The product description mentions nothing about a "MOSFET socket", other than the MOSFETs are military grade.

He wrote another post regarding his motherboard; I responded based on my analysis. Now, like robertco300, I don't know what a MOSFET is (or does), however this one is sticking out like it is a connector of some sort. I think we're basically trying to understand:
  • Is it something we need to be concerned about?
  • Is it a connector and to what should we connect?
  • You mention it's an electronic controlled switch - what does it switch on/off?
  • Are there setting related to the MOSFET that can be adjusted? If so, where? And what will adjusting the settings do?

I apologize for my low-level understanding of the MOSFET.


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 6:07 pm 
Smithfield
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This is what a stand alone MOSFET looks like: http://en.wikipedia.org/wiki/File:D2PAK.JPG

And while I did say they're used as a switch, that's not their exclusive application. If anything, you'll find them in electrical housekeeping circuitry on the board in question. But there are other applications that I'm not aware of. It's a multipurpose device. So yeah, nothing to worry about.

Anyway, just read http://en.wikipedia.org/wiki/MOSFET or some other electronics for dummies thing


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 9:01 pm 
Coppermine
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Appreciate the reply.

It looks like a fan connection but only 3 pin, after much reading on the net I believe it to be a semiconductor.......a transistor an amplifier actually. Even though it looks like a connection it actually is not. So everything is cool.


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Mon Feb 25, 2013 11:24 pm 
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you need post a picture with whatever it is highlighted.

you mobo has both 3 and 4 pin fan connectors. it may also be a jumper.

dont plug anything into it if youre not sure.

the one thing it certainly isnt, is a connector for a mosfet.. what gave you that impression anyway?


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Tue Feb 26, 2013 5:53 am 
Clawhammer
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btdog wrote:
Now, like robertco300, I don't know what a MOSFET is (or does)


Just click the embedded video I posted above. And you will be smarter than a 5th Grader!

Image


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Tue Feb 26, 2013 4:25 pm 
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If you look at the picture on neweggs site, (pictures here), right about the CPU socket in amongest the transistors there is a 3 pin header. I think that is what the OP is asking about.


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Wed Feb 27, 2013 5:42 am 
Coppermine
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nsvader is correct. It also doesn't appear to have it's own label on the mobo which leads me to believe it is not supposed to be connected to anything, certainly not a power source.

Does anyone here have a layman's explanation as to what a MOSFET is/does??


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Wed Feb 27, 2013 6:36 am 
Smithfield
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Again, a MOSFET is a multipurpose transistor device used in electronics. It could be an electronic switch. It could be used in some electrical house keeping circuitry. It could make you coffee. But until we have the actual schematic of the motherboard, you cannot say for certain what those MOSFETs are doing.

EDIT: Actually Wikipedia pretty much summed it up - "The metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a transistor used for amplifying or switching electronic signals."

That's really all there is to it. Now what it's doing in regards to the motherboard, my original content still stands.


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Wed Feb 27, 2013 9:59 am 
8086
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MOSFETs are transistors ( which amplify and switch electronic signals). Transistors normally come in 2 flavors, NPN and PNP(negative positive negative, and positive negative positive), this applies to MOSFETS as well, they either come in negative or positive types (PMOS and NMOS, the FET is usually truncated). When you take both types and wire then in a circuit in a complementary fashion, you get CMOS or Complementary Metal Oxide Semiconductor. So to sum up, what they are listing in the specs is that they are using military-standard MOSFETs to create their CMOS, the standard units are very susceptible to ESD so these probably have a higher tolerance level. Hope this helps.


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 Post subject: Re: Can Anyone Explain what MOSFET Is?????
PostPosted: Wed Feb 27, 2013 5:00 pm 
Coppermine
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Brilliant tke.....where were you a few days ago..????

Yes, this mobo advertises that it is military grade and your summation was outstanding.


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