Question about Intel Motherboard

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Your solution re motherboard

Could you please explain what this part of your solution means - "vrm circuit mosfet sort " ?

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  • udinho May 11, 2010

    thats righto!!! salute to hvpatel


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"voltage regulator module" thats have next to core voltage connector it's supply to cpu
cpu need 2 volt 45 amp and our power supply can produce voltage 12 volt 3 amp so motherboard can produce more amp for cpu . 6 mosfet using for this process it's near by cpu

Posted on Apr 14, 2008

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No power vrm supporting mosfet

I gave a solution already, but do not see it listed in my user account. Forgive me if I post this twice;

A Voltage Regulator Module isn't used on an MSI G31M3-L V2 motherboard. No separate module.
It is now incorporated into the Motherboard Voltage Regulator Circuit, for the motherboard.

(Unless your problem doesn't deal with an MSI G31M3-L V2 mobo, AND you are referring to an older motherboard, or server motherboard that Does)

You need to follow the circuit traces (Signal Traces) on the motherboard, and see where they lead from the Power MOSFET Source pins.
See which electronic component has failed in the circuit.

You know Electrolytic Capacitors (Radial Aluminum Electrolytic Capacitors), are used in the motherboard voltage regulator circuit.
They ARE the weakest link.

Think what happens if some are used in a Series circuit, and one of them goes bad?
Just like the old Christmas tree lights.




Nov 13, 2012 | MSI G31M3-L V2 Motherboard

1 Answer

Diagram of vrm section

Intel D845GVSR,

Doesn't have a Voltage Regulator Module.

It has a motherboard voltage regulator circuit. It is integrated into the motherboard, not a separate module.

You will have to find the components, in the motherboard voltage regulator circuit, yourself.


Radial Aluminum Electrolytic Capacitor

Starts at 0:04

Electrolytic Capacitors are the weakest link in the motherboard voltage regulator circuit.

Part of what the motherboard voltage regulator circuit does, is to regulate voltage for the Processor.
Just like a VRM does.

A Processor has to have a steady, 'clean', supply of voltage, and it MUST be within a VERY small tolerance range.
Cannot be too much, or too little.

For additional questions please post in a Comment.

Jun 28, 2012 | Intel D845GVSR Motherboard

1 Answer

Processor not heating

Check 12 Volt Motherboard VRM Section, Next Checek VRM Upper Mosfet or lower Mosfet one of them may b short.

Mar 08, 2012 | ASUS P4P800-MX Motherboard

1 Answer

Fan move but, no display, every mosfet of vrm section are ok,input coil give 12vlt but output coil does'nt give any volt

Not sure what you mean exactly, but try changing the PSU if there is not voltage from the power rails

Dec 29, 2010 | MSI K9MM-V Motherboard

1 Answer

Computer not turning on

open core voltage connection after if that power on
so problem in your motherboard vrm circuit goes off

Jan 17, 2009 | Evga nForce 680i SLI (122CKNF68)...

3 Answers

GA-EP35-DS3R won't POST - Core Duo E8400 / 2GB Crucial 8500 DDR2

remove your cpu core voltage connector and power on if power on still so 100% your vrm circuit mosfet sort

Mar 30, 2008 | Intel Motherboard

7 Answers

Intel motherboard 845gvs

intel 845 gvsr motherboard have two most problem

vrm circuit fail IC ADP3168 {between the cpu and core volt connector}
f7338 mosfet ic fail {between the memory slot and ide connector}

Feb 26, 2008 | Intel Motherboard

1 Answer

Ga-7N400E powerup problem

VRM Circuit problem found there
disconnect only core voltage connetor and power on motherboard
if motherboard on so confirm that your vrm circuit is sort

replace vrm circuit mosfet

Feb 23, 2008 | Gigabyte GA-7N400E-L Motherboard

1 Answer


Check your power supply - it could be providing too much current. There could also be a faulty VRM on the board, but there is nothing you can do about that.

A little thermal epoxy and ramsinks (video card ram modules sized heatsinks) might help.

Dec 05, 2007 | Gigabyte GA-8I945P-G Motherboard

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