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r33per

Strange DFI LP U B Problem

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Hi

 

I have the following problem

 

If I increase the Vcore upto 1.75V my systems restarts immediatly under Fullload and the diagnostig led 3 makes strange noises like *krraak* Sometimes my machine hangs there and tries to boot up but always at led 3 the sound then the same again....looping.

First LED 1 and LED2: OK then LED 3 with the strange sound.

 

I tried several PSUs(Coba, Levicom, Tagan) all about 400Watts and they were all high quality ones

Additionally tried several memories too(MDT, OCZ, Corsair, Infineon)

The CPU-temperature isn't high about 50 degree Celsius under Fullload(as long as i can see :D) in Idle mode about 39 degree Celsius ...by the way there is no chance of getting into FULLload for longer time

 

Does anybody know what my problem could be?

 

My MB: DFI NF2 LP Ultra B REV A

 

 

Further I noticed a small resistor between two mosfets which ist soldered ther...but it seems that this thing is not wanted to be there.

I wasn't able to see such a thing on any photographs of this board. The small foot of the lower mosfet is connected by the resistor with the head of the upper mosfet

Here is a picture...the small red rectangel should be the resistor.

 

Board siehe Signatur

 

lpnf2ub.jpg

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