I have a P35-DS3L motherboard and I am having a problem with restarts that I belive i have narrowed down to the motherboard.
I have noticed that the ATX voltage fluctuates quite a bit. When it drops below 11.4 sometimes 11.0 it hard resets. now I am using easytune6 to watch the voltage and i have a very nice multimeter connected to the other ATX 12v plug comming from the PSU.
Under load the voltage drops and rises and drops and rises however some times it drops too low and the system hard resets. I use fur mark to put it under load.
The multimeter reads a solid 12.27 and easytune right now is reading 12.23
however when i but it under a load the voltage drops alot on easy tune where the PSU doesn't even flinch. Now i do know that the votage will drop some but no more then 3-5% which it is.
Now for the questions.
Is my suspicions correct, assuming the motherboard is bad?
Is there a way to test the NorthBridge voltage to see if its regulating corectly?
Could it be something else that im missing?