Crosshair IV Formula NB over-volt problem

[ObscureParadox]

Ok so i've just noticed a problem with my Crosshair IV motherboard. Basically my motherboard is over-volting my NB to stupidly high levels, up to 1.8v and sometimes even more :L This is the motherboard NB i am referring to and not the CPU-NB. This problem happens no matter what voltage setting i use in the bios. All this makes my NB quite hot 50c+. I was wandering if anyone knew what i could do to stop this from happening as i don't want a dead motherboard in a few weeks. Thanks very much.

 

[DAN131]

could it possibly be a jumper on the board unclipped or the power supply or the cables not fitted fully other than that im at a disadvantage as i do not own the board just have worked on it.

 

[ObscureParadox]

What cable supplies the power to the northbridge??? and just an update, if i run prime 95, the voltage lowers back down to just above it's normal operating voltage 1.2v ish. :L Confusing!!

 

[S_I_N]

they run warm no doubt. What are you using to get this temp?? most likely its a monitoring issue not actual issue. do you have the extreme or formula?? the extreme has a known issue with warm nb temps. Some say that simply removing the cooler for it and filing down the stand offs a bit helps other say shorter screws worked for them. I think the former is the better solution as if its a stand off it can only apply so much pressure to the nb shorter screws wouldnt do squat. I've had both boards and neither had the issue. I did notice however i was able to overclock better with the formula vs the extreme

 

[ObscureParadox]

It is the formula, and i'm using HWMonitor and i'm also getting these readings from the bios. It's weird, whenever i'm at full load the northbridge voltage is fine, when idle though the voltage goes stupidly high. I don't think it is a monitoring problem because i have noticed my computer seems to crash when it's been idling for a while, for instance if i leave it on overnight and come back to it in the morning, i will have a blank screen. I've got my pc folding now so it will keep the voltage down for me until i find out what is wrong with the board. Might even resort to getting a Crosshair V until i have the money for a new system, and then use the board for overclocking purposes later on.