Hello i use AMD FX 8320 and Gigabyte 990FX UD3 Rev. 4.0 MB and custom watercooling system.
CPU Temp and North Bridge temp have always different 10C for example 35C CPU 45C NB. or like on screen CPU 51C and NB 60C
Liquid temp 49C always have the same temp as the CPU temp 51C (different ~2C). - this on passive mode (without fan)
North bridge on mother board have 80mm fan and temp is ok (42-44C)
I need slow down NB if temp will be higher then 60C or this temp dosen't matter ?