As per my sig, I have a UD7 mobo; this has three unidentified temperatures from chip IT8720F: Temp1, Temp2 and Temp3
I'm trying to work out which temperature refers to which bit of hardware.
Currently I am maxing out two graphics cards and my CPU, and temperatures are thus:
Temp1 is at 55ºC
Temp2 is at 66ºC
Temp3 is at 62ºC
Unfortunately my knowledge on motherboard electronics is lacking, but I've come to the following conclusion:
I believe Temp2 is closely related to the processor but fairly unrelated to the memory controller. This is based on it rising rapidly when the CPU is put under load and falling rapidly on idle. Also on the 'blend' test in Prime95 it reaches a substantially lower score than the 'small FFT' test - thus my reasoning on the memory controller. However, there is up to 20ºC difference between the core temperatures and Temp2; I don't know whether this is of note.
Temp1 and Temp3 remain roughly constant whether the processor/graphics cards are under load or not.
I identified three possible sites for temperature monitoring: NB, SB and MOSFETs. I don't know exactly what each of these do, but I think the NB handles PCI-e and the SB handles SATA, amongst other things. I would therefore have expected the NB temperature to change with turning on/off the graphics cards (none of them do) and the SB to change when I copy large files between the SATA ports (none of them do). I do not know how I can test the MOSFETs!
Does anyone have any thoughts on what these temperatures might be for, and how I can test them? It's not really that important but it's bugging me.
I'm trying to work out which temperature refers to which bit of hardware.
Currently I am maxing out two graphics cards and my CPU, and temperatures are thus:
Temp1 is at 55ºC
Temp2 is at 66ºC
Temp3 is at 62ºC
Unfortunately my knowledge on motherboard electronics is lacking, but I've come to the following conclusion:
I believe Temp2 is closely related to the processor but fairly unrelated to the memory controller. This is based on it rising rapidly when the CPU is put under load and falling rapidly on idle. Also on the 'blend' test in Prime95 it reaches a substantially lower score than the 'small FFT' test - thus my reasoning on the memory controller. However, there is up to 20ºC difference between the core temperatures and Temp2; I don't know whether this is of note.
Temp1 and Temp3 remain roughly constant whether the processor/graphics cards are under load or not.
I identified three possible sites for temperature monitoring: NB, SB and MOSFETs. I don't know exactly what each of these do, but I think the NB handles PCI-e and the SB handles SATA, amongst other things. I would therefore have expected the NB temperature to change with turning on/off the graphics cards (none of them do) and the SB to change when I copy large files between the SATA ports (none of them do). I do not know how I can test the MOSFETs!
Does anyone have any thoughts on what these temperatures might be for, and how I can test them? It's not really that important but it's bugging me.
