h100i elite capellix and CORSAIR iCUE Commander CORE Controller

[comet91]

ok set the fans on the rad to the coolant right. but for the other fans in the case what do you set them to? i know dumb ? but im new to this stuff need a little help

[c-attack]

Coolant works for that as well. Your case fans are attempting to regulate the internal case ambient temp. The coolant temperature is affected by that in a +1 to +1 additive relationship, so it works well in most circumstances. Another other option is to pick up a cheap 10K thermistor wire to measure actual ambient exit temp (like rear exhaust), but the first method can be done right now. 
 

You can use things like gpu temp or motherboard temp and this can be tempting for something like a rear exhaust fan. However, when you quit cue you’ll lose control as the Commander needs the software to fetch that other data. The native coolant temp or temp probe values do not have that issue. 

[comet91]

c-attack i was reading a post where you said you dont want your coolant over 40C? 

[c-attack]

There may have been some contextual elements in whatever I was saying. There is nothing special about 40C other than that is default 100% fan line in the presets. Nothing happens at 41C. It’s just 1C warmer for your cpu than 40 and 39C is 1 degree less on the cpu. 5 years ago 40C would be pretty warm and slightly unusual. Back then we all had mesh cases and things topped out at 6 cores. Now we have sealed glass boxes and 16 Core CPUs.  The ceiling has shifted a bit.
 

Your environment will play the largest factor in your coolant temp. If it’s 28C in your room, your case ambient will be in the 30s and any kind of gaming load with gpu heat will take you into the 40s. Nothing abnormal about that. In terms of safety, if you hit 50C you need to start asking questions and examine your conditions and setup. Most manufacturers list 60C as their maximum for AIO or custom water cooling. However since coolant temp is also lowest possible cpu temp with no load, anyone at 50-60C coolant is going to have very noticeable problems for ordinary issues.
 

Therein lies the key difference. If your coolant is 30-something at idle and goes up 10C when gaming, then slowly cools off when you’re done, this is normal. It’s changing with the case ambient. If you boot into Windows one day and your coolant instantly skips up to 45C+, that is not normal and not environmental. That suggests a flow issue with the AIO. 

Edited March 18 by c-attack

[comet91]

heres some pick when  gaming

Edited March 18 by comet91

[comet91]

heres one at idle