Delta Temps

eggcup

eggcup

eggcup

Associate
Joined
16 Jun 2006
Posts
2,217
Location
Bournemouth, Dorset
Im having a "Debate" on Facebook about the difference in ambient temps and a loop under full load, Mine must be at least 20 degrees but mine is in a mini itx case. Im just wondering what everyone else's temps are compared to ambient?

The people im debating say their temps only go up 5 degrees under full load.
 
Last edited:
I put my loop together last night, dual 1080's and a 6700k. I'm getting around 55oC under load (playing rainbow six siege) after an hour. Room temp is about 25 right now. I was hoping for better.
 
its all down to how much rad space you have to shift the heat.

I use 2 x 480 & 1 x 240 to keep mine down but you need a big ass case to do that.

how much rad space do you have?
 
Mine is similar to ploppy's, just a tad warmer. Ambient temp in my room usually hovers around 27-28 degrees and the cpu/gpu hover around 45 degrees. The problem is that whilst the room ambient is 28, the case internal ambient is around 35. At idle, the room is around 24-25 and the case temp is around 28-30.

Spec:
4820K + koolance block
GTX780 + EK block
480 + 240mm XT45 copper rads (6x AP15's cooling)
D5 vario on 2
all housed in an enthoo primo
 
I have my delta set for 10 degrees where everything ramps up quite high but not full. 5 degrees is pretty much everything but one rad off. So while playing it hovers around 8 degrees. In some games that's really quiet others like the Division that really kick the system ramps the fans up, but not to a level that's annoying. The Aquero is great for sorting it all out for me. :)

Running an I5 @ 4.5 and 2 overclocked 780ti's can generate a lot of heat. :)
 
About 12 degrees with my fans at around 1000rpm pretty quiet at those speeds.At 800rpm it's around 14c delta which is near inaudible.Using 5 noctua f12s as intakes on my rads,a 240 and 360 both 20fpi.
 
eggcup said:
Im having a "Debate" on Facebook about the difference in ambient temps and a loop under full load, Mine must be at least 20 degrees but mine is in a mini itx case. Im just wondering what everyone else's temps are compared to ambient?

The people im debating say their temps only go up 5 degrees under full load.
Click to expand...

Thats entirely possible, just depends on what they're cooling and how much rad space they're using to cool it along with fan config.

Generally speaking, if you have a 5c deltaT your running a large amount of rad space, like multiple 480s.
 
Mine maxes at 12 degrees under VERY heavy load (i.e. boinc CPU and GPU based clients).

That's cooling 3 x gtx970 and an i7 3930k all heavily overclocked.

I am running 1 x560 and 1 x480 rad though and both fans and pump ramp up based on delta (pump doesn't start climbing until temps getting to the higher end).

Usual gaming delta is about 9 degrees.

As other have said, depends entirely on factors like radiator capacity, pump speed, fan speed, how many components cooled etc.

I'd be suprised to see 5 degree delta, but it is possible... Just tried running my fans and pumps at 100% under full load and was able to hold a 8 degree delta. Wouldn't normally run it like that as its noisy though.

E-I
 
I let mine get up to 15c

I could easily get that down, but I prefer quiet :D

Thats with 2x 280 rads cooling an overclocked 4790k and a 290x
 
I worry about max temp over delta, in winter a 25 degree delta could be fine, in summer a 15 degree delta might be too much. I think for most people using central heating would be after a 10-15 degree delta at room temperature. If your deaf so you dont mine full speed fans then go for under 5 degrees :)
 
BluD said:
I worry about max temp over delta, in winter a 25 degree delta could be fine, in summer a 15 degree delta might be too much. I think for most people using central heating would be after a 10-15 degree delta at room temperature. If your deaf so you dont mine full speed fans then go for under 5 degrees :)
Click to expand...

Problem with that is you don't have much control over max water temp. if you controlled your fans according to water temps, then your fans are going to be going absolutely crazy in the summer, whilst doing nothing at all in the winter. As discussed in this thread, a 10c delta is normal, so a 8c swing in ambient temps would completely destroy any temp curve and make it impossible to achieve silence at idle on hot days without ruining cooling capacity during the cooler days.
 
You can control your water temps by using your GPU temps, find out what the delta is between your GPU and your water temp then use the GPU sensor to control the fans. Everyones fans run faster in summer unless theyre controlling their room temp through aircon/heating or lowering clock speeds, you set your fan curve to a tolerant level according to summer temps then in winter its just silent for a lot longer.

Im not sure how you set your fans up but it works a treat for me.
 
BluD said:
You can control your water temps by using your GPU temps, find out what the delta is between your GPU and your water temp then use the GPU sensor to control the fans. Everyones fans run faster in summer unless theyre controlling their room temp through aircon/heating or lowering clock speeds, you set your fan curve to a tolerant level according to summer temps then in winter its just silent for a lot longer.

Im not sure how you set your fans up but it works a treat for me.
Click to expand...

my fans dont run faster in summer

In winter, my load temps are around 50c CPU and 35c GPU, in summer they are around 55c CPU and 40c GPU. The fans reach about 550RPM after extending gaming giving me about a 15c delta both summer or winter, and the fans turn completely off for 100% silence during low load until I reach a 8c delta

I could set it up how you describe, but I dont think it would be advantageous to do so. 5c here or there really doesn't matter when temps are great either way either summer or winter, but +/- 200 RPM summer or winter would be a big difference to the noise levels, and would not be an acceptable trade off for me.

Obviously you are happy with doing it the way you do it, and I respect that, and it takes a bit of extra equipment and thus money to set it up my way so its not for everyone I guess.
 
Sounds like your doing a fantastic job of controlling your room temp or down clocking in summer, last winter my computer room temps hit 15 degrees, this summer they hit 35+ so obviously its gonna have a bigger effect so my fans are there to compensate. I used to have air-con running all year round to keep minimal temp changes like your self but i cant afford to keep the electric bills so high anymore and theres no way im reducing clock speeds :)

Still like i said i just set things up so im happy with the noise level in summer which im only talking 800rpm then in winter they all just turn off a lot of the time.
 
Ha yea it was very hot this summer, must have been 30+ out side somedays then ya add people and electrical equipment to that. I do miss my air-con. :(

Was hotter down south, i went down to london for a weekend and it was like 34, the train was like an oven all the way down, they had to give out free bottled water so we didnt all start dropping dead :)
 
Last edited:
You must log in or register to reply here.
Back
Top Bottom