By: David Hess (davidwhess.delete@this.gmail.com), August 13, 2019 12:51 pm
Room: Moderated Discussions
Gian-Carlo Pascutto (gcp.delete@this.sjeng.org) on August 13, 2019 6:00 am wrote:
>
> You run into silly problems:
>
> a) Mainboards that will always peg to 100% fan if the CPU hits a certain temperature. This
> is completely pointless as modern CPUs of course just downclock if they get near thermal
> limits. I had this problem with Gigabyte mainboards. Of course this is the kind of thing
> you never find in a review, but instantly makes the mainboard useless for purpose.[/quote]
I cannot say that I have ever had that problem but for good reason. Operation of the CPU at the thermal throttling temperature is not conducive to reliable operation so I have never allowed it. If the peak temperature is above about 65C Tj, then the heat sink is not large enough.
As far as the noise from the CPU fan, unless it is a small whiny one, its noise should be insignificant even at high speed because it is naturally mechanically well isolated from the case which also shields it.
> b) Resonance issues like a certain HDD at a certain workload, or worse, the
> AIO pump at a certain workload resonating with the case. Not much to do about
> it but it takes time to track down and figure out a solution for.
I wish mechanically isolated hard drive mounts had better availability. Too many cases do not include them as a standard feature.
> c) GPU reviews tend to be completely unreliable with noise measurements. They often claim that cards are silent
> when they're in fact very loud at full load.
Even more often, they leave out temperature measurements. As above with CPUs but even more so, my experience is that GPUs which operate above 65C Tj have poor reliability.
> In the video you can see him explain that other, very logical, setups of the fans made a large
> difference in the total sound output. So you have to be willing to spend quite some time to
> experiment with this as well. I'm a bit surprised at the choice of AIO but I guess it's due
> to the very high 250W TDP of the TR. For a 105W 3900X or 3950X air might work better. But AIO
> often makes the cable and airflow handling easier That's always a tricky choice.
Baffles to direct airflow are even more effective than an excess of case fans. If you go this route, it pays to have several probe type temperature sensors to objectively measure the results of various baffle configurations. I am not sure it is possible to have too many thermocouple probes in your collection of test instruments.
>
> You run into silly problems:
>
> a) Mainboards that will always peg to 100% fan if the CPU hits a certain temperature. This
> is completely pointless as modern CPUs of course just downclock if they get near thermal
> limits. I had this problem with Gigabyte mainboards. Of course this is the kind of thing
> you never find in a review, but instantly makes the mainboard useless for purpose.[/quote]
I cannot say that I have ever had that problem but for good reason. Operation of the CPU at the thermal throttling temperature is not conducive to reliable operation so I have never allowed it. If the peak temperature is above about 65C Tj, then the heat sink is not large enough.
As far as the noise from the CPU fan, unless it is a small whiny one, its noise should be insignificant even at high speed because it is naturally mechanically well isolated from the case which also shields it.
> b) Resonance issues like a certain HDD at a certain workload, or worse, the
> AIO pump at a certain workload resonating with the case. Not much to do about
> it but it takes time to track down and figure out a solution for.
I wish mechanically isolated hard drive mounts had better availability. Too many cases do not include them as a standard feature.
> c) GPU reviews tend to be completely unreliable with noise measurements. They often claim that cards are silent
> when they're in fact very loud at full load.
Even more often, they leave out temperature measurements. As above with CPUs but even more so, my experience is that GPUs which operate above 65C Tj have poor reliability.
> In the video you can see him explain that other, very logical, setups of the fans made a large
> difference in the total sound output. So you have to be willing to spend quite some time to
> experiment with this as well. I'm a bit surprised at the choice of AIO but I guess it's due
> to the very high 250W TDP of the TR. For a 105W 3900X or 3950X air might work better. But AIO
> often makes the cable and airflow handling easier That's always a tricky choice.
Baffles to direct airflow are even more effective than an excess of case fans. If you go this route, it pays to have several probe type temperature sensors to objectively measure the results of various baffle configurations. I am not sure it is possible to have too many thermocouple probes in your collection of test instruments.
