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> It seems like you definitely need at least an AIO watercooler There is another problem with watercooling, which is that once the water warms up (which it wil

by dijit 4y ago

> It seems like you definitely need at least an AIO watercooler There is another problem with watercooling, which is that once the water warms up (which it will under sustained loads) your CPU temperature will begin to climb. Then it becomes a game of "do I have thermal mass enough to run my job before throttling", and often it can be the case that radiators are unable to effectively cool down the CPU; but the additional water becomes thermal capacity; sometimes giving the appearance of better cooling when in actuality your system will throttle after 10 minutes of work. Your heatsink is one of the better ones, an NHD-15 might be better but only slightly, after which point: I don't think it can be expected to cool a CPU at a sustained load with any AIO system, even the triple fan ones. I'm probably not communicating this terribly well, I went down this rabbit hole when I was watercooling my old GPU and CPU in a custom loop by EK, I ended up discovering that if I wanted to do sustained work (which I did) then a direct airflow system would have worked better, so I ripped out the loop and it did work better for sustained loads.

omni 4y ago
> sometimes giving the appearance of better cooling when in actuality your system will throttle after 10 minutes of work. If it throttles after 10 minutes instead of after 20 seconds, that is in fact better cooling. The higher thermal mass is one of the major benefits of water cooling over air cooling for this reason.
- devnullbrain 4y ago
  It's a pretty useless quality for a gaming PC.
  - fomine3 4y ago
    No game continue utilizing CPU at 100%
gpapilion 4y ago
Basically it sounds like your water cooling system was undersized. You didn’t have a good method to cool the water, so you just built up heat in your working fluid. The air did a better job because it was open. So you average initial temp was higher but could be sustained, because you always had cool air. If you had a radiator with a fan it’s like the water solution would have still worked better.
- dijit 4y ago
  i understand how you can come to that conclusion, but it was really oversized for what it was cooling. 2x 240mm rads 1x pump 1x 80mm reservoir the gpu was a AMD firepro K2000 (not a epic GPU by any standards) the cpu was a i7-4930k, which is pretty paltry by todays cooling standards.
  - cellularmitosis 4y ago
    It sounds like it subjectively _felt_ oversized, but objectively, it was undersized
csomar 4y ago
Back at home, I had my water-cooling fans just in front of the air-conditioner. Yeah, I know not the most efficient type of cooling but I definitively saw some difference. Before that, during a 6-8 hours continuous gaming episode, I could definitively feel my legs warming up (computer was below the desk) and game performance taking a bit of a hit. I think the best setup would be ice cylinders. You put 3-4 packs of ice cylinders that hold good amount of ice in the fridge. Then you plug them into your watercooling loop to cool the water. Probably someone is working (or did work) on a setup like that.
wincy 4y ago
The top overclocker right now isn’t even using water cooling, he’s using The Ice Giant coolers which uses a thermosiphon with fans to cool the CPU. They’re chunky and can only work if your motherboard is sideways or flat on the ground (otherwise it messes up the tech), but they’re really excellent, with no risk of water damage like a loop would have.

by dijit 4y ago

omni 4y ago

> sometimes giving the appearance of better cooling when in actuality your system will throttle after 10 minutes of work. If it throttles after 10 minutes instead of after 20 seconds, that is in fact better cooling. The higher thermal mass is one of the major benefits of water cooling over air cooling for this reason.

devnullbrain 4y ago
It's a pretty useless quality for a gaming PC.
- fomine3 4y ago
  No game continue utilizing CPU at 100%

gpapilion 4y ago

Basically it sounds like your water cooling system was undersized. You didn’t have a good method to cool the water, so you just built up heat in your working fluid. The air did a better job because it was open. So you average initial temp was higher but could be sustained, because you always had cool air. If you had a radiator with a fan it’s like the water solution would have still worked better.

dijit 4y ago
i understand how you can come to that conclusion, but it was really oversized for what it was cooling. 2x 240mm rads 1x pump 1x 80mm reservoir the gpu was a AMD firepro K2000 (not a epic GPU by any standards) the cpu was a i7-4930k, which is pretty paltry by todays cooling standards.
- cellularmitosis 4y ago
  It sounds like it subjectively _felt_ oversized, but objectively, it was undersized

csomar 4y ago

Back at home, I had my water-cooling fans just in front of the air-conditioner. Yeah, I know not the most efficient type of cooling but I definitively saw some difference. Before that, during a 6-8 hours continuous gaming episode, I could definitively feel my legs warming up (computer was below the desk) and game performance taking a bit of a hit. I think the best setup would be ice cylinders. You put 3-4 packs of ice cylinders that hold good amount of ice in the fridge. Then you plug them into your watercooling loop to cool the water. Probably someone is working (or did work) on a setup like that.

wincy 4y ago

The top overclocker right now isn’t even using water cooling, he’s using The Ice Giant coolers which uses a thermosiphon with fans to cool the CPU. They’re chunky and can only work if your motherboard is sideways or flat on the ground (otherwise it messes up the tech), but they’re really excellent, with no risk of water damage like a loop would have.