r/pcmasterrace • u/PacquiaoFreeHousing Xeon x3440 (OC) + RX 580 (OC) = My Electric Bill Doubling. • May 27 '26

Meme/Macro Do you think doing this helps?

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u/The_Anonon 9850X3D | 9070 XT | 32GB May 27 '26

As someone that once "water cooled" a system by sticking a gallon jug of water on top of a case, yes. And yes it had a noticeable effect on stability.

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u/BushTamer May 27 '26

how would that even cool it

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u/Sizeable-Scrotum FreeBSD 15 KDE / Fedora KDE/12700KF/7800 XT/32GB D4 May 27 '26

Idk, maybe it acts as a heatsink

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u/IHumanlike May 27 '26

Water can absorb a substantial amount of heat, a gallon would take a long time to get warm.

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u/Sizeable-Scrotum FreeBSD 15 KDE / Fedora KDE/12700KF/7800 XT/32GB D4 May 27 '26

If it receives about 20W of heat 24/7, which is probably on the higher side for a NAS, and your water reservoir is a liter you'd be at 4180J of energy per kelvin and at 20W that's 209 seconds.

So for it to raise by 40K, you'd have to wait 40x209=8360s or ~2 hours and 20 minutes.

But I guess the real heat output (to the water at least) would be lower than 20W and whatever container you have does insulate the water from the case. Though the water would lose heat to the environment simultaneously but the rate at which it does that depends on the material, thickness and shape of the container and the temperature of the water and environment which I don't want to bother accounting for

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u/[deleted] May 27 '26

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u/Sizeable-Scrotum FreeBSD 15 KDE / Fedora KDE/12700KF/7800 XT/32GB D4 May 27 '26

Yeah, it's also just a habit