[Nottingham] Water cooled CPUs - worthwhile?

[Sergiusz Pawlowicz]

On Thu, Aug 20, 2009 at 23:00, Jim Moore<jmthelostpacket at googlemail.com> wrote:
> my brother put together a custom PC  build using convection pumping -
> no pump or other moving parts,- and his PC ended up totally quiet; the
> hard drives were attached to heatsinks and then  enclosed in packing
> foam, he had a custom brass CPU block made with  a built-in Peltier
> HTU, the whole lot feeding from a 500cc reserve tank. Didn't get any
> overclocking done, but what he ended up with was enough spare power to
>  run a few CCT units dotted around the case and a pretty awesome
> blacklight effect in the  tank itself (and the clear acrylic tubing)
> by doping the water with Indian ink.and lighting with ultraviolet
> tubes. The temperature in the reserve tank only ever got around 4C
> above ambient,  and to my knowledge the kit  still works after nearly
> five years. I saw it a couple  times, and when I say it was quiet, it
> didn't even register on my Sennheiser flyspeck tieclip mike and
> Audacity with the  gain turned full-on.
>
> Shop kits usually come with a pump, but if you really find you need
> one of these, best of fto switch this out for an aquarium pump,
> they're far quieter.

afaik peltier must suck as much energy as it drains, so at the end we
have twice more heat to coo down. i cannot see any reason to use it
until you want to overclock a cpu.

i still do not know how to cool down water without a fan.

s.