WC PSU

faceman123 said:
Hi,

I am planning on a major overkill wc project, is a 1200w p2 enough for -

4 x 480mm rads
2 pumps and 16 fans
vega Vii
and 9900k both overclocked
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I powered a threadripper 180w tdp, radeon 7 and 1x vega 56 l, 1x rx570 and 1x rx 560 plus four hdds and an nvme off of a seasonic 860w platinum. 1200 watt is going to be fine.
 
faceman123 said:
Sorry is this with wc?
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No AIOs but please explain why that makes a difference? A d5 has to be 25w difference overhead max other than that being water cooled makes no difference to power draw, in fact the hotter components are the more power they draw so as such the net effect is likely 0.

My guess and this will be pretty close is that under complete load, so cpu and gpu, the system you mention pulls less than 700w at the wall.
 
Vince said:
No AIOs but please explain why that makes a difference? A d5 has to be 25w difference overhead max other than that being water cooled makes no difference to power draw, in fact the hotter components are the more power they draw so as such the net effect is likely 0.
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Thank you, some trolls on reddit convinced me anything less than 1600 was nuts.... Got told a pump uses 250w.... Thanks(just checked this)
 
faceman123 said:
Thank you, some trolls on reddit convinced me anything less than 1600 was nuts.... Got told a pump uses 250w.... Thanks(just checked this)
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No worries dude, I'd trust my 860 seasonic on that system without even thinking about it. You will have something like 40% overhead on a 1200w supply.

I did check and a d5 at full chat is 37w which is tiny in the scheme of things.
 
The only other consideration is that with water-cooling comes lower temps which potentially allows higher clocks which draws more power. Always best to overegg the PSU if you can but the pumps and fans in watercooling are not the reason alone.
 
MikeTimbers said:
The only other consideration is that with water-cooling comes lower temps which potentially allows higher clocks which draws more power. Always best to overegg the PSU if you can but the pumps and fans in watercooling are not the reason alone.
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Yea but even if you say real world power draw of an overclocked 9900k is 170w under water, 7 as 300w unless your also powering a rocket ship you don't need 1200w. 37w for a pump, and then say chipset and drives 100w max which is massive overkill. I bet you a load of money that system never sees 700w at the wall.
 
250W to power a pump? :D

I use a 250W pump... for the pond. Moves something like 18,000 litres an hour.

Got to love Reddit some times.
 
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