enough rads?!

[EFD307]

i have a h100 that im thinking of modding to work in a custom build, leave the pump on the cpu, and have another pump just because i have one. but will a 240(h100 rad) mounted on top of case + 120 at back of case + 180 front of case rad be enough to cool a 4770k and a gtx 780 lightning (when its released :3) if i wanted to add another 780 later would that still be enough cooling? the case is a corsair obsidian 650d where can i put more rads? im fine with modding im probably going to have to do some anyway to get that 180 rad in the front.. should i go for it or just hold off and go all out in a new build in a bigger case? 

[AraSarkisyan]

Well the general rule of thumb is for every block on the system, you should have a standard thickness 120mm radiator. So your good. However, I think you should sell your case, and get a used 800d which run around 200 on ebay, that way you can have more than enough space.  

[airdeano]

don't modify  the H100 for a custom loop.. with a dreadful 1.2m head pressure, it

was designed to be used in conjunction with that device. adding more radiators

and blocks defeats the pressure (pressure drop) and then you have "no-flow".

this was learned from the "GPU MOD" to put H50 on GPU and rig a micro-res

and then they'd usually fold due to the lack of any return flow. no pressure.

the internals have micro channels for the coolant to flow through and then to the

cold plate channels, no pressure behind the coolant would not allow the coolant

to flow back into the pump chamber. then dry-run death.

 

sell your case and move to a switch 810 for $150 new.. i wasted three years of

modding to the 800D, you shouldn't have to either.. not worth the mental anguish

and $40 in dremel cut-off disks to have mediocre cooling performance.

 

to mod the 650d to hold 2x GPU under water is insane, not practical and becomes

difficult to work with due to its lack of proper radiator support.

 

airdeano

[EFD307]

don't modify  the H100 for a custom loop.. with a dreadful 1.2m head pressure, it

was designed to be used in conjunction with that device. adding more radiators

and blocks defeats the pressure (pressure drop) and then you have "no-flow".

this was learned from the "GPU MOD" to put H50 on GPU and rig a micro-res

and then they'd usually fold due to the lack of any return flow. no pressure.

the internals have micro channels for the coolant to flow through and then to the

cold plate channels, no pressure behind the coolant would not allow the coolant

to flow back into the pump chamber. then dry-run death.

 

sell your case and move to a switch 810 for $150 new.. i wasted three years of

modding to the 800D, you shouldn't have to either.. not worth the mental anguish

and $40 in dremel cut-off disks to have mediocre cooling performance.

 

to mod the 650d to hold 2x GPU under water is insane, not practical and becomes

difficult to work with due to its lack of proper radiator support.

 

airdeano

i have a second pump to keep the pressure up, and to act as sort of a fail safe. i  wont be selling this case anytime soon, im probably going to buy something huge like a 900d sometime in the distant future and do an awesome build bot for now a poor college kid has to make due with modding and frankenstiening parts together to create something awesome. an alternative is keeping the H100 intact and having a loop for just the card but i dont think thats practical, if im going to start a loop im going to do the gpu and cpu.  if i eliminate the pressure problem with the second pump im not seeing any downside to modding the H100, it just saves me money, one less block and rad.

[airdeano]

adding the second pump will defeat the load, because of the high restriction

of the H100 pump. less than .080" feed and .0005" microchannels.. its not

redundancy if one interferes with the flow action of the other. it'll make the good

pump die sooner due to the restriction(s).

 

if case limited, use the H100 for the CPU and let the GPU remain on air cooling.

the CPU is exceptionally hotter in temperatures than the GPU unless not overclocked.

 

airdeano

[Woodypc]

First as other have said either ditch the h100 of use it as a cpu cooler and make a loop for the gpu with another 240 rad on the bottom, or make a full waterloop with a 240 on the top as well. Do not do loop with the h100 in it.