Corsair 780t cooling

joey117

New member
I bought a Corsair 7800t i plan to put one 360m x 80mm thick rad in the roof and a 360mm v 45mm rad in the front will it cool :

Asus rampage extreme
Intel i7 3930k 2011
r9 290x x 3

All part will be over clocked + would i need to go thick on the front rad ?
 
Cooling is overkill for it tbh matey - but "will it cool" just got you a n000b badge because it all depends how cool or how quiet you want it to be tbh.

I think you need to watch my review re: rad sizes too
 
The thickness of a radiator has a far less significant effect than the frontal area, plus in general thick radiators have a lower FPI so the cooling area is effectively very similar. Size and fan speed are the big factors as TTL was implying. (I think he probably missed the 'x3' after 290X though ;))

The 80mm radiator in the roof will give you some clearance issues, there's 90mm of room up there so once you take off a set of fans (25mm) that really only leaves you with room for a 60mm.

Logically the next thing to do is estimate the heat load from your components (which is basically the sum of the TDP (watts)) and from that compare it to the heat dissipation of a similar radiator at a fan speed you are happy with and then see if your delta T's will be acceptable. If they are too high ie. 15°C+ then you'll have to start thinking about how you can fit more radiators or increase the fan speed. There are quite a number of variables and it's all about finding the right balance. ;)


I'm running two 780 Classy's and a 4820k with a pair of 360's both with push/pull fans, for daily use I run all 13 fans at 650RPM and generally in game get load temps around the 60°C mark but it's uber quiet. When overclocking which I only really do when benchmarking the Classy's will draw insane wattage, probably a total heat load of around 800watts so I generally knock the fan speed up to around 1000RPM to keep them chilly. I'd say it's very close to the right amount of rad space, for the setup, for me. I definitely wouldn't want less.

Just remember most watercooling pumps dissipate their heat into the loop, while it's not a big factor at the side of 3 graphics cards they need a respectable coolant temperature to keep themselves from frazzling. Anyway to me it sounds like your pretty close to the money but if you want it to be uber quiet all of the time then even more radiator area is the way to go.

JR
 
Last edited:
Even with 2x 360's he would be fine - thick rads need push pull (Like Orca)

2x 360's should give him a silent loop if he sets it up right - if he spends more on rads (dont use 120 singles or Ill call you gay) hes into the territor of expensive cases etc and then he may aswell just think about spending insane money on everything else.

The D5 pump is ample for your needs - the DDC is the only one that has heat issues.
 
TTL : I have watched you rad video and for my noob badge thanks because it is right , completely new to water cooling and for 'will it cool' you can thank my dyslexia for the incomplete sentences etc etc etc .

And for the rad i was hoping it would be overkill i do not want to hear the computer at all , and thanks to everyone that left comment and advise
 
TTL : I have watched you rad video and for my noob badge thanks because it is right , completely new to water cooling and for 'will it cool' you can thank my dyslexia for the incomplete sentences etc etc etc .

And for the rad i was hoping it would be overkill i do not want to hear the computer at all , and thanks to everyone that left comment and advise

Stick with the rad advise above and now concentrate on fans - no matter what you buy though you will need fan speed reducers or a fan controller.

It can be done with a bit of effort though - Ive got a very similar config in Orca and shes VERY quiet
 
Fans i have got of it are noctua nf-f12 pwn and the fan controller i am looking at is the corsair link commander but i am not sure about it at the min
 
Fans i have got of it are noctua nf-f12 pwn and the fan controller i am looking at is the corsair link commander but i am not sure about it at the min

I have the Corsair Commander Mini, just because I like to have everything in the same place (Corsair Link).
I haven't fully set it up yet... but I played around with it some, fans speeds etc and it worked really well. Even though I'm completely new to this fan controlling stuff, I was very impressed of how well it did by reducing the fans speeds.

Hope that helped you somewhat :)
 
Back
Top