how many rads do i need for 3 way titan sli and a 3930k

[DakTannon]

right now I have an h220 240 rad with 14 fpi and a single 120mm mcrx20 rad with 20 fpi cooling a 3930k @ 4.6ghz and 3way titan sli on air in  Corsair C70

 

 

 

until recently It was a 2 way sli and all was good but now after adding the 3rd card they are suffocating the active fan on the motherboard that cools the PLX chips and the VRM (both heatsinks are connected by a heat pipe) and the aluminum body of the cards are transferring heat to the south bridge and VRM luckily my push pull configuration when turn to high rpm can pull air through the VRM heat sink fast enough to help out also turn the titan fans to high helps also

 

 

 

 

but this is noisy so I was thinking of switching out the pump/bock for an

 

Apogee Drive II

 

 



 

 

   and the radiators for a Radiator, 1x120mm 30-FPI Copper

 

and 2 Radiator, 2x120mm 30-FPI Copper

 

 

one for the ceiling and one for the basement

 

 

 

 

 

 

both in push pull so do you guys think 5x 120mm wiith 30 fpi will be enough for watercooling 3 way titan sli and a 3930k @ 4.6ghz

[Jogostar]

one 120mm RAD per block is the rule of thumb.

[DakTannon]

cool thanks I was worried cause the 3930k needed at least 2x120mm rad to be cooled properly and I didn't know how much each titan would need

[megadarkwood]

Damn, nice system (Clean it up a bit).

 

On topic, I think that 1x140mm/block will be fine for your case

[Cyrus]

3 titans,  yeah and what the doctor said, get a bigger case.

[skullbringer]

Id say, a surface area of at least 6 x 120 x 60

[Joe3417]

One question. Why do you have 3 titans?

[DakTannon]

if I could find some creative places to put my hdd and ssd I might be able to mount another rad on the front where the drive cage is and a as for as the case size the C70 is the biggest case I can have any bigger and it won't fit in my car and I do take this beast places lol the metal handles was one of the major selling points with I was choosing this case as well as the the all steel construction very sturdy for when I carry it around

this if going to be a 4k gaming rig as soon as they make a small enough 4k monitor that I can carry it with me I am buying one, dell is talking about a 24in and 29in 60 hetz 4k panel I am waiting with baited breath

Damn, nice system (Clean it up a bit).

On topic, I think that 1x140mm/block will be fine for your case

yeah lol still kind of a work in progress as it is I have to rma the ram one stick failed and if I choose to go all water I am gonna clean everything up re do my cable management and make all my tubing runs nice and neat

[DakTannon]

Id say, a surface area of at least 6 x 120 x 60

don't think I can fit 60mm rads in this case that is why I was going for standard thickness 30 FPI rads instead

[skline00]

I would buy a Corsair 900D case and tons of rad space. If you really want to water cool properly with quiet fans I use a formula a poster known as BrightCandle gave to me for rad needed. It is based upon 120mm rad space with a fan running at 800rpm to achieve a 10 Degree delta. The numerator is total thermal output and the denominator is 130. the product = the number of 120mm rads needed. I have a 3930k OC'd to 4.4Ghz (@200Watts max) plus 2 GTX670FTWs water cooled and OC'd (@200Watts each max). the calculation is 600/130=5 rad spaces. I'm using a XSPC RX360 + a XSPC EX360. I'm using a CM 932 Advanced case so I externally mounted the EX360. My system runs cool.

Let's turn to yours. A 3930k @4.6 Ghz is pushing 225Watts easy. The Titans are 250Watts each max? 225+750=975. 975/130= 7 rad spaces minimum. Just my 2 cents but to do a quality water cooled job you are going to need more radiator space to properly cool.

[TheEpicCanadian]

I would buy a Corsair 900D case and tons of rad space. If you really want to water cool properly with quiet fans I use a formula a poster known as BrightCandle gave to me for rad needed. It is based upon 120mm rad space with a fan running at 800rpm to achieve a 10 Degree delta. The numerator is total thermal output and the denominator is 130. the product = the number of 120mm rads needed. I have a 3930k OC'd to 4.4Ghz (@200Watts max) plus 2 GTX670FTWs water cooled and OC'd (@200Watts each max). the calculation is 600/130=5 rad spaces. I'm using a XSPC RX360 + a XSPC EX360. I'm using a CM 932 Advanced case so I externally mounted the EX360. My system runs cool.

Let's turn to yours. A 3930k @4.6 Ghz is pushing 225Watts easy. The Titans are 250Watts each max? 225+750=975. 975/130= 7 rad spaces minimum. Just my 2 cents but to do a quality water cooled job you are going to need more radiator space to properly cool. He said that he likes to take his computer places so I dont thinkva case that's 2x as big and doesnt have handles?

 He said that he likes to take his computer places so I dont think a case that's 2x as big and doesnt have handles would be very useful to him. 

[skullbringer]

don't think I can fit 60mm rads in this case that is why I was going for standard thickness 30 FPI rads instead

 

well, yeah, then you might need to think about getting a bigger case. I mean you could do 6 x 120 x 45 or 7 x 140 x 30, but I assume it wouldnt fit in your current case

[warmmilk]

don't think I can fit 60mm rads in this case that is why I was going for standard thickness 30 FPI rads instead

 

if you can fit standard thick (assuming you mean 30mm) with push pull like you said in your first post, then you can fit a 60mm in push or pull.  unless you want to run your fans at really low rpm, you'll gain more out of going to a 60mm rad over a push/pull setup on a 30mm rad.

 

On the otherhand, if switching cases is an option, a CaseLabs SM8 is only a few inch's bigger than the C70 (and a lot smaller than a 900D) and can fit all the rad's you need.  And its all metal as you mentioned that was an issue.  Its pretty expensive, but you have 3 Titans and are planning on getting a 4k panel as soon as its available so that doesn't seam to be an issue for you.  You'd also have space for a real pump in an SM8 and not the cpu mounted apogee thing...

[DakTannon]

It's not a money thing I just really love the C70 so changing cases is kinda out I would put up with the noise for the style and functionality of the case I just wanted to know if it was even possible to run 3930k and 3 titans with 5-6 120mm x 30 mm rads with 4 rads in push pull but I wanted to buy those rads and the apogee anyway cause I had to rma the h220 pump already and the rads are an ugly shade of brown compared to the rest of the black in the build and the paint chips really bad for no reason and as far as switching to 60mm rads I wanted to do that originally but there is no way the single 120 is in pull only and is 34mm and it is only a few mm from the ram and the ceiling rad is 29.7mm with the fans being 25mm each it is 79.7mm total your suggestion would be 85mm and it is sooooooo close to the ram VRM 2mm max from the heat sink that and so close to the ram less than 1mm I have to remove the rad to take out the ram and I had to Dremel the fan to get it past the ATX cable lol the close up pic of the fan let's you know how tight that is if you look close at it

[DakTannon]

If worse comes to worse I will get a VRM water block and a Southbridge water block

[atomicmonkey101]

as much as you can get into your case and also as thick as you can get.

[DakTannon]

well I decided to screw the water cooling too much work and investment and not enough info as to whether or not it will help me achive my goal so I made a custom lexan  window and cut a hole for a 120mm in the right place (COSAIR sure as hell didn't know where to put it where it would do any good) lol and it lowered the southbridge temps as well as the temps of the 2 titans that have their intakes blocked by their neighbors so good enough for now

[Artem]

120mm of rad space per block would be the BARE MINIMUM, and I doubt that with just a 360 you would be able to maintain your current cpu oc. I say 360x60/480x60 and a 240x60 would be what you want.

[DakTannon]

I mounted a pwm delta fan on b the side panel to blow air on the Southbridge works great and helps cool the titans also win win for 40 bucks and with pwm I can turn down to like 800 rpm but when temps rise speed fan can crank it as high as necessary

[Monty007]

how about a completely external rad setup?  With quick disconnect hoses to making the moving around part easier.  I personally would look at the new case.  I have both the c70 and the 900d.  I love the C70 but it is not built to house all that rad space.   So I have seen some rads that are like 120 x 9 that some people have setup externally.  

[DakTannon]

I will probably buy a 900D for may next build one that can just stay in my room how do you like it btw

[Monty007]

I will probably buy a 900D for may next build one that can just stay in my room how do you like it btw

Absolutely love it. Making some changes shortly and adding another quad. Best case I have owned.

[DakTannon]

Here is how it looks now that I added an extra 240 rad for the cpu and the 4th titan for a 4way sli setup






and here is how it looks with the lexan window with a hole cut for my 120mm delta 4000 rpm 150cfm pwm fan controlled by speed fan linked to the gpu in the first slot as well as the Southbridge temps (got some light scratches from wiping off finger prints gonna try headlight restore)

 

 

Edited July 3, 2014 by DakTannon

[gramzon]

Wow.... and I thought my PC was a beast... it's a little mouse compared to yours lol!

[DakTannon]

Lol thanks I appreciate it it took me more than a year and a half to build and tune it to run flawlessly