WC air flow help

Nickolp1974 · 5 Sep 2013 at 06:55

getting my watercooling ready for gpu blocks and need any ideas about air flow.
the gpu's will be aircooled in the meantime for 3-4 weeks(hopefully no longer)

have about 15mm between bottom rad and gpu

Front-push
bottom-push
top-push

what do you think

ubersonic · 5 Sep 2013 at 09:50

Looks good.

Bluntwrapped · 5 Sep 2013 at 13:31

Yep looks fine man

Something Else · 5 Sep 2013 at 22:17

yep feeding air directly to the gpus from two directions is the best way really.

Nickolp1974 · 5 Sep 2013 at 22:20

Thx guys, gonna be interesting setting this up tomorrow, will be a tight squeeze!! Wish i had the classy blocks, c'mon EK get a move on

alex_123_fra · 5 Sep 2013 at 23:30

Using a similar setup but without a rad on the bottom and push/pull at the top. I found the rear fan does better as an intake and the exhaust fans are essentially the top rad fans. Reduced case temps by around 2-3C for me over having the rear fan as exhaust.

Uncle Petey · 6 Sep 2013 at 14:48

I had the same setup but without the bottom rad.
I didn't like the way that the heat from the front rad basically got fed into the top rad, which kind of defeated the object.

Ended up changing the front rad to exhaust and the rear case fan to a filtered intake. This will draw in a little more dust due to the negative pressure though (front rad is push/pull in my case).

Not sure that you really need an additional 240 at the bottom tbh.

Nickolp1974 · 6 Sep 2013 at 17:01

Uncle Petey said:
Not sure that you really need an additional 240 at the bottom tbh.

need it for when i get gpu waterblocks, the classy's pump out some serious heat, and i have an EVBOT

and besides pete, i cant get monsta's in!!!!

the 240 in the bottom did not fit, need to cut out the bottom 2 pci slots to make it happen also need some very low profile 90's, presuming barbs?? i'm on 16/11 tubing if anyone can suggest anything, i'm using the blood reds.

Uncle Petey · 6 Sep 2013 at 17:10

Check this for the difference between AX and Monsta's.

Not a lot in it

With that bottom rad in place and the front rad rad on intake, you'll be filling the case with heat that'll have nowhere to go but up through the top 240, with only some of it removed by the rear exhaust.

Nickolp1974 · 6 Sep 2013 at 17:14

may like suggested earlier switch the rear to intake and put the bottom's on pull/exhaust, possibly help???

Nickolp1974 · 6 Sep 2013 at 17:15

how it looks at mo, go my hole cut for the bottom, ready

Uncle Petey · 6 Sep 2013 at 17:27

I'd try a few different things.

A) Place filtered intake fans (no rad) at the bottom and switch the rear fan to intake (filtered) and the 360 to exhaust

B) Keep the 360 as is and put the top rad at the bottom and run it as intake. Just have case exhaust fans up top and rear.

C) Or do as you suggested and have the bottom rad exhausting with the rear fan on intake.

Oh, and you might want to avoid running the e-loops in pull. They squeal like pigs apparently.

alex_123_fra · 6 Sep 2013 at 18:55

Nickolp1974 said:
need it for when i get gpu waterblocks, the classy's pump out some serious heat, and i have an EVBOT
and besides pete, i cant get monsta's in!!!!

the 240 in the bottom did not fit, need to cut out the bottom 2 pci slots to make it happen also need some very low profile 90's, presuming barbs?? i'm on 16/11 tubing if anyone can suggest anything, i'm using the blood reds.

My suggestion is that you will not be heat limited on the GPUs without a 240 at the bottom. It simply doesn't need it in my rig at all. With modded bioses on my 780s and 1.325V at max overclocks at 1300MHz+ core on both GPUs they are pushing out max 38C in the current hot ambients (in serial). You will not be GPU heat limited (certainly not if you use EK blocks). This is with a 3930 at near enough 5 GHz while benching (max temp 65C again in the hot ambients at 1.4V, all cooled with an AX240 and an AX360).

Uncle Petey · 6 Sep 2013 at 19:02

Yeah, 360/240 is usually plenty good enough for dual gpu's afaik.

Gregster · 6 Sep 2013 at 19:25

I ran a 360+240 with SLI 680 Lightnings @ 1.5ish volts and a 3930K at 1.5volts and those rads were more than enough to cope.

Looking good as well Nick

Nickolp1974 · 6 Sep 2013 at 21:42

alex_123_fra said:
My suggestion is that you will not be heat limited on the GPUs without a 240 at the bottom. It simply doesn't need it in my rig at all. With modded bioses on my 780s and 1.325V at max overclocks at 1300MHz+ core on both GPUs they are pushing out max 38C in the current hot ambients (in serial). You will not be GPU heat limited (certainly not if you use EK blocks). This is with a 3930 at near enough 5 GHz while benching (max temp 65C again in the hot ambients at 1.4V, all cooled with an AX240 and an AX360).

Thanks for the info, much appreciated, but got the other rad already, so somehow its going in!!

Gregster said:
I ran a 360+240 with SLI 680 Lightnings @ 1.5ish volts and a 3930K at 1.5volts and those rads were more than enough to cope.

Looking good as well Nick

Thank you Gregster

Hakanese · 6 Sep 2013 at 21:55

You just want that 3rd rad installed on principle now don't ya?
Will be interesting to see if it really makes a significant difference to your temps.
But damn the inside of your case looks sweet as is.

Nickolp1974 · 6 Sep 2013 at 22:04

Hakanese said:
You just want that 3rd rad installed on principle now don't ya?
Will be interesting to see if it really makes a significant difference to your temps.
But damn the inside of your case looks sweet as is.

Yep its going in!, doubt it will do much too temps, but thats not always the point.

And thx again,

Edit: anyway cut a big hole now, so gotta fill it!

Meoricin · 7 Sep 2013 at 22:37

Where is your PSU?

Nickolp1974 · 7 Sep 2013 at 22:48

Meoricin said:
Where is your PSU?

Its changed since this pic, but its below the pump