Still too noisy, need more rads!

diogenese · 22 Dec 2013 at 11:41

Got my rig into a new case with bigger rads and two loops, but my GPU temps are higher

I think I'm losing it by having excess on the CPU rad and not enough on the GPU'S so do you think adding another 140 rad to the rear wall between the 660's and the Titan will sort it?
It get's used for distributed computing and is running flat stick 24x7.

Old ghetto setup

New switch 810 case with a thicker 420 rad in the top.

Oh, I do have a 30 degree elbow coming for the top rad, but that will be in the new year

OLDPHART · 22 Dec 2013 at 11:49

How have set up the air flow in the case?

diogenese · 22 Dec 2013 at 11:51

front fans blowing in, rear fan in and top fans up.
ther is a gap above the rear 140 fan and there is no airflow in or out, i tested it with a piece of tinsel!

diogenese · 22 Dec 2013 at 11:54

I suppose the GPU rad is now getting warmer air than before.

OLDPHART · 22 Dec 2013 at 12:02

Right with the front bottom fans blown hot air into the case the top fans blowing out, you are heating up the inside of the case. All the hot air is going through your top rad even though you have a fan pulling cool air in.

Change the bottom front fans so the hot air is being sucked out the front of the case, leave the other fans as they are. As l say the way it is now its heating your case up.

Jokester · 22 Dec 2013 at 12:05

Should really keep it to a single loop, even if you have two pumps in series as it'll avoid an imbalance between radiator capacity in individual loops.

OLDPHART · 22 Dec 2013 at 12:05

Can you fit a side panel fan? if so fit one to pull cool air into the case.

OLDPHART · 22 Dec 2013 at 12:06

Jokester said:
Should really keep it to a single loop, even if you have two pumps in series as it'll avoid an imbalance between radiator capacity in individual loops.

Well spotted J +1.

diogenese · 22 Dec 2013 at 12:08

But then I'll have 5 140 fans sucking out and only one in, though I suppose there's vents in the base and around the backplane to let more cold air in. I'll give it a try tomorrow, it's bedtime here!

diogenese · 22 Dec 2013 at 12:10

It was all in one loop before. I'll have to rethink my plumbing.

gary996 · 22 Dec 2013 at 12:33

You need to have your fans set so more are pulling air into the case than out, what fans are you using? You could have used a far thicker rad in the front as you have plenty of room. Oh and 1 loop as been said

TAZOO7 · 22 Dec 2013 at 12:37

If i was you i would have a rethink and start over from scratch, im no expert in watercooling but here is what i would be doing, first i would not have dual pump set up, really dont see the need, also making assumption here as dont know what you have and dont have, but here is how i would set mine up in a single loop, either like in the photo, or my choice would be using a 5.25 bay res and pump combo

the photo is just to illustrate how i would set up my rads

Will still have 2 x 140 mm fans bringing in cool air from the front, and can do the same with the rear fan too

murah · 22 Dec 2013 at 14:28

Loved the ghetto rig OP, also you are very very brave using barbs I'd want compression fittings for peace of mind.

I agree with others you should keep it simple and make sure the case is getting enough air flow.

diogenese · 22 Dec 2013 at 17:21

I think I will fit the blue rad into the loop between the gfx cards and loose the WACC pump at the bottom then go titan-cpu-top rad.
With the bottom pump gone I can fit more intake fans at the bottom and blow the front rad out.
I can tweak fan speeds to get airflow in and out the same.
The top rad is a 420 45, I can't get a thicker one in there without loosing the stealth optical drive bay then I wouldn't be able to get the dual res in.
With regard to the barbs I am using 1/2 inch barbs with 7/16 bore tube and haven't had a leak since my XP1800 over ten years ago

murah · 23 Dec 2013 at 02:02

fair enough on the barbs, just read to many horror stories this year and its put me right off them. plus they look good although It won't help your performance issue

diogenese · 23 Dec 2013 at 02:22

I know what you mean, I have had leaks with bigger bore pipes and broken some expensive gear :-(

I have monsoon compression fittings on the blue pipes but I only had 6

TAZOO7 · 23 Dec 2013 at 08:23

Take it the front of the 810 is different to my 820 then

diogenese · 23 Dec 2013 at 09:04

diogenese · 23 Dec 2013 at 09:07

usb ports, audio and sd card reader under the top flap, optical drive on the next one then a space as my dual bay has a modified fill port and takes up 2 1/2 bays

diogenese · 24 Dec 2013 at 07:20

I've taken out the second pump and replumbed it to a single loop with two rads and added more 4 more fans and dropped a whole 4 degrees

I have positive pressure in the case with the intake fans working harder.
Maybe it is higher ambient temps but they are only a degree or two up.
I had 35-40c temps on the gpu's with a spindly XSPC 420 rad and now with basically the same setup bar swapping out the thin 420 rad and replacing it with a alphacool XT45 420 rad I have gone up to 40-50c on the gpu's and 6c extra on the cpu. Oh, and fitting it into a big airy case :confused:

The three 140 bitfenix fans are intakes and the blue rad has two 120 and one 140 fan as outlets and the top 420 rad has 3 140 outlets