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New WC build for Cosmos 2 - Need some help

post #1 of 12
Thread Starter 
So, I currently have an original Cosmos and it was my first attempt at water cooling.. and it failed miserably IMO.... It's not as cool as it should be, and it's not any quieter (or cooler) than it was on air. So before I move everything to my new case, I thought I would take another stab at WC'ing and try to remedy whatever the issue is with my current setup.

I suspect the current issue is my pump doesn't move enough water, (ThermalTake P500) and that's why my temps are high. (idle around 43-45) So before I drop another $400+ on a new loop, I wanted to get some feedback from the community.

Here is my current setup, I'm only listing it so maybe someone can tell me what I did wrong.. 99% of which I am replacing altogether, though I might possibly re-use the 240 radiator, or just get a new one.. haven't decided yet. Note: This is currently a CPU only loop... I will be adding 2 GPU's to it when the new 6xx series comes out.


CPU: i7 920
Mobo: Asus Rampage Extreme II
Pump: ThermalTake P500
Rad: BlackIce GT Stealth 240
Block: Swiftech Apogee GTZ
Fans: Scythe Slipstreams
Misc: DD fill port, ThermalTake Aquabay M1,3/8 Tygon hose, standard barbs

And here are my temps frown.gif - And yes, I've tried reseating my block 4 times, and my temps never get any better (or worse) Soooo.. either the block is terrible or the pump.

645



So, my goal is to make my PC as silent as possible, I would prefer to not hear it at all.. but I don't know if that's a reasonable request. I currently have two EVGA GTX570's in SLi, I just bought them a week ago, hoping the 670/680's come out during my "Step up" window (rumor is April 12th launch) When that happens I'll be getting those and adding WC blocks, so I want to make sure my loop will handle those in the future as well.

Here are the parts I was interested in.. Please let me know if you have any other recommendations. I am pulling the trigger tonight or tomorrow at the latest, depending on feedback from here.

Pump

I know these Flat Style Pumps Are really popular, are they better than the other? I was leaning towards the MCP-655 because it has a higher flow rate and higher pressure, which I assumed was better, but I don't really know TBH. I don't think room is going to be an issue thumb.gif

360 Radiator - I really wanted the nice EK rad, but they don't offer a slim enough version and it's apparently a tight fight as it is and can't do push/pull with a full size radiator.. so I plan to get a slimmer 360 with full fans on the top and some slim Scythes on the bottom.

240 Radiator (I really like the drain port) Or Other 240 Radiator Or reuse my current 240 radiator but my current one is red.. so I kinda want to replace it.. even if I can't see it blinksmiley.gif

Reservoir

A couple of QDC's Probably at the radiators, not sure if I'm gonna put them on the CPU block or not, but I kind of doubt it.

1/2 inch tubing

I'm considering replacing my CPU block.. I'm planning on a 2011 build soon.. just waiting for the quad-core 2011 Ivy bridge to get released, so I could get a new one that will work on my current 1366 and just swap over to the 2011 when I get it.. Looking at Another Swiftech or an EK.

Everything else that's not a QDC will be standard 1/2" barbs, Distilled water + Kill coil.

I don't think I missed anything.. I'm really trying to use the built in fan controller.. My current one is kinda hosed. Supposed to get the new controller board tomorrow.. so I hope that fixes it... My initial plan was just to get an external fan controller, but now that I have the case, I'd like to keep the built in hot-swap bays (lots of drives laying around - lol) The Cosmos 2 has 3 regular bays +2 for the hot swap trays that are removable.. So a double bay reservoir only leaves me 1 bay left if I want to keep the hot swap trays.. so it's either a fan controller, or my BluRay drive.. if the new controller works, I'll be golden.

Any input or advice is appreciated,


Thanks
Edited by chainesaw - 2/12/12 at 2:03pm
post #2 of 12
Thread Starter 
Wanting to order parts today.. any one have any input ?
post #3 of 12
Could you post a picture of your existing system? With only a cpu in the loop seems odd, the radiator is not too hot to touch is it?
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post #4 of 12
If I were you I would grab an xspc kit, maybe the rx360 kit

Use your current 240 rad (grab 2 new barbs for it)
Use the rx360 kit
Grab 2 blocks for your gpu's
Grab some primochill tubing for the lot

Get rid of the old gear

I believe your bad temps are due to a poor loop, I strongly recommend never to use thermaltake
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by avaya View Post

Could you post a picture of your existing system? With only a cpu in the loop seems odd, the radiator is not too hot to touch is it?

Nope. Barely even warm, even the air that comes through it is barely warm, certainly not what I would even consider hot. The pic is not the best, it's just what I had on my phone.. and really, I was taking a pic of my refinished $20 CL lateral cabinet thumb.gif

I do know I followed some bad advice and my loop is not "optimal" but I don't think even that accounts for the temps. Currently it goes:

Res--> pump-->CPU-->Rad-->Res

700

I will post some more pics when I get home.

Also @ Liamstears - I don't think I can get a full size (eg 65mm thick) radiator in the top of the case without having mobo clearance issues.. and it will certainly not fit a push/pull with a full size one.. I would love to get either the full size EK or XSPC 360.. So if anyone knows differently, please let me know.. I should have my new fan controller board waiting for me at home.. I might throw an old mobo in there and do some measuring for for clearance. My future build will most likely be an Asus RE-IV - I just hope there's nothing on the board that will become a clearance issue.
post #6 of 12
If the air coming through the rad does not feel warm when you are running at load, that means you have an air bubble in the rad.

How long has this loop been running?
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post #7 of 12
BTW I recently completed my own build in a cosmos 1000, temps are great and I'm very happy with it. I don't see how you could fit a 360 inside without considerable modding however, much less a 360+240. Or are you talking about what you would put in the cosmos 2?

Also what makes you say you got bad advice about your loop? Seems fine to me.
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post #8 of 12
hmm where is your rad?
post #9 of 12
I'd assume the radiator is in the top of the case where the 2 140mm fans mount.

If that's true, have you tried taking the plastic cover off the top to improve airflow over the radiator?

--Alex
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post #10 of 12
Something is definitely wrong here. Temps should be in the 40's at that frequency. I would suspect the block and pump as your culprits, however that is only a guess.
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