Corsair 800D and MCP655 pump - how to mount?

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xiogel

n00b
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Mar 20, 2010
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Hi guys,

I'm a total noob with regard to water cooling, and I've been thinking of setting up a loop for my new build. The following are two possible single loops that I have planned for a watercooled i7 920 and GTX470 rig. Any loop suggestions are also welcomed:

Option 1 - Pump in lower seciton:
watercooled800drig.jpg


Option 2 - Pump attached directly under res:
800dwc.jpg



I am planning on using Corsair's 800D case and Swiftech's MCP655 pump but I've been scratching my head trying to figure out how to attach the pump to the case. I would like to know if it is possible to mount it to the back of the mother board tray or at the bottom of the case without doing any modding to the 800D (i.e. without drilling new holes into the case) ?
If you guys have some worklog examples or some screenshots of how this has been done I'd really appreciate if you can refer me to them.

Thanks!
 
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Thanks for your reply Daemas.

Daemas said:
Personally, i'd do Res > Pump > 120.3 (intake) > CPU > 120.1 (intake on rear 120mm) > GPU > res
Click to expand...
Are you suggesting to set them up as intake to draw cool air through the rad? I know I can set up some exhaust at the bottom and front of the case, but wouldn't all the hot air going into the case affect the mobo and other components within the case?

Daemas said:
but anyway, this guy attaches to a 120mm fan. Attach it to the bottom 120mm
Click to expand...
Oops, I should have specified that the divider plate at the mid-bottom section of the case has mounts only for a 140mm fan. The bracket (UN Designs Z2) you posted wouldn't work with 140mm right? So I guess I would have to get the one for 140mm (UN Designs Z3).
 
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xiogel said:
Thanks for your reply Daemas.


Are you suggesting to set them up as intake to draw cool air through the rad? I know I can set up some exhaust at the bottom and front of the case, but wouldn't all the hot air going into the case affect the mobo and other components within the case?
Click to expand...

With positive pressure (more intake than exhaust), the air will seep out of the cracks and meshes in the case, preventing a lot of the dust from getting in there. The heat will escape. The greater the difference in air pressure between the inside and outside of the case, the faster the air will move out of it.

So I'd do this. 120.3 intake, 120.1 intake and the two bottom fans are exhaust. Check temps, etc. See how it works. Then,. while keeping the 120.1 rad up top on the back, flip the orientation around so that it exhausts. Check temps, etc. and use the best one.
800dgallery6.jpg


Oops, I should have specified that the divider plate at the mid-bottom section of the case has mounts only for a 140mm fan. The bracket (UN Designs Z2) you posted wouldn't work with 140mm right? So I guess I would have to get the one for 140mm (UN Designs Z3)
Click to expand...

120.1 rad, therefor 120mm fan?
800dwc.jpg
 
Daemas said:
So I'd do this. 120.3 intake, 120.1 intake and the two bottom fans are exhaust. Check temps, etc. See how it works. Then,. while keeping the 120.1 rad up top on the back, flip the orientation around so that it exhausts. Check temps, etc. and use the best one.
800dgallery6.jpg
Click to expand...

Yep, I guess I will have to play around with the setup to see what gives me the best temps.

Daemas said:
120.1 rad, therefor 120mm fan?
800dwc.jpg
Click to expand...
That picture was made by someone else as a second option for a loop setup to the original one I posted above. But because the original one has a 120mm rad mounted at the back, the guy who did the picture suggested to move it to the bottom. The back of the case has mounts for both 120mm and 140mm fans, but the bottom divider plate only has mounts for a 140mm fan. So that is why I was saying that I may have to use UN Designs' Z3 bracket to set it on the 140mm mounts. And I suppose that if I want to mount a 120mm rad there, then I would require a 140mm to 120mm adapter?
 
xiogel said:
Yep, I guess I will have to play around with the setup to see what gives me the best temps.


That picture was made by someone else as a second option for a loop setup to the original one I posted above. But because the original one has a 120mm rad mounted at the back, the guy who did the picture suggested to move it to the bottom. The back of the case has mounts for both 120mm and 140mm fans, but the bottom divider plate only has mounts for a 140mm fan. So that is why I was saying that I may have to use UN Designs' Z3 bracket to set it on the 140mm mounts. And I suppose that if I want to mount a 120mm rad there, then I would require a 140mm to 120mm adapter?
Click to expand...

if it's 140mm, that's best. Find a Z3 and get er done
 
A MCP650/655 pump won't fit straight up in the bottom bay with the power supply because you still need room to route the tubing through the two grommets near the 140mm intake. It may work if you mount the pump sideways, but then you'll likely need 90 degree adapters to prevent your tubes from kinking, which means buying a new top for the pump to support G1/4 threaded fittings. I'm using a MCP350 down there right now with a top, and there's barely enough room for me to route the tubes using 45 degree rotaries.

I'm also a fan of res top/pump combos if you have room for them since they reduce tubing and potential clutter in the build. I think I'll go that route when I redo my loop, adding in a new gpu and quick disconnects as I change components fairly often.
 
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xiogel said:
Does it feel lose or will it come off easily if you move the case around?
Click to expand...
No it will not come off easily. Just make sure your clean everything so the glue can get a good bond and you will be fine.
 
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