Swiftech MCR320 Questions/Loop Options

Recently I purchased the new stackable version of the MCR320 to go along with the one I already have. The idea is to have something more than capable of cooling my current Q6600 or future Q9650 and the x48 chipset on my Rampage Formula.

When my new MCR320 arrived I discovered the fittings are not the same. I believe my old MCR320 has NPT threads and the new one uses the standard G1/4 fittings. If I get another standard MCR320 what fittings will it have? Is there are fitting that will work? Is it worth the hassle or would a XSPC RX360 provide better performance?

My Quad seems to have some good potential. I have had is to 3.8 on air but dropped it back down due to high temps. I would also like the system to be quiter than my Zalman 9700 at max speed. Will probably use some sort of fan controller.

What I have:
655 vario pump
3 Scythe KAZE-JYUNI 1600rpm
3 Scythe KAZE-JYUNI 1900rpm
MCR320 and MCR320 Stacker
D Tek Fuzion v1 with quad nozzles
D Tek Chipset block, low restriction
Danger Den single bay res
7/16 Black Tygon with blue coolsleeves

All of the current Swiftech MCR-QP radiators come tapped in 1/4" NPSM (which is 1/4" BSPP/G1/4 compatible)... so, if you were to buy another one new, it should be tapped in 1/4" NPSM. As for your older MCR320, you should be able to use 3/8" BSPP to 1/4" BSPP adapters (even though it's tapped in 3/8" NPT) but it may mess with the spacing between the stacked radiators.

Really, though, you'd probably see better performance if you didn't stack the radiators... and two MCR320's will most certainly outperform a single RX360. With two MCR320's, you easily have enough radiator for an i7 and SLI'd GTX285's

BitsPower makes a fitting to adapt the "older" barb fittings to the new G1/4.

Look on Sidewindercomputers.com or call the guy.

Hey thanks for info guys. I'm looking to mount these in a P182. The top has been cut to allow a MCR320, but if I run them in series how could I mount them. I could mod one into the front, but would I have the fans pull air into the case? Would that overheat other internals? Can I have both rads sucking air into the case?

Joni Nitro said:

Hey thanks for info guys. I'm looking to mount these in a P182. The top has been cut to allow a MCR320, but if I run them in series how could I mount them. I could mod one into the front, but would I have the fans pull air into the case? Would that overheat other internals? Can I have both rads sucking air into the case?

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You can mount one in the front though I'm not quite sure how you'd pull it off. It'd be better to rad box it on the back.

Yes you can have both rads sucking air in. I wouldn't worry too much about your other components since you don't seem to be cooling your GPU. You honestly don't need 2x 3x120 rads for just the CPU+chipset.

Please post the results and whatever cures you find. I am very curious as to the efficiency of stack configured radiators. Although my confuration ATM is external and I'm only cooling a low TDP 8800GS with a MCW60-R WB and only a MCR220 rad. I'm currently trying to upgrade my boxen to a GTX 275 GPU (D'oh, the one I thought had 400 SP's vs 240 SP's ) I figure I'll have to increase my rads cooling area and was thinking about stacked triple rads.

Like I said, PLEASE post some results. I have read something about the MCP rads having different threads or something. I honestly don't understand all I know about it

After reading more about this, I am just going to stack them. I am going to stack them a little differently. I will be doing rad>shroud>fan>shroud>rad. Hopefully this maximizes airflow across the entire surface of the radiators. I am using some Scythe 1900rpm fans with a controller.

I hope this is ok, but if you want to read a lot of good info check this thread. http://www.xtremesystems.org/forums/showthread.php?t=218599&highlight=Swiftech+mcr320

Joni Nitro said:

After reading more about this, I am just going to stack them. I am going to stack them a little differently. I will be doing rad>shroud>fan>shroud>rad. Hopefully this maximizes airflow across the entire surface of the radiators. I am using some Scythe 1900rpm fans with a controller.

I hope this is ok, but if you want to read a lot of good info check this thread. http://www.xtremesystems.org/forums/showthread.php?t=218599&highlight=Swiftech+mcr320

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I'm very curious to how you're going to have enough room for that setup in the P183.

Well it wont be in it, thats for sure. It will be on top pulling air into the case, and I am going to put some good filtration to catch the dust. Its going to be about 5in thick. I could probably mount it on the rear of the case. It would be less noticable. Once I get the stack finished I will decide where to put it or if it just to bulky for me.