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1 or 2 rads

post #1 of 7
Thread Starter 
ok so my current loop is the first orientation. However, i was curious would my pump be able to handle a second rad fitted to the outside of the case? my pump is the mcp35x. Or does it even matter should i just stick with one rad i am not a complete stickler for temps.

res--->pump--->2xgpu---->cpu----> rad
or
res--->pump--->2xgpu--->rad--->cpu--->rad

this is what it would look like with the second rad (obviously not mounted on the back yet because i haven't bought it)

Attachment 234583

also i think i may be able to switch the orientation on pump to

pump---> res---->rad--->cpu---rad--->gpu

sorry for bad pic taken from PoS phone ill be taking pics with the iphone soon : )
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post #2 of 7
The MCP35x is a beast and will easily handle an extra rad on top of your loop. Rads do not add all that much restriction anyway, so you are usually OK to add another one.

Edit:

For the flow path do not go pump > res. You want your res before your pump so that it is getting a supply of water all the time. Plus with the res after the pump you are essentially pulling the liquid through the loop rather than pushing, something that centripetal pumps are poor at.

Really all that matters is res > pump, other than that go for the cleanest possible loop. The water temperature does not vary by much as it circulates as it takes ~260W to heat water by 1°C at 1GPM.
Edited by GingerJohn - 10/18/11 at 9:09pm
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post #3 of 7
35x can easily handle a second rad...you will be fine.
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post #4 of 7
Thread Starter 
ok well awesome... now that i know it can handle the extra rad will i even need to add the rad becuase if it only decreases my temps by 5 Celsius i could really care less.
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post #5 of 7
Quote:
Originally Posted by smokebaca View Post
ok well awesome... now that i know it can handle the extra rad will i even need to add the rad becuase if it only decreases my temps by 5 Celsius i could really care less.
5°C might even be optimistic depending on what else you are running in your loop. Have a play round with Martin's pump and rad optimizer and see what you get with and without the extra rad.

Either way you can easily add it later, if you are in doubt stick with the single rad for now and leave the upgrade path open.

If I were a betting man I would put money on you getting that extra rad within 6 months...
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post #6 of 7
so true...

once you start, you are going to get every ounce of performance you can..
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post #7 of 7
Thread Starter 
lol well thanks for all the advice i guess i'll stick with only one rad for now
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