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Question about my MCP655

post #1 of 13
Thread Starter 
I have a MCP655 with an Apogee XT on my CPU with a MCR320 Rad. My Ek full motherboard block just got shipped on Friday. I also ordering 2 XSPC Rasa GPU blocks for my GTX 460's and a MCR220 rad tonight. Good time to add more since i have to take it apart.

My Question is will my 655 pump be able to handle the restriction of the Apogee XT/EK mobo block and still be able to push through my GPU blocks efficiently to my second rad? Would there be too much heat getting dumped from my GTX 460's and too little flow?

They are running at 900/1800/2025 right now and get a temp of 65c - 70c when playing Crysis 2. I plan on doing a bios flash to get more power out of them.

I'm thinking loop order

Pump -> Rad 360 -> CPU -> Mobo -> Rad 240 -> GPU's -> Res
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post #2 of 13
Your flow should be just fine.

Also loop order does not make any difference in temps (at most it's like .5C) so do whatever makes your tubing easiest.
post #3 of 13
Thread Starter 
Thanks.
RedCraze
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post #4 of 13
Quote:
Originally Posted by Kinru View Post
Your flow should be just fine.

Also loop order does not make any difference in temps (at most it's like .5C) so do whatever makes your tubing easiest.
what he said yeh, from what i've read, mcp655 has a very good flow rate, so the elss restriction your system has the better, mcp355 has head if you have a lot of restrictions
so yeh, your pump will do a good job for your loop ^_^
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Ren - First Born
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post #5 of 13
the mcp655 has 50 psi of pressure. it'll be just fine.
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post #6 of 13
Quote:
Originally Posted by Kinru View Post
Your flow should be just fine.

Also loop order does not make any difference in temps (at most it's like .5C) so do whatever makes your tubing easiest.
Except res before pump of course

You should be good to go.
     
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post #7 of 13
Quote:
Originally Posted by Coolwaters View Post
the mcp655 has 50 psi of pressure. it'll be just fine.
It doesn't. That's the maximum pressure it can contain.

I don't think his pump will be powerful enough, a 655 on setting 5 (highest) only provides 4.7 PSI of pressure at 1 GPM. That motheboard block alone needs 3+ PSI of pressure for 1 GPM of flow, so once you add in the CPU and GPU blocks and the radiator, you will be over 4.7 PSI.

A 35X would work nicely for your loop though, it has over 6 PSI of pressure. Alternatively you could pick up a second 655 and a dual top for it but that would cost much more.
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post #8 of 13
Quote:
Originally Posted by charliehorse55 View Post
It doesn't. That's the maximum pressure it can contain.

I don't think his pump will be powerful enough, a 655 on setting 5 (highest) only provides 4.7 PSI of pressure at 1 GPM. That motheboard block alone needs 3+ PSI of pressure for 1 GPM of flow, so once you add in the CPU and GPU blocks and the radiator, you will be over 4.7 PSI.

A 35X would work nicely for your loop though, it has over 6 PSI of pressure. Alternatively you could pick up a second 655 and a dual top for it but that would cost much more.
Idk, I've seen plenty of loops very similar to that, only with full cover blocks instead, with just a single d5 and haven't heard a thing about bad flow rates.
post #9 of 13
Thread Starter 
Quote:
Originally Posted by charliehorse55 View Post
It doesn't. That's the maximum pressure it can contain.

I don't think his pump will be powerful enough, a 655 on setting 5 (highest) only provides 4.7 PSI of pressure at 1 GPM. That motheboard block alone needs 3+ PSI of pressure for 1 GPM of flow, so once you add in the CPU and GPU blocks and the radiator, you will be over 4.7 PSI.

A 35X would work nicely for your loop though, it has over 6 PSI of pressure. Alternatively you could pick up a second 655 and a dual top for it but that would cost much more.
If i was to pick up a second 655, would it be better to go for 2 loops instead of 1 large loop?
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RedCraze
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post #10 of 13
There is no benefit in 2 loops over 1 loop, just looks. Temps will still be the same and the only difference would be that you would probably end up spending more money (need a second reservoir). Running 2 in serial would give you the power needed, but anything else is up to you.
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