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MCP35X or D5 with EK D5 X-top

post #1 of 15
Thread Starter 
I used the search feature but couldn't find a conclusive answer.

Currently waiting on a MCP35X, but I've noticed a lot of people recommending the D5 over DDC pumps ...

I have a EK supreme HF CPU block, an XSPC RX360 rad and an EK Multipoption 150 res adv. So Cpu-only loop, not a lot of restriction.

Should I get the D5 with Xtop instead? Some people say it's hotter and louder, others say it's quieter, more reliable ...

Or stick with the MCP35X?

I know it won't make a lot, if any, difference in temps. I just wonder why a lot of people recommend the D5 ...

PS: loop still not build... that koolance PMP-400 was DOA -.-
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post #2 of 15
If you've already paid for the 35x, then just use it. I prefer a d5, but 35X are good pumps. It really doesn't matter at all for a cpu only loop, as it won't be crazy restrictive.
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post #3 of 15
If you've already got the 35X ordered then I'd use it but use PWM to set the speed at around 20% when it should be very quiet providing it's decoupled.
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post #4 of 15
Both are great pumps. The 35x has better head pressure. However it is known to run hotter.

I have the D5 and prefer it because it has more flow, runs very quiet with the top especially and not hot.
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post #5 of 15
Quote:
Originally Posted by AMC View Post
Both are great pumps. The 35x has better head pressure. However it is known to run hotter.

I have the D5 and prefer it because it has more flow, runs very quiet with the top especially and not hot.
look at the head pressure though
this is why the mcp355 and mcp655 perform about the same
The mcp355 comes out on top by a bit because of the head pressure. The mcp655/d5 comes close because of the gph
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post #6 of 15
Quote:
Originally Posted by Juggalo23451 View Post
look at the head pressure though
this is why the mcp355 and mcp655 perform about the same
The mcp355 comes out on top by a bit because of the head pressure. The mcp655/d5 comes close because of the gph
Really though, it's a moot point if all he wants to run is a CPU loop.
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post #7 of 15
Quote:
Originally Posted by Juggalo23451 View Post
look at the head pressure though
this is why the mcp355 and mcp655 perform about the same
The mcp355 comes out on top by a bit because of the head pressure. The mcp655/d5 comes close because of the gph
I did review each pump and saw the difference in head pressure.

Each pump has it's application. For a CPU loop only, a D5 is appropriate.
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post #8 of 15
Thread Starter 
And what about heat dump of the D5? Loop will go res > pump > cpu > rad
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post #9 of 15
Although the D5 dumps a bit more heat into the loop than a 35X it's probably only a degree or so with the pump at full speed. However with a simple loop like you're planning you wouldn't need to run it a full speed.

Edit: I just noticed you're using an Asus motherboard. Fan Xpert comes as part of the AI Suite and it's an excellent PWM controller for a 35X with a few pre-set configurations and a user configurable one. I've got my 35X's set to run at 20% until the CPU temp hits about 50ºC when it speeds them up to 50% (bearing in mind the full rated speed is reached at a 60% PWM setting).
Edited by Big Elf - 10/4/11 at 12:21pm
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CoolingCoolingCoolingOS
Pumps - Swiftech 35X2 x 2 & Heatsinks Reservoir - EK Multioption X2 400 Advanced Fans - 20 x Noiseblocker PL2 Windows 7 Pro 64-bit 
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post #10 of 15
Thread Starter 
Thanks for the replies, I thought I missed something special about the D5 but I'm going to keep waiting for the MCP35X now.
Black Betty
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