Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355) - Techist - Tech Forum

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Old 10-11-2008, 12:09 AM   #1 (permalink)
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Default Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

What're your guys' thoughts on these two pumps.

My loop would be

D'tek Fuzion V2 CPU block ---> D'tek Fuzion GPU block ---> Swiftech MCR320 ---> pump --->
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Old 10-11-2008, 12:24 AM   #2 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

have you bought any of these parts yet? if you are planning to do a gtx260 get one of these instead of the fuzion gpu block XSPC Razor GTX260 Full Cover VGA Water-Block
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Old 10-11-2008, 12:25 AM   #3 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

d5 has higher flow. Do you plan on adding chipests into the loop later
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Old 10-11-2008, 01:15 AM   #4 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

Quote:
Originally Posted by veedubfreak View Post
have you bought any of these parts yet? if you are planning to do a gtx260 get one of these instead of the fuzion gpu block XSPC Razor GTX260 Full Cover VGA Water-Block
No, I have not purchased anything yet. I have an 8800GT 512mb, I will not need a GTX260 full cover block.

Quote:
Originally Posted by thirdshiftdj View Post
d5 has higher flow. Do you plan on adding chipests into the loop later
This may be a possibility, which way would having a Northbridge and/or voltage reg blocks sway your opinion on pumps?
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Old 10-11-2008, 01:23 AM   #5 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

nope, I say get the d5 anyways. I have the ddc 3.2 myself but I only have the cpu and nb in the loop. I plan on adding sb and maybe later gpu but that would involve getting another pump and do separate loops. Make sure to get the d5 vario
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Old 10-11-2008, 07:10 AM   #6 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

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Originally Posted by thirdshiftdj View Post
nope, I say get the d5 anyways. I have the ddc 3.2 myself but I only have the cpu and nb in the loop. I plan on adding sb and maybe later gpu but that would involve getting another pump and do separate loops. Make sure to get the d5 vario
why the sb?
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Old 10-11-2008, 09:25 AM   #7 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

They are both very good pumps...I have not heard the D5 vario on high but I hear that on full the DDC is a bit quieter...but of course with the vario you can drop the pump speed.

Also as said, the D5 has a better flow rate....the DDC can get very good flow rates as well with an aftermarket top but you are just trading lifting height for flow.

Basically, I would go for the D5...it's better in almost every way except size.
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Old 10-11-2008, 03:17 PM   #8 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

I've been running a d5 for about 2 years and now I finally bought a DDC2 with a petras top.

However the DDC2 is the god of water cooling pumps. It significantly outperforms the DDC3.2 however it did have a much higher failure rate. Nearly 5%.

Found a gently used one and will report back on how it performs.

Also despite the D5's claimed higher flow rate the DDC has much more pressure when paired with an aftermarket top which will cause it to get better flow rates in a real world loop and not a free flowing one.

Use this to figure out what your flow in GPM would be with each pump, then make your decision.

Martin's Flow Rate Estimator
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Old 10-11-2008, 04:22 PM   #9 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

Quote:
Originally Posted by aspire.comptech View Post
I've been running a d5 for about 2 years and now I finally bought a DDC2 with a petras top.

However the DDC2 is the god of water cooling pumps. It significantly outperforms the DDC3.2 however it did have a much higher failure rate. Nearly 5%.

Found a gently used one and will report back on how it performs.

Also despite the D5's claimed higher flow rate the DDC has much more pressure when paired with an aftermarket top which will cause it to get better flow rates in a real world loop and not a free flowing one.

Use this to figure out what your flow in GPM would be with each pump, then make your decision.

Martin's Flow Rate Estimator
I'm showing 1.31 GPM with the D5 and 1.55 GPM with the 3.2 w/ XSPC non-res top.

Will .2 GPM make a significant difference?
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Old 10-11-2008, 04:24 PM   #10 (permalink)
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Default Re: Laing D5 vs. Laing DDC 3.2 (aka mcp655 vs. mcp 355)

no.

If you get the DDC then make sure to leave some room under the bottom for a little airflow because it can get very hot.
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