difference between MCB 655-b vs MCB 655-01
what is the difference beside speed control on the 2 pump?
and which top is better for the MCB pump ?
i am looking at the EK DDC X5 top vs the EK D5 X5 top @_@
or is there any better choice ?
I'm not an expert, but I did some research for my first WC build a few months ago.
AFAIK there is no difference between the MCP 655-b and MCP 655-01, aside from the speed control. I got a 655 with speed control, but in retrospect I might as well have gone with the basic one, as I just leave it at max speed anyway. Even at maximum speed, you can only hear it by putting your ear very close to it.
The DDC top is for DDC pumps (like the MCP355) and the D5 is for D5 pumps (like the 655 you're asking about).
I got a D5 top on my 655 and it does the job just fine for my loop.
IIRC the one without speed control is set to 3 (if it had speed control), whereas the one with speed control can go up to 5 or 6. Someone correct me if I'm wrong!
i wonder when daz will restock on those MCB 655-B pump :biggrin:
-B version is permanently on 4
Non-B is capable of 5 variable.
Also, the -B version includes RPM cable aside from the molex power cable. The speed adjustable version does NOT have it. Easy visual difference, is -B version uses yellow/black cables, Non-B uses Red/black cables.
kool it is good to know, i wonder if that 1 extra channel increase the speed a lot
thanks for the heads up guys :clap:
Dazmode did a test of how flow affects temperature and he found only a difference fraction of a degree between speed 4 and 5.
Read it here.
Difference in flow when you already have a >1 GPM loop isn't going to affect temps much. Difference in flow rate only comes into play in a ultra low flow loop, where the limiting factor of heat transfer is coolant flow.
We have both pumps in stock. It was an error in stock readings, sorry for that.
On single CPU loop both pumps will be pretty much the same, but with more blocks and higher overclock difference will be more prominent (see second flow test results).
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