mcp 355 Pump replacement suggestion

[warmage]

looking for dual pump option to replace laing (mcp 355) , i been replacing dead pumps like battery's now
using EK dual ddc top v2 with x2 ddc 355 , 4 have failed already and iam getting tired of this replacements

each time one fails i go back to single D5 vario or use x2 12w ddc look alike till my replacement comes
*D5 total run is more then 2 off my top ddc runs combined >.>
*12w ddc in series using tube (wont fit any after market top , 2 in series equals to 1 mcp355)

should i go for D5 Vario with EK dual top ? or is there a better pump option that i should look into

[andressergio]

mcp35x amazing pump replaced my D5 for it no noise super power

[warmage]

mcp35x amazing pump replaced my D5 for it no noise super power

it looks good , but the void warranty using a top turns me away from it

[Liam_G]

it looks good , but the void warranty using a top turns me away from it

If your looking for dual pumps then the MCP35X2 is hard to beat, great performance, no need to replace the top, pwm control, low noise, it's a gem.

[Waterlogged]

If your burning through pumps that fast, I'd have to question whether if the flow rate is excessive (2+ GPM) or if the pumps are sitting on something that may trap the heat and release it back into the pump housing. Pumps do not like having a "light" load on them (which would be a byproduct caused by excessive flow rate) and they'll actually draw more power which will burn out something on the pcb sooner or later.

[andressergio]

If your looking for dual pumps then the MCP35X2 is hard to beat, great performance, no need to replace the top, pwm control, low noise, it's a gem.

+1 for this

[Vicey]

If you are having pumps die that often I'd have to question wether they are spinning too fast due to a lack of pressure and burning out.

Do you really need two pumps in serial?

[warmage]

setup is EK HF cpu block , EK 6970 block , 150ml res and PA120.3 , 3/8" tubing and fittings
pumps are mounted on alum plate

dead 355 pumps are
1- stock top swiftech 355 (single) dead 2008
2 swiftech 355 with XSPC top (single) dead 2009
3- laing 1plus (ek dual ddc top , that had an extra 6970 card) bought and died in 2011
4- laing 1plus (ek dual ddc top , my current setup) dead 2 days ago 2012

dual pump gives an extra fail safe for me , if one fails i have another running till i notice it >.>
which happened 2 times now

If your looking for dual pumps then the MCP35X2 is hard to beat, great performance, no need to replace the top, pwm control, low noise, it's a gem.

iam looking into that atm , any data of they are more reliable then ddc 355 ?

[zanzabar]

i really like the CPX pro 18W, you can get them from EK, DD, and directly from jingway as the dp1200. they drop less heat in the loop and my temps went down 2c when i swapped my ddc with ek top for one.

[lowfat]

If your looking for dual pumps then the MCP35X2 is hard to beat, great performance, no need to replace the top, pwm control, low noise, it's a gem.

This gets my vote. Use the PWM to run the pumps @ 2000RPM. They should last considerably longer, you still have redundancy, and it will be very quiet.

[iboomalot]

My Dual D5 vario are like the energizer bunny it keeps going and going

[Russ_64]

If you are having pumps die that often I'd have to question wether they are spinning too fast due to a lack of pressure and burning out.

Do you really need two pumps in serial?

I am with Vicey - two pumps are not needed for a single CPU/GPU/RAD/RES loop. I have both a single D5 and single MCP355 with ample flow.

[RoadconeTuning]

jesus how are you killing so many pumps? i just went 4yrs on a single DDC3.2 with a GPU block, Swiftech GTZ, Viperjohn chipset block and a pair of Bitspower mosfet blocks thru an MCR320... you need to stop jamming 17v into your pump or something

[warmage]

jesus how are you killing so many pumps? i just went 4yrs on a single DDC3.2 with a GPU block, Swiftech GTZ, Viperjohn chipset block and a pair of Bitspower mosfet blocks thru an MCR320... you need to stop jamming 17v into your pump or something

you sound hostile for some reason , regarding voltage its getting 12.4v max and 2 died in a single pump config in a year and a half one with stock top other with XSPC top

waiting for the new EK D5 dual top , my other option is Swiftech MCP35X2

[Waterlogged]

Dual pumps is total overkill for that setup. If you must have 2 pumps, go for a pair of MCP350's. . .otherwise, go with a single MCP35X.

[st0ned]

Well I wouldn't thing that achieving >2GPM is that easy. This are my results with different blocks using two mcp-35x in series.

CPU: Chart
GPU: Blocks 2x FC7970 parallel
3x360 Rads



Only top performer went for ~2GMP, and this is with the GPU blocks in parallel, so less restriction then a single GPU block.