Will an extra pump help at all?

Dethred

2[H]4U
Joined
Jul 30, 2006
Messages
2,543
I have an MCP655, 2xMCR320 rads, a Dtek Fuzion, and about 11-12 ft of tubing in my loop. This is just for a CPU block, (but may later include a VGA block).

Will adding one of these D-Tek dB-1 12V DC Inline pumps help with temperatures? If so will it be worth the hassle of draining, installing, filling, and bleeding the system? http://www.petrastechshop.com/ddb12inpu.html
 
If your going to have 2 pumps in series then they need to be the same kind of pump. You can't have 2 different flow rates. You'll end up starving one or the other.

If you did add another pump I would be surprised if you saw much of a difference. What's your flow look like now? If it looks like it's flowing ok then your probably fine as is.
 
Flow looks fine, I just didn't know if it would make a difference. Thanks for the advice!
 
Have a look at ThermoChill graphs here: http://www.thermochill.com/PATesting/

Note on Heat Dissipated vs FlowRate graphs for PA120.1 > PA120.3, the difference in wattage dissipated doubling from 1gpm to 2gpm, also note how the curve is levelling out towards the upper range. The benefit of double pumps is very limited, unless you have a LOT of high restriction devices that's pulling your total flowrate below that needed by the radiators to sufficiently cool the heatload in partnership with your airflow. Even then, the additional heatdump of the 2nd pump can often cancel out all it's benefits if airflow is too low.
 
Your system is fine with just the 1 pump that you have. My old loop had 2x mcp350 petra tops in series powering a 2x mcr220, apogee gt, 680i chipset, alphacool chipset, 8800gtx, and I only had 2 degree celsius improvement from using 1x mcp350 petra top. So I went back to just using 1 pump. Less noise and vibration!
 
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