EK D5 Pump started clattering?
EK D5 Pump started clattering?
Hey there, so I've been using this setup for a few years now. Recently, while running a penetration test on my own system, I noticed a loud clattering sound along with strong vibrations from the pump. I investigated and found that the pump would stop, restart, and then vibrate repeatedly before stopping again. It sounded like rocks spinning inside the propeller. Could this be a problem? Is the pump malfunctioning? Any advice would be appreciated. Thanks!
You seem to be having bad luck, so stop using that failing pump. My top suggestion is the Koolance PMP 500—it really handles four GTX 780Ti graphics cards with just 420 + 280 rads at 50% fan speed, keeping temperatures around 70°C. If you decide to go with the Vario D5 next time, try setting it to maximum and use faster fans to offset low flow and high PSI loss. Maybe share photos of your loop and disassembled pump so we can recommend a parallel or series setup using something like the XSPC Ion. To confirm the issue, swap the cable, clear any debris from the impeller cover, and open the motor cover (recoil dynamo).
You seem to be having bad luck, so stop using that failing pump. My top suggestion is the Koolance PMP 500—it really handles four GTX 780Ti graphics cards with just 420 + 280 rads at 50% fan speed, keeping temperatures around 70°C. If you decide to go with the Vario D5 next time, try setting it to maximum and use faster fans to offset low flow and high PSI loss. Maybe share photos of your loop and disassembled pump so we can recommend a parallel or series setup using something like the XSPC Ion. To confirm the issue, swap the cable, clear any buildup by opening the impeller cover, and check the motor cover for coils.
The D5 isn't simple to eliminate. I experienced comparable signs once with a pump that looked similar in design to the D5. I disassembled the pump, separating the motor from the top and removing the impeller. The impeller was secured by magnets, so just pull it out. Examine the channels on top, the impeller, and the motor (notice the ceramic ball in the center). Look for any debris or bearing issues. Clean them with warm water. Create a small loop consisting only of the pump and res, fill it with water and test. If the problem vanishes, remove the rest of the loop, disassemble further, and clean the parts. It's also advisable to replace the tubing. If after cleaning the issue remains (without visible mechanical damage), one of the motor coils is likely faulty. This repair is possible but quite complex.