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Bitspower D5 Vario Pump

Joined
Aug 22, 2019
Messages
185 (0.10/day)
System Name Donnager
Processor 13900KS, lapped and contact frame
Motherboard Asus Z790 Hero
Cooling Heatkiller IV CPU block, Heatkiller V GPU block, GTX 480mm radiator, D5 pump
Memory 32GB Kingston Fury 7200C38
Video Card(s) eVGA RTX 3080Ti FTW3
Storage Optane 380GB M.2 OS drive, M.2 2TB game drive
Display(s) Alienware 34" Ultrawide 120Hz 3440x1440
Case Fractal Meshify 2 XL
Audio Device(s) Outlaw RR2150 stereo receiver driving DIY kits, Schiit Asgard for Sennheiser HD6XX headphones
Power Supply Seasonic Prime 1000W
I had that same EK reservoir, as well as one of their original AIOs using the same pump. It was fine for AIOs, but definitely not a good open loop pump. Never tested the 10 W version though!

I played around with my pumps last night. I have a GTS360 radiator and Optimus V1 block with some 7/16" tubing. Having that 6W pump pushing through those two yielded a pitiful flow rate because of the V1's restriction.

The 18W flows a pretty hilarious amount of water at full speed through the radiator by itself. Some semi-scientific results of the 18W pump below.
Block + rad at 12V: ~.5gpm
Block + rad at 6.5V (about minimum pump speed): ~.2gpm.
Rad at 6.5V: ~.5gpm
Rad at 12V: ~2gpm. Whoa.

6W pump through block and rad at 12V: ~.2gpm.

I might fool around with these pumps in an O11D Mini ITX build someday for temp vs. flowrate comparisons. 6W might do ok with a lower CPU power limit, or maybe even surprise me.

I wish HardOCP still had their V1 review up. I'd like to see the PQ curve again and compare it against the V2.
 
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Joined
Mar 18, 2015
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Location
Long Island
The MCP 35X2 here will hit its 7 year, 3 month anniversary running 24/7 tomorrow
 
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