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I am ready to start filling and bleeding my loop, and I have ran into a problem I can't figure out. I originally build the loop with a Swiftech MCP655 pwm pump I had lying around. It had already run OK in another system for a couple of months, but I took it out and replaced it with an Aquacomputer and put it away. When I connected it to my external PSU in the new loop, it wouldn't run at all, either with the pwm connector plugged in or disconnected. So, I took out that pump, and replaced it with a NIB XSPC D5 pwm, and the same thing happened again!
I'm trying to power the pumps from an external PSU. It's a cheapo I keep around specifically for this, so I immediately suspected the psu was thhe problem, rather than two pumps in a row. But the PSU seems to be OK according to my tester, and it will power molex LEDs from the same connector I was trying to use for my pumps.
What both unresponsive pumps have in common is I sleeved them both. Maybe I got over-enthusiastic when tightening the sleeve and yanked a wire from the PCB inside the pump? Possible but doubtful. Easy enough to check, though, if I knew how to open them up. I've seen pictures of open D5s here, so maybe someone can tell me how to do it?
The other thing they have in common is being installed in a brand new EK Revo top. Is it possible to do something dumb with the top installation that would prevent the pumps from running?
Any tips or suggestions would be much appreciated. I'm stuck!

EDIT: I figured out how to pry the pump open, it's not difficult at all. All wires are still solidly soldered inside the Swiftech, but it won't run! I put together a makeshift loop with just a bucket full of water, and hoses to both the inlet and outlet of the stock housing, and the pump won't run in that setup either.

EDIT: Solved. I had reversed the pins in the molex connections. I was connecting them to the 5V wire instead of the 12V wire.
Edited by jvillaveces - 2/4/16 at 9:09pm
Eldorado
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Eldorado
(24 items)
 
Quantum
(24 items)
 
Overkill HTPC
(18 items)
 
CPUMotherboardGraphicsGraphics
i7 4790k Asus Z97-Deluxe EVGA GeForce GTX980 Ti SC ACX2.0 EVGA GeForce GTX980 Ti SC ACX2.0 
RAMHard DriveHard DriveOptical Drive
Corsair Dominator Platinum 2133 MHz Intel 730 Samsung 850 Pro Asus DRW-24B1ST 
CoolingCoolingCoolingCooling
EK Supremacy EVO nickel-plexi Monsoon Free Center compression fittings (gold) PrimoChill PrimoFlex Advanced LRT crystal clear Alphacool 140mm 
CoolingCoolingCoolingCooling
Aquaero 6 Pro EK-FC Titan X - Nickel (x2) Alphacool Nexxxos XT45 280 mm Black Ice GTS 280 x 60 
CoolingCoolingCoolingCooling
aquacomputer d5 pump mechanics with usb and aqu... Bitspower Dual D5 Mod Top - POM Version Bitspower D5 / MCP655 Pump Mod Top S Model - Ac... Bitspower Water Tank Z-Multi 150 Inline Reservo... 
OSKeyboardPowerCase
Windows 10 Pro x64 Razer Ultimate Corsair AX 1200i Corsair 760T 
CPUMotherboardGraphicsRAM
i7 5930k Asus X99 Deluxe EVGA Titan X SC Corsair Vengeance 
Hard DriveHard DriveHard DriveCooling
WD Black Kingston HyperX Intel 730 Bitspower D5 upgrade kit 
CoolingCoolingCoolingCooling
EK Supremacy EVO Nickel Plexi EK Titan X Original CSQ Monsoon free center compression fittings 1/2-3/4 Masterkleer Clear UV 1/2-3/4 
CoolingCoolingCoolingCooling
Mayhems X1 UV clear coolant Aquacomputer Aquaero 6 Pro Aquacomputer Flow Sensor MPS 400 USB EK Coolstream XE 240 mm 
CoolingCoolingCoolingCooling
Noctua NF-F12 Industrial PPC 2000 pwm Aquacomputer D5 PWM Bitspower D5 mod top Bitspower D5 mod kit 
CoolingOSPowerCase
Bitspower Water Tank Z Multi 100 Windows 10 Pro Corsair HX1000i NZXT Phantom 630 
CPUMotherboardGraphicsRAM
core i5 6500 Asus Maximus VIII Gene  EVGA GeForce GTX 980 Ti 6GB SC+ GAMING ACX 2.0+  Corsair Vengeance LPX 16GB (4 x 4GB) DDR4 DRAM... 
Hard DriveOptical DriveCoolingCooling
Samsung 950 PRO -Series 256GB PCIe NVMe - M.2 I... Pioneer Electronics Internal Blu-Ray Writer (BD... EK Coolstream SE 240  EK Coolstream SE120 
CoolingCoolingCoolingCooling
Swiftech MCP655 PWM EK-XRES 100 Revo D5 Pump Top/Reservoir - Acetal EK-FB ASUS M8G Monoblock - Nickel EK-FC Titan X/GTX980 Ti Waterblock - Nickel 
CoolingCoolingCoolingOS
Monsoon Free Center Hardline Compression Fittin... Monsoon PETG Hardline Tube 1/2 x 5/8  EK-Vardar F4-120 (2200rpm) High Performance Liq... Windows 10 Home 
PowerCase
Seasonic 1050 Watt Gold Steiger Dynamics LEET Chassis 
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