I have the DTek core. I am running a maze2 with a xp 1800 running @ 1725 MHZ and my coolant temps only go down 2-3 degrees celcius whether i run the one Panaflow H1A @ 12 or 7 volts. I am confident that will keep your system cool at 7 volts. When mine is at 7 volts my PSU fan is loudest in my system.
Note: you may want to add items to your watercooling rig in the future. The XLR 120 Radiator would give you alot of headroom.
Brian W
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Water Cooled Inwin Q500 (Dual Rads: Rad1 = DTEK Pro Core | Rad2 = Blick Ice Estreme, Hydor L30, Dangerden Maze2, Bay Res Typhoon Reservoir, 1/2 " DD Tygon Thick Wall Hose).
Flow: Res, Pump, CPU watervlock, Y into both rads, both rads into res independently.
Athlon XP 1800+ (@ 1731 - 150mhz fsb.), on a Asus A7N266-c, and a Radeon 9000 *waiting for RMA'd Saphire 9800 ultra from Newegg)
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