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hanzzon · 04-03-2006, 02:56 PM

Hi, I've just completed building a new watercooling system for my rig, it is compromised of;

Eheim 1048 Pump
Innovatek Reservoir
Black Ice Xtreme 2 Radiator
AquaComputer Cuplex Pro Athlon 64 waterblock
AlphaCool NVXP-3 nVidia GFX card waterblock
AlphaCool SLI Northbridge waterblock

As you can see in the picture I had to use a pretty f***ed fitting layout for the GFX card cooler; since the holes for the fittings are so close I could not use a regular 90° elbow but had to buy the nice one Aquacomputer makes, with the only issue that it was 1/8" and the NVXP-3 takes 1/4" fittings... And same thing for the hose fittings, the store I ordered the fittings from sent me too few fittings so I had to make use of 1/8" to 1/4" converter and then 1/4" hose connectors...

Anyway, the flowrate is very very low, it just only like dribbles out into the reservoir, first I thought I had bubbles in the radiator but I now think it is free from them, and I think the issue might be either that I get cavitation on the suction side of the pump or that it manages to suck in air though the o-ring seal between the Innovatek reservoir and the pumps intake nozzle...

If I tilt the system with the pump off so the intake nozzle point upward the system will be quiet for a few minutes, then it starts rattling again...

So, is the pump not strong enough to push the water though my rather restrictive waterblocks, or what else could it be, any way I can confirm it somehow? I should of course mention that my temps are quite ok, 33°C on Chipset and GFX card, CPU unknow because the tempsensor on the DFI Expert is a bit vary, it reports 32°C but I think it might be 10°C hotter or so... (this is running Rthdribl) CPU is Opteron 170@2.4ghz, 7900GT@Stock...

04-03-2006, 02:56 PM	#1
hanzzon Cooling Neophyte Join Date: Apr 2006 Location: Sweden Posts: 10	Cavitation or Airleak? Hi, I've just completed building a new watercooling system for my rig, it is compromised of; Eheim 1048 Pump Innovatek Reservoir Black Ice Xtreme 2 Radiator AquaComputer Cuplex Pro Athlon 64 waterblock AlphaCool NVXP-3 nVidia GFX card waterblock AlphaCool SLI Northbridge waterblock As you can see in the picture I had to use a pretty f***ed fitting layout for the GFX card cooler; since the holes for the fittings are so close I could not use a regular 90° elbow but had to buy the nice one Aquacomputer makes, with the only issue that it was 1/8" and the NVXP-3 takes 1/4" fittings... And same thing for the hose fittings, the store I ordered the fittings from sent me too few fittings so I had to make use of 1/8" to 1/4" converter and then 1/4" hose connectors... Anyway, the flowrate is very very low, it just only like dribbles out into the reservoir, first I thought I had bubbles in the radiator but I now think it is free from them, and I think the issue might be either that I get cavitation on the suction side of the pump or that it manages to suck in air though the o-ring seal between the Innovatek reservoir and the pumps intake nozzle... If I tilt the system with the pump off so the intake nozzle point upward the system will be quiet for a few minutes, then it starts rattling again... So, is the pump not strong enough to push the water though my rather restrictive waterblocks, or what else could it be, any way I can confirm it somehow? I should of course mention that my temps are quite ok, 33°C on Chipset and GFX card, CPU unknow because the tempsensor on the DFI Expert is a bit vary, it reports 32°C but I think it might be 10°C hotter or so... (this is running Rthdribl) CPU is Opteron 170@2.4ghz, 7900GT@Stock...