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I had two Thermaltake Extreme 2.0 coolers - one cooling my GPU (7970) via the popular mod, and the other on the i5 2500k. This was only due to the unreasonable price of building a water cooling loop - buying the parts separately was very expensive for no apparent reason.

After running this for a good while I decided I would try to combine both CLC's into a single larger loop. This was in part to accommodate a full cover GPU block. Decided to go ahead and get one since I've never sprung for a top of the line GPU before - in the hopes that it will extend its lifespan.

Unscrewed the screws on the pumps to remove the fittings which allowed me to drain both CLCs. I broke the fittings loose from the tubing by twisting the fitting against the tubing. Then I pulled the fittings out of the tubes - and proceeded to pull the tubes off of the radiators. Everything came apart fully intact - but you do have to pull quite hard. (if it hurts your fingers - that's how you know your pulling hard enough) One guy online suggested if you can't pull them apart - that you may be able to get a small screwdriver under the edge of the fitting covers - and work that down between the fitting and the tube. This method seems likely to leave visible damage.

Between the four 13" tubes I was left with I had enough to do the whole loop. I think that running mostly water has significantly improved the loops ability to dissipate heat. The stuff that was in the coolers before was pretty thick and nasty.

Before After
GPU Idle 32 24
GPU Load 59 37
CPU Idle 31 27
CPU Load 81 66

Overall it feels like a great success. 7970 VRM temperatures are also down by a healthy 40C.

I would show pictures - but I know people are offended by poor cable management.

It was a single afternoon project and turned out even simpler than I had expected - I would encourage anyone with a CLC looking to expand their system to give it a try.
Edited by Subcutaneous - 3/12/13 at 10:13am
Ginormous M-ITX
(11 items)
 
Girlfriend's Rig
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k Asrock Z77E-ITX AMD Radeon HD 7970 ASUS DC2T Samsung Green DDR3 
Hard DriveHard DriveCoolingMonitor
Patriot Pyro Hitachi - 2.5" Custom Loop - made from 2 Thermaltake Water 2.0... Auria 27" 1440P 
PowerCaseMouse
PC Power and Cooling 600W Modular Bitfenix Prodigy Microsoft Sidewinder 
CPUMotherboardGraphicsRAM
intel g850 MSI P67s c43 EVGA Geforce GTX 480 G skill 
Hard DriveOptical DriveCoolingOS
Patriot Pyro LG DVD Antec 620 7 
MonitorKeyboardPowerCase
KDS 22" k120 logitech Antec Neo Eco 520W Azza Triton 401 
Mouse
Sidewinder X8 
  hide details  
Reply
Ginormous M-ITX
(11 items)
 
Girlfriend's Rig
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k Asrock Z77E-ITX AMD Radeon HD 7970 ASUS DC2T Samsung Green DDR3 
Hard DriveHard DriveCoolingMonitor
Patriot Pyro Hitachi - 2.5" Custom Loop - made from 2 Thermaltake Water 2.0... Auria 27" 1440P 
PowerCaseMouse
PC Power and Cooling 600W Modular Bitfenix Prodigy Microsoft Sidewinder 
CPUMotherboardGraphicsRAM
intel g850 MSI P67s c43 EVGA Geforce GTX 480 G skill 
Hard DriveOptical DriveCoolingOS
Patriot Pyro LG DVD Antec 620 7 
MonitorKeyboardPowerCase
KDS 22" k120 logitech Antec Neo Eco 520W Azza Triton 401 
Mouse
Sidewinder X8 
  hide details  
Reply