RX 240 / H220 Radiator / GTX580 EK FULL COVER BLOCK
The next thing that most people will add to a water cooling loop is their GPU. I just happen to have a couple of GPU’s and blocks laying around, so I decided to throw one into the loop and see if the pump Swiftech put in the H220 is really strong enough to deal with the restriction of a CPU and GPU block. Both radiators were used in this test.
The first thing I did was to run IBT again to see how the GPU block in the loop would affect our CPU temps with such a high overclock still applied.
Results:
Ambient temps: 22.78C/73F
Max overclock: 5.0 ghz/1.480V vCore (Did not lower, just a minute fluctuation)
IBT temps: 76.25C core average
As you can see adding the GPU block did increase our temps. Fortunately it was only by 2 degrees celsius. We are still well inside the temperature limits for our CPU.
Next I ran the Uningine Valley Benchmark set on the Extreme HD preset for one run and recorded the temperatures after:
Ambient temps: 22.78C/73F
Max overclock: 5.0 ghz/1.480V vCore (Did not lower, just a minute fluctuation)
Uningine Valley CPU temps: 54.75C core average
Uningine Valley GPU temps: 44C
Not bad at all considering this is very similar to what you would see while gaming on this setup. I am very impressed with these results considering all the restriction we have in the loop.
The reason your temps went up after you replaced the tubing was because you used smaller diameter tubing. Also, I’d be interested to see the results obtained with the full loop (sans second radiator) if you used tubing matching the original dimensional specs. Using smaller inner diameter tubing adds significantly to the flow restriction of the loop, which can (and will) negatively impact cooling performance secondary to degradation of pump pressure. A good article, though. It’s refreshing to see a review site hold a manufacturer to their word. Swiftech’s was that you could add cooling blocks to the H220, and, indeed you can. I’ve been wondering when one of the AIO producers would quit screwing around and switch to copper radiator. Kudos to Swiftech for taking that next (if obvious) step.
strapmonkey
Glad you enjoyed the review!
Actually though we did use the same inner diameter tubing as what came with the cooler. Ours simply had smaller outer diameter. This really should not have any impact on temps or flow at all. It was very interesting that the temps were negatively impacted by the change.