Waterblock Test – Joe
SUMMARY: Very good choice for CPU cooling with moderate-high power waterpumps.
The Viscool CPU V2 features
- 5mm copper base with aluminium top
- Nickel steel fittings with outside diameter of 10mm, on request 12mm, thread: G1/4, Screw connector AG 1/4′ on 10/8mm
- Waterblock mounting adaptable to all current CPUs
The copper base features an interesting design:
You will notice below that the Viscool CPU V2’s pressure drop is fairly high – this is due to its interior design.
The base is well finished; I used the Poor Man’s Flatness Test on it with good results:
Rotating the base 90º:
This view is more difficult to see as the polishing marks are circular.
Mounting involves fixing four brackets to the top of the waterblock:
You can orient the brackets to fit just about any configuration. Included with the waterblock is the mounting hardware:
The Viscool CPU V2 was tested using the CPU Die Simulator and Waterblock Test Rig.
Pressure Drop – psi
Pressure Drop – inches H2O
|Viscool CPU V2|
Unrounded data: 0.129 C/W with .001 std dev.
Test Results indicate that the Viscool CPU V2’s pressure drop (or head loss) across the waterblock is moderately high; flow resistance such as this means that Viscool CPU V2 will require a good waterpump – anything less than 300 gph might compromise results, depending upon how restrictive other components are in system.
I found that reducing flow to 0.5 gpm resulted in a performance decrease of about 0.7ºC and increasing flow to 1.3 gpm resulted in a gain of about 0.4ºC.
For a comparison of the Viscool CPU V2’s performance to other waterblocks tested to date, see Overclockers.com Waterblock Test Results.
Viscool’s CPU V2 Waterblock is a very good choice for CPU cooling; the Viscool CPU V2 should perform well with moderate-high power waterpumps (300 gph or more), as long as other components do not unduly restrict waterflow.
Thanks again to Viscool for sending this our way.