ZM-GWB2 GPU Water Unit
Those of you who remember the old Zalman water units for graphics processors, will certainly understand that the new GPU block design is not another way of ripping off the users, but a necessity.
The new GPU unit can also be sold as an independent product from Zalman:
The package contains the GPU water unit itself, graphics memory heatsinks, a resilient clamp, some stands, screws, plastic pads to go under the screws, tube clamps, user’s manual and an irreplaceable tube of Zalman’s brand name thermal paste:
The resilient clamp with twi pairs of fastening holes is intended to fit for any graphics cards from the ATI RADEON 9***/X*** and NVIDIA GeForce 4 MX / GeForce FX / GeForce 6 families, up to RADEON X850 XT and GeForce 6800 Ultra Extreme. Yes, this is no mistake, now the company is so confident about the quality of their water unit that they allow installing it even on the hottest of the contemporary graphics cards:
GeForce 7800 GTX and ATI R520 do not count, because the former is cooler than GeForce 6800 Ultra, and the latter hasn’t been announced yet.
The new GPU water unit can also be taken apart, just like the CPU unit, we have just discussed. So, let’s see what it looks like inside:
The idea is the same as by the CPU block: a footing with s grid, a lid and rubber gasket. This time, however, both parts of the unit are made of aluminum and the lid doesn’t participate in directing the water flow. In the CPU unit the lid gets so close to the top of the ribs inside that the water has to flow through the ribs. Here the grid is only ј above the bottom of the footing. The contact surface of the GPU unit is not mirror polished, you can clearly see the machining tracks on it:
You can see from the picture that the contact surface is slightly sticking out above the rest of the unit. This way the GPU unit will not end up sitting on the protective frame instead of the actual graphics processor die by some graphics processors.
Again, as far as the efficiency of the new GPU unit is concerned, we will find it out in a little bit when we move on to the testing results.