Date: December 3rd, 2007
Article by: Joe Anderson (Hardware Reviewer)
Edited by: Nathan Glentworth (Owner / Head Editor)
Product was submitted by: Zalman USA
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PRODUCT PICTORIAL AND WALKTHROUGH
Despite the rather large size of the XT, there is little interior room not occupied by tubing, wiring or components. While it's hard to show all the internal components without a complete disassembly of the unit, you can see that 3/8-inch tubing is used throughout and the aluminum reservoir is quite large with heat dissipating fins on three of its sides. The reservoir also features sensors to monitor fluid temperature and coolant level, and the XT uses the information from these sensors to automatically adjust fan/pump speed and initiate a low coolant alarm when necessary.
As mentioned above, there is a tube-and-fin style radiator mounted to each side of the XT allowing the fan to pull outside air through the vents, across the radiators and out the rear of the unit. The rads measure 5 X 7 X 1-inches and consist of copper tubes attached to aluminum fins. Coolant also flows through the finned side rails of the case, adding some passive cooling into the mix.
The pump, mounted under the reservoir, looks a lot like the D-Tek dB-1, and the listed specifications are virtually identical. This is a great little pump with a ceramic bearing and low power consumption that doesn't put much heat into the fluid as it's pumped.
Having all these components housed in a single casing leaves relatively few components that will need user attention. Let's take a quick look at them before we move on to installation and testing.
The CPU waterblock comes with everything you'll need for Intel 775 and AMD AM2/940/939/754 socketed motherboards and supports all processor speeds. The aluminum cap covers a copper base with a 12 X 12 array of round pins to enhance heat transfer. Coolant enters the center opening and exits the outermost fitting.
The base is dead flat and has the highly reflective finish we've come to expect from Zalman cooling products. The plating on the base and the anodized aluminum cap should, it theory, all but eliminate galvanic action and contamination of the system, but untreated copper in the radiator necessitates the careful choice of coolant. That's why Zalman…
…includes a bottle of their ZM-G300 additive. When mixed with distilled water, this stuff will prevent any nasty degradation of the components and facilitate good cooling and long life. The coolant contains a high quality anti-corrosion agent for various materials including copper, aluminum, plastic and other metals that prevents corrosion and has a relatively long service life.
- Material : Propylene Glycol & Anti-Corrosion Agent
- Quantity : 250ml
- Freezing Point : -9C
- Exchange Cycle : 1 year