Cooler Master Hyper Z600 CPU Cooler: A Real Heavyweight

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The base.

The large number of heatpipes and the relatively small base means the heatpipes are positioned very close together in the base. The nickel-plated copper base is very flat, and finely polished, with a small divot at the center, suggesting a circular polishing device was used.

Mounting hardware and accessories.

The including accessories include a variety of mounting plates, fan brackets, nuts, screws, and washers. From the amount of materials provided, you can probably guess at the complexity of the installation procedure.

LGA775 mounting arms.

For LGA775 installation, four screws must first be threaded through two mounting arms. Washers are then placed over them. The threading of these screws is the reverse of the norm; you turn counterclockwise to tighten. This is to avoid interference when the nuts on the other side are threaded on or off.

Mounting arms installed.

The mounting arms are then screwed onto the base. At this poin,t the screws have become threaded rods anchored to the base. The shape and size of the fins makes it impossible to remove the screws when the mounting arms are attached to the heatsink.

Backplate installation demonstrated.

The image above shows how the mounting system works. The screwdriver illustrates where the motherboard would be. The screws go through the holes on the motherboard and the holes on the metal backplate, and four nuts are used to to secure it.

Lug nut.

To tighten the nuts, a lug nut is provided. It must be used with a philips head screw driver. This is unnecessarily awkward. A complete nut driver would have been far more useful.

Lug nut and nut.

To make things worse, the backplate has a ridge around the rim, making it difficult to get a proper grip on the nut, especially as the nut is tightened.

Backplate secured.

The instructions suggest flipping the motherboard upside down onto the heatsink — we decided it was safer as a two-person job, with one holding the motherboard and heatsink steady, and the other screwing the nuts in. The manual also states that the backplate is optional even though the Z600 weighs over a kilogram; we would not contemplate installation without the backplate!

While installation is difficult, when it's finished, the heatsink is extremely secure. There was no give once the heatsink was on.

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