New 92mm-fan Tower Coolers from Noctua

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The most critical aspect of installation is that the heatsink be securely mounted, as good contact between the cooler's base and the CPU heatspreader provides more efficient heat conduction. Ideally it should also be a simple procedure with the user having to handle as few pieces of hardware as possible. Noctua's system is renowned for hitting all these marks.

The Intel backplate with fixed bolts for LGA115x motherboards only. LGA2011 is also supported but doesn't require a backplate.

Simple to assemble and incredibly effective, the installation scheme is one of the best in the business. The backplate bolts go through the motherboard mounting holes from the back side, plastic spacers are slipped over them to get them to the proper height, and the mounting clips are attached with thumb-nuts. The spring-loaded bolts on the heatsink itself complete assembly.

The U9S just fits within the space allotted for a CPU cooler on our LGA1155 test motherboard. Note orientation of the IMB3 bars.

The D9L fits in the same space as the U9S. Note the IMB2 bars are oriented perpendicular to IMB3 bars for the U9S.

TIM imprint of U9S after testing was complete shows very good contact across the center where it counts. There may have been a touch too much TIM.

TIM imprint of D9S is better, with a bigger contact area. Our sample's base may have a profile that fits better against the heatspreader of our CPU as some variation in base flatness is just unavoidable. There is unlikely to be any difference in contact pressure as they use the same spring loaded bolts.

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