Thermalright Ultra-90 K8
A Closer Look Cont.
Author: Nicholas Sarpolis (NickS)
Hardware Acquired: Jab-Tech
A Closer Look
You can see here the Ultra-90 with the stock retention bracket/clip set in place. Taking a look at the thermal paste included, you'll notice it's the usual silicone-styled thermal paste. It'll still work fine for most applications, but for maximum performance you're better off with an after-market solution such as Arctic Silver Ceramique or Arctic Silver 5.
Moving on to the base, you'll notice it has a smooth, semi-reflective base. It is made out of solid copper, which is nickel plated for better heat transfer. The same goes for the six heatpipes. Heatpipes are essentially hollow tubes with a liquid in them, usually water or alcohol. When the base heats up, the liquid evaporates. It then proceeds to rise up to the fins, which cool the liquid back down. The cooled liquid then condenses and sinks back down to the hot base again, in an infinite loop. This is much more effective than the usual fin-on-base style heatsinks. With a fan mounted, the Ultra-90 look's awesome. I'm using my Panaflo M1A, which has a grille and a sleeved tail. The M1A is the reccomended model fan for both the XP-90 and
The Ultra-90 uses the stock retention bracket that comes with your Socket 754/939/940 motherboard (bottom). The XP-90 uses a custom P4/s478 style mounting bracket (above).
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