Thermalright Ultra-90 K8
Author: Nicholas Sarpolis (NickS)
Hardware Acquired: Jab-Tech
The XP-90 is quite a large heatsink, but cools the mosfets to the left of it, and can be rotated 180º to cool RAM if wanted. I have a dedicated fan for my RAM though, as it gets very
hot under load. After removing the XP-90 & its custom retention module, I've re-installed the stock retention module and applied a blob of Arctic Silver 5 to my CPU. Now it's time to install the Ultra-90. Getting the heatsink installed was by far harder than installing the XP-90. The way the Ultra-90 mounts, it allows the heatsink to rotate 180º fairly easily, even when fully secured down. When installing, my hand would nudge it and it'd move, which was very annoying. Upon getting it mounted, I noticed there will be a bit more stress on the motherboard around the socket, so be careful when moving your case. One quick jolt could send your heatsink flying.
During testing, I encountered problems with my RAM (when OC'ed) overheating, so for the Ultra-90 to have proper load results, a fan needed to be rigged in to blow on my RAM which was getting painfully hot to the touch. With my XP-90, I usually have a fan mounted right on my ram, but with the Ultra-90, you cannot do this. This might cause problems for users like me, with hot running OC'ed ram.
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