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keilau02

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  1. Stealthgaming, thank you for all the posting. Unfortunately, in 2013, Corsair changed their pump mounting hardware for the Asetek made Hydro series completely that look very different from your mid 2015 posts. I have a LGA775 motherboard and found that the only way to install the H75 is to get the Asetek mounting kit. http://www.ebay.com/itm/Asetek-Liquid-Cooler-Intel-LGA775-Retention-Ring-Kit-/280938268278 Corsair will not sell you the original series mounting hardware anymore. I found all this out only after I purchased the Corsair H75 kit. While waiting for the Asetek mounting kit to arrive, I decide to do surgery on the Corsair hardware. 1. You must have a LGA775 generic backplate. I expect almost any generic one will work. But you cannot modify the Corsair one coming with the H75 kit. 2. The mounting slots on the metal bracket must be move inboard 1/8" each. I tried to drill it out, but it did not work. Corsair use good gauge hard metal for the bracket. It ruin the drill bit, even carbide ones, quickly. 3. My Dermal with the thin cutting plate did the trick for me. It takes time and must be done carefully. Spark flies, so wear work gloves. The result looks really ugly, but it allows me to mount the water pump head properly and securely on the 775 motherboard. I have an Intel Core 2 Quad Q9550. The CPU temperature runs about 60-65°C with stock cooler. It drops to under 50°C with an Artic-Cooling Freezer 7 Pro. The case is a Lian Li VC-P1200 Plus. When I mounted the H75, the CPU temperature dropped to 24°C in a 20° basement office at normal CPU frequency of 2.83 GHz. I can easily overclock to 3.2 GHz whereas the CPU raised to 29°C. I cannot be happier. I can push the CPU to higher OC frequency, but will stay at 3.2 GHz for now. The H75 kit comes with 2 120mm PWM fans. I have 2 PWM header (4-pin type) on the Gigabyte motherboard (EP45-UD3R). The fans are somewhat noisy if running at full 1950 rpm. Using the MB smart fan control and 4-pin header, they are quite and at 900 and 1100 rpm at CPU and System2 header respectively. Raising the fans to higher rpm has little impact to the CPU temperature.
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