1st attempt, fan loud. Ps3 lasted about 2 wks. 2nd attempt noticed very poor contact between heatsink & cpu,gpu when taking it apart. Research - Found a better way to apply thermal past. I personally disapprove of guide on this. A small bit about the size of a grain of rice in center of cpu is plenty. Clamp the heat sinks back on. Then take it apart & check contact area. Thermal paste should have spread to about the size of a quarter.(more is better. Less then a nickel size is poor contact) possibly weak clamps. Carefully applied pressure onto the cpu & gpu, pressing them into the heatsinks before clamping heatsink clamps on. Achieved greater then quarter sized thermal past spread. Fan silent in comparison & ps3 lasted about a yr. Rarely did I ever hear the fan go to high and get loud after that. About to begin my third fix on this same ps3. One of the first 80g backwards compatible. other then those notes and that this guide was for a different model ps3 (minor differences) I liked this guide. easy to follow.