I managed to install it. I tried it with a T-bird 1000 CPU in an Epox 8KTA3 board. The mobo's onboard LED "debug panel" reads FF as soon as the power is switched on. To cut a long story short, the T-bird was squashed and killed by the heatsink. The retension clip seems poorly designed, because part of its edge prevents the CPU "arm clamp" from resting in its fully pushed down position. The retension clip pushes the CPU "arm clamp" upwards slightly.

I got it working OK. I used a junior metal hacksaw to cut away a 3mm square section of one of the corner edges on the retension clip. Now, with this part "missing", the CPU arm clamp does not get lifted upwards when the retension clip and heatsink are screwed together. I am testing the Epox board with a new CPU (because the T-bird got killed), and it's a lowly Duron 750mhz. The Scythe Samurai has a variable fan control, and it's currently set to its lowest setting which is 1600 RPM. I've had Prime95.exe running for about 5 minutes, and Sandra 2002 Pro tells me that the CPU temp is about 27C. I think that's very good.

I did another test - I disconnected the heatsink fan's power cable, and so ran with the heatsink in "fanless mode". The boot up desktop idle temp = 25C. I then ran Prime95 for at least 5 minutes. The CPU temp = 33C. Considering that these Durons can go up to 90C, I reckon you could run them without the fan on. (Please note that CPU heatsink paste was used for all tests.)