Guys,
My 8K5A3+ came in yesterday... I finally restored my OS (Win2K), so I'll be doing some minor OCing tonight and will post results tomorrow. On a side note, regarding the AlphaPal 8045, it is AN EXTREMELY TIGHT FIT. I got the Epox version with rectangular Northbridge, and I had to basically force it in there, because below it (behind the "step" of the Alpha) there was one of those round cylindrical transistors(?) in the way. You have to push it against this transistor so they are touching when mounting is complete. Also, on the side of the Alpha that faces the Northbridge HS, is a white plastic screw(?) on the Northbridge HS that prevents the Alpha from mounting on the CPU. To fix this, I used a small screwdriver to bend it to its left, and allow the Alpha to mount. But this plastic screw is now pressed against the Alpha as well.
All in all, if you can get a smaller HSF, I would recommend it, or you can just cram it on there like I did.
~Rob