Which golden orb fits a slot 1 Celeron 300A?

[lifeguard1999]

I have a slot 1 Celeron 300A with a retail heatsink and fan that does
464 MHz stable. At 472 it boots into windows, but crashes if I try
to open anything. Thus, I think that it could go higher with better
cooling. I would like to get a golden orb, but which one fits a SEPP
slot 1?

 

[Vegito]

YEs but I would go with other coolers for Slot1...

 

[BCool]

Get an alpha P3125 w/celeron back plate. Before I put one on my 300a, I could do 464 at 2.0 but couldn't get 504. Now I can run RC5 at 504 (2.1v) as long as I shut down background apps. My thermal probe reads it as cooler than my BX6R2 (my version is missing the resistors to read the internal die temp).