Ok, I've been testing my 2.4b SL6EF C1 stepping chip for awhile tonight and I am very impressed.
Asus P4B533-E board with 1014 beta 2 bios. Onboard USB/LAN/RAID/Sound enabled
Corsair pc3200 CAS 2.5 XMS (Highest I could get it to go @ 2.7 volts was 430 mhz stable)
Geforce 4 ti 4200 (300/600)
With Memory @ 1:1 currently, I am at 174 mhz bus, processor @ 3.131 ghz and still going. I have the voltage @ 1.625 but I bet I could lower it without problems. Still testing.
BTW, the pack date on this processor was 11/27/02, from the phillipines