I can find this chip present at Pentium II-400 MHz Slot 1
I can confirm you this chip is present at Pentium III-450 MHz Slot 1-
I can find this chip present at Pentium II-400 MHz Slot 1
sSpec SL3F5 is also used at Pentium III 450MHz
I can confirm you this chip is present at Pentium III-450 MHz Slot 1-