Fake Pentium II 400?

[x86sniper]

Got a retail version Pentium II 400 with factory cooler attached

On my Asus P2B-VM it does boot at 400MHz and enter windows
but a brief look at the cpu-z shows a cpu name string as Pentium II 266MHz

since 266MHz shares the same multiplier as 400MHz, I'm thinking if it is a remarked cpu

CPU is in SECC package instead of SECC2

code:
B80523P400512E SL2SH 2.0V
98300880-0029 MALAY

anybody can shield some light on the mistery?

thx~

[Root]

Maybe this is glitch of MoBo. I saw analogical simptoms on old Slot1 MoBos (for example, Chaintech 6BTM0) with a wide range of CPUs. On another MoBos there weren't such problems, so try another MoBo.