BL465C G1 reporting 2mb l2 cache? but the rest have 1mb L2 cache

[Koopa]

I had a fault on a BL465c which i've replaced the system board. This for some reason is working fine, but on the ILO page, on the processors tab it shows it's a 2.4ghz cpu with 128kb L1 cache and 2048kb L2 cache. But the other 7 blades in this chassis all have 2.4ghz cpu's with 64kb L1 cache and 1024 L2 cache.

Would a diffent version of ROM unlock extra cache, could the cpu's in the blade be different? If so is there quick way I tell what cpu model is installed in each blade?

[Koopa]

I have since seen the servers post the cpu's go through post. they are both running 2216 HE cpu's but one server says 1mb l2 cache and the other says 2mb l2 cache.

from what i have googled, i see these cpu's should have 2x1mb l2 cache. Is it possible the old rom only shows 1 core cache, and the newer rom is showing both cores added together?