H61M-P23 B3 With I5 2500k - Is the multiplier locked?

Question

I have seen a couple posts in some random places that say you cannot use an unlocked processor (K) with the 'H61M-P23 B3' motherboard. Can anyone verify this with a reference or explain their certainty? The posts in question all seem to state that a P67 board is required.

Answer 1

It is true, if you take this article about different chipsets as an example (one of the first results google showed).

about the H67:

The downside is the H67 supports only very limited overclocking [...]

and about the P67:

It [P67] also is capable of being overclocked, and that combination of features have made it popular for gamers and other demanding users.

The board from your question only uses the H61 chipset, but regarding your question the answer is the same.