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LH4 CPU upgrade questions

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LH4 CPU upgrade questions


i'm wondering what the deal is with these stepping versions.

i got 2 dual xeon 550's one with 512kb cach and one with 1mb cach and are working fine, now can i upgrade to a quad using to cpu's with different stepping version then the two allready installed?

i've rad that with newer bios versions it would be backwards compatible with older stepping versions .. this correct ?

and can the cpu's be upgraded by any xeon 550 ? or do i need a special HP LH4 netserver only upgrade kit or something ?

thx in advance