According to HP it is the 500 MHz celeron,

For more info, go here: http://www.hp.com  and type in : 4550 in the search
box at the top right of the page.  click search.  You will be presented with
lots of links for your model

hope this helps

Pat Langston
----- Original Message -----
From: "Donald Gaither" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, March 14, 2002 2:19 PM
Subject: [PCBUILD] Max CPU on a HP 4540


Hi,
    Does anyone know the maximum Celeron CPU an HP 4540 can handle?  Also,
it is currently running 433, do I need to change the motherboard jumpers
any?

Thanks in Advance,
Donald Gaither

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