Hello I am working on an HP OmniBook XE3, it's a laptop about 4-5 years old. It currently has 64MB PC133 RAM. I am trying to upgrade it to 256 or 512. I have two new 256MB PC133 SO-DIMMs. No matter what combo of both RAM chips, or just one or the other, in either of the two slots, or combining one of the new chips with the old I get the same result - the laptop powers up but I get no display or POST beeps at all.
Help! this needs to go back tomorrow morning.