Question on adding RAM

As long as it fits - physically - it should be fine. When I added ram to my last desktop computer, the slots were identical, however, one was harder to get at.

Theoretically, as long as the frequency of the two modules are the same, it should work. Unfortunately theory and practice doesn’t always come together and I have in the past had instances where they work and don’t work (depending on the manufacturer of the motherboard)

As an IT best practice for older motherboards and computers it is advisable to get two identical modules in the two slots (that are compatible with the motherboard), but I would suggest you take the computer to an authorized HP/Compaq reseller and ask them to upgrade the memory.

Reason: If you ask them to upgrade the computer to 1 1/2 Gig memory and they install the wrong module, they should essentially supply you with whatever solution you require to end up with what you want, and they should also inform you if it isn’t possible. That way if they install something and it doesn’t work, you can not be held liable for the cost of the modules as they are essentially “specialists” and should have known if it wouldn’t work.

Hope that was somewhat helpful

Thanks to all who answered this.