testing on the spot is not an issue, but u need to understand this is a sealed set. Once u open, the seal will be broken. Three things u need to check and take note:
1. If your laptop can use DDR2 800 sodimm chip,
2. If Kingston chips r supported (usually yes),
3. How much u r offering. (let's not waste each other time if u r offering very low or live very far away ty). I m not going to waste fuel money lol petrol very expansive
Looking for the below items, pm me spec, straight deal prices with hp thx.