need help with laptop

[jadakiss]

i have a hp compact nx 6120 notebook which is too slow i brought new ram for it today but it now wont turn on. if i take it out then it works fine again. what could the problem be????

[thephilosophizer]

Well, my first two questions are these. Did you check in advance to make sure you got the right ram, there are many different speeds and types. And two, have you ever done something like this before? Putting new ram in is a seemingly simple enough thing, but it is important to be sure that you are grounded, because a static shock from your body can fry the ram chip, and give you the problem you are having.
And as a separate note, if you can, it would probably be better to not add one ram chip, but to replace the first and put two new ones in so you can utilize dual channel, which will make the memory run faster.

[jadakiss]

i think the guy at the shop sold me the wrong one after further investigations online. he sold me a ddr400 what would u recommend to buy

[#43 fan]

The RAM seems the right type, but perhaps it was faulty or incompatible with the RAM that was previously installed.
Try the new RAM by itself.
If the RAM was of the wrong type it would've fried the RAM, at least potentially.

[thephilosophizer]

I think I see where your problem is, your laptop is spec'ed for ddr2-400, not ddr-400. If you got the older ddr, and not ddr2, it won't work. Take it back, though the ddr2 may cost a little more (I don't think it was ever a very common speed).