New RAM in Macbook and it now "beeps"

We replaced the two 512 mb RAM cards with two 1gb Ram cards and despite putting the RAM cards in as per description, upon putting the battery back in, the Macbook does not come back on and just beeps roughly in 3 second intervals. What is wrong?

Thanks

1 beep = no RAM installed
2 beeps = incompatible RAM types
3 beeps = no good banks
4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
5 beeps = processor is not usable

1) Make sure you have installed compatible memory sticks
2) Try inserting the old memory sticks and see whether you can boot the MB. If it works, replace them with new once, one at a time.
3) Try performing the hardware test.

We figured it out after all. They were not all the way in as we were too timid.

It works great now.

On a related note, what do folks here think about crucial.com Ram versus stock Apple/Mac?

Thanks

H

i like newegg ram, always a deal there. fry's is good too.

apple ram is $$$. crucial is sort of $$$ to. If you get crucial ram on newegg, its dirt cheap though!

i have 2gbx2 of OCZ ram, paid 100$ on frys