Can I stick some extra memory in my iMac 27"?

[just.because]

I just found out that my new iMac 27" has four memory slots, and only 2x2GB are filled. I have 2 x 512 MB something Hynix Korea 04? Is it compatible with my iMac? Can something happen' if I put it in?

 

[old-wiz]

I just found out that my new iMac 27" has four memory slots, and only 2x2GB are filled. I have 2 x 512 MB something Hynix Korea 04? Is it compatible with my iMac? Can something happen' if I put it in?

Highly unlikely the old sticks will work; they will probably not even fit in the slots; forcing one in can damage the machine. specs for the iMac ram can be found either on the apple site or at a site that sells ram - they will tell you what kind of ram you need. No idea how to identify exactly what your old ram is.

 

[phySi0]

You can try, but I'd recommend just buying some better RAM if you want to upgrade it. I don't know how easy the upgrade is, but you might as well do it maxed the first time.