Machine does not recognize new RAM

OK I purchases some RAM from crucial.com Here is what I bought:
CT442008 Upgrade for a Apple Power Mac G5 (Dual 2.3GHz DDR)
I installed the software but unfortunatelyUnfortunately, the machine does not recognize the new RAM. Both of the slots are listed as EMPTY. My question is -- is there anyway to tell whether I installed in right? Also, is this the correct RAM to buy? I'm a little confused - I would be happy if you could help!
Thanks

Hi,
You don't have this 2.3 do you? The Dual Core? If so you have the wrong RAM.
http://support.apple.com/kb/SP37
If it's the right RAM for your machine make sure the side snaps are up when you put it in and press the RAM in firmly until you hear and see those snaps close down completely. Once your sure the RAM is seated well check again in System Profiler to see if it shows up.
If it doesn't, shut down your mac. As the Hatter said, start up your mac again and hold these keys down until you hear the chime for a second time: Command, Option, P, R. Four keys total until the second chime. Then when it starts up fully go back into System Profiler and see if it shows up.
If that still doesn't do it, shut down your Mac and pull the plug, open up your mac and touch one of those little back plates on the back where your video card is (static electricity) and press the PMU button as described on this page:
http://support.apple.com/kb/HT1436
Remember sometimes it can take a good deal of pressure to seat RAM. Just don't go crazy. But first make sure, looking at the top article, that that isn't the model you have. If it is *do not* try to seat that RAM.
Message was edited by: Samsara

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