RAM not being recognized on iBook G4

I have a late-2004 iBook G4, 256 mb of memory, 133 MHz, 12-inch screen .
I ordered 1 GB of RAM from Edgetech Corp. Their website assured me it would be compatible with my computer. The description of it is a PC-2100 DDR SO DIMM for Apple.
I've followed all the instructions I've found really carefully (and even went back and double-checked my work to ensure that the RAM was properly placed in there) but my computer won't recognize it. The DIMM I/J7 slot is still empty.
Does anyone have any idea what's wrong?
Thank you

Does your original stick of RAM still work? If so, and you know the new stick is properly seated and pushed all the way in and won't be recognized, then you could just have a bad stick of RAM. It happens. If you can't get it to be recognized, and the old stick is, then contact the seller for a replacement.
I don't know if there are any problems with that particular brand, but if the seller says it should work, then it should. Talk to them on the telephone to verify that it is the proper RAM, and arrange to exchange it for a new stick.
Good luck!

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Komputerbay 8GB (2x 4GB) DDR2 PC2-6400F 800MHz ECC Fully Buffered FB-DIMM (240 PIN) 8 GB w/ Heatspreaders for Apple computers
http://www.amazon.com/Komputerbay-PC2-6400F-Buffered-Heatspreaders-computers/dp/ B005HIWDBE/
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hi all
my ipod is not being recognized on the system..
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i tried the 5 Rs thing and i didn't get any king of result..
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bye.

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