Apple will not boot up after RAM upgrade

I purchased 2 Centon 2GB (PC2-5300 SO-DIMM DDR2-667) sticks of ram. I know my machine's max is 3GB. I read that 2 2GB sticks will work with my model. The computer will recognize 4GB, but only use 3GB. After I install the RAM and turned the computer on nothing happened except the night light on the front just flashed very quickly. I have tried different configurations of the ram such as swapping the sticks and only using one stick at a time, but the same thing happens. My only guess is, I purchased two sticks of bad ram. Any help would be appreciated.

Put the old RAM back in and see if it works. If it does, the problem is the RAM you bought. If not, you may have damaged something in the process of installing the new RAM, in which case you should give it a thorough visual inspection. If you don't see anything, you may have zapped something with a static discharge, in which case it will probably be time to buy a new iMac.

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