Beep Noise From installing new ram memory?

I recently purchased memory to replace the stock ram in my macbook7,1 mid 2010. I purchased the ram card's at MemoryDepot.com! I purchased the ram on this website because when i was in the Vancouver, British Columbia official apple store, the representitive informed me that " Apple's Ram cards for your model of computer are way to expensive and that sometimes they do not respond to you computer, I have found a good resource for ram for your Macbook. It is cheap go to MemoryDepot.com" That is what the rep. said. So i went to this website and matched my model numbers and code numbers for the ram from apple that was $210 and then i went to the Memory Depot website and purchased an upgrade, witch was from 2Gb (Stock) to 4Gb.

1 day after i purchased the memory from this website, a rep. from Memory Depot phoned my house phone asking to speek with me. He said that the ram model that i was going to purchase was out of stock. He said that i am going to get 1 samsung ram card (2Gb) and another ram card from another company. He Garunteed the ram to work in my macbook. So i said okay.

2 Days later i got the ram to my house. I went to the apple support website and downloaded and printed the ram memory upgrade guide and followed it to install my new ram. I installed the new ram and closed my macbook and attemped to boot my computer. When i turned it on it was showing a black screen with a sound going, the sound was Beep... Beep... Beep... Beep... Beep... (It was about 3 seconds from Beep to Beep). It kind of scared me, so i removed the new ram and installed my old stock ram cards.

The Names and numbers on this the ram cards.

Manufacturer: ELPIDA (Made in Taiwan)

2Gb 2Rx8 PC3- 10600-9-10-F1

EBJ21UE8BDS0-DJ-F

1018NK812362

CT: RAYRA7FE1Z7MVQ

Colour: Blue

Manufacturer: ??? (Possible Samsung)

Size: 2Gb

SOD1333NS3C92GBN

Colour: Green

Please help me resolve why these ram cards are not working. Thanks Douglas.