<human>: Can you give me the gist of the text in a nutshell?

Dear Reddit,

I'm confused with Clevo X7200 configuration setup, upon choosing the choice of SLI 485M or CrossFire 6970m I get to choose whether or not I want an extra AC Adapter & Power Converter Box. 

Unsure if I should add it or opt out, I called Sager, a tech guy said that with the CPU I chose (i7 960), there's no need to get the extra adapter. 

Still unsure I called xoticpc, they replied that without the adapter there might be a possibility that only one ac adapter will not be able to hold the laptop hunger for power and turn itself off, he said that this might happen in case I run a benchmark and play a game. They also said that you plug both adapters simultaneously (?).
<bot>: So, I'm confused, should I or should I not choose the SLI with the additional AC Adapter & Power Converter Box?