|The i7 uses DDR3 which has different voltage requirements than DDR2. |
DDR2 RAM that conforms to the JEDEC spec runs at 1.8v. The JEDEC spec for DDR3 is 1.5v. So why is the 1.65v limit "lame"? Higher voltage doesn't mean higher speed, it means higher temps & a higher chance of failure.
You need to stop asking lame questions & start doing some research. You work a a computer shop, right?