Leaderboard

Both are fine. In fact, a laptop can handle even higher range of voltages just fine, and especially high-end ones like EliteBook series. Yes, this is a known issue for laptops that were spilled on with Coca-Cola or beer :)) Stock+defaults should be always fine, unless you need something fancy. Maybe read what others achieved modding BIOS in that case Got a ~$5 2xUSB3.0 card on AliExpress got very good speeds, but rather fragile build quality.

Hi! You can upgrade your i5 2450M to i7 2630QM just plug and play, without bios modification.

Hi! Ok. Check PM.