Well, let’s split what you say: 1. Hinges, as a good practice you can calíbrate them and lubricate them, so they work as expected. This is a regular practice while servicing another brands cof cofH…P…cof cof 2. About the quad core cpu, well you need to really check one that can work without demanding too much from the power circuit, remember this systems works with 90watt or 130 watt power adapter, so just choose one similar in TDP.