There's this strange buzzing noise coming from inside of my printer. It happens whether it's on and off and seems to be coming from this red light i see blinking inside of the printer. It happens every few seconds too.

I want to add an extra drive to my 760 which only has two sata ports. I am using these for main hard drive and DVD rewriter. I need to add an extra peripheral card to drive the new hard drive. I have tried a couple of pci cards with no success.

I have bought an Inpsiron 15r 5521, and i ordered the AMD Radeon Graphics card. The thing is that the laptop Dell sent does not have the graphics card, but only the Intel HD Graphics 4000 adapter.