if you still know your service tag number you can go HERE and use the enter your service tag option to access the drivers that are specifically for your system.  Exactly what do you mean by customized your system Did you just add stuff to it or did you gut it
  Hi, i have recently reformatted my com but cant find the driver downloads , so currently i have no sound can anyone help me? drivers: Intel Corporation 82801G (ICH7 Family) SMBus Controller Intel Corporation 82801G (ICH7 Family) High Definition Audio Realtek Semiconductor RTL8168/8111 PCI-E Gigabit Ethernet NIC    if possible can u please provide the executive file or tell me how to install it?
Help!