i use an epox 8kda3j board on my system (socket 754, nforce 3 250gb set). ever since i built this system of mine (which was about half a year ago) i've been using my old system's pci lan card (a 3com card) instead of the onboard 1gbe lan, and my old system's sound pci sound card (some old creative card...) instead of the onboard 8.1ch audio. now, what im asking is, is this wise? does this make my system perform less efficently? would it be wiser for me to use the onboard stuff instead or the old stuff? (it probably would, but i still feel like asking) my system now works pefectly fine, and it will probably work perfectly fine if i do the switch, im just thinking if its worth the hassle? now regarding to the 8.1ch audio, it really dosent matter, since i only have a pair of smallish speakers and a rather weak sub i pathced together. and i dont intend to replace that anytime soon. so what im asking is basically, would my system's overall performance be improved if i used the onboard sound instead of this old pci card? same pretty much goes for the lan card/onboard lan issue. i dont run a lan, and im only using this lan card as a connection between the computer and my adsl switch/router. err.... i've rambled long enough about this... feedback, please.