I just have a couple more things to buy for my gaming rig, and it will be done. I want to know if it's important to have a dedicated sound card in a PC. I know, you don't need one whatsoever to get sound, but what benefits do you get from them? I don't have any real surround-sound headphones (just a cheap plantronics headset) although I do have a 5.1 surround sound speaker system I can connect to the PC. I've never had the 5.1 on a sound card before, but it's always sounded pretty surrounding to me. You know, if something makes a noise in-game behind you, you hear it behind you, so they work find with just the motherboard's sound.
-SJ
As has been already pointed out, no you don't NEED an add-in sound card, most onboard solutions sound pretty damn good, have good driver support, plenty of features including up to 7.1 channel, digital audio output, etc. Load on the CPU isn't a worry with multicores, it isn't gonna hurt your game to run onboard. Now saying that, in the last 5 MB's I've had since P965, 2 have had onboard fail. One was Asus P5B Deluxe the other was a DFI P35 LP Dark, both had decent sound, the Asus' sound chip at the time was known for issues so I wasn't suprised to see it go. I ended up getting an X-Fi Xtreme Music, it might be bottom of the line, but it sounds good, well a whole lot better to me than onboard ever has, clearer to my ears than onboard ever could, better bass response, better at picking up things I never noticed in music, plus I've had no issues with it in the last at least 2 years I've used it, including Vista (for those that dog X-fi and Vista, really the lower-end X-Fi's at least mine has done great while those that spent waaay more than my 50 bucks had issues), and now that I have it I use it. But had my onboard not failed me, I would still be using it most likely. Less junk in your rig, less driver hassle, but more limited, creatives EQ is brilliant compared to any onboard solutions' I've ever used which goes way beyond just my personal rigs/builds. But saying that, every generation of onboard gets that much closer to add-in cards' quality, they'll never match a dedicated card, but they're also not that far behind. If you're not used to a sound card, find a rig that has one and listen, if you can use the same headset or speakers, and then compare with your onboard. But I say for now, you don't necessarily need to worry about one unless you want to claim yourself an audiophile or what-not. In the end if your ears are happy, then it's worth it.