Moved my dell dimension 8400 to another location. Now need to access internet by wireless. My 8400 doesn't seem to have wireless card. What card do I need and how to install? Thanks.
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Hello and welcome to Tom's Hardware Forums.
If it doesn't have a built-in chip, buy a USB powered wireless dongle - fifteen quid in the UK, possibly as little as ten dollars US. It will come with a mini CD with a driver - try to avoid the utility software so that Windows can handle it.
When you come to need the security information to connect, you might find our Sticky Post on that subject useful.