If it's a brand new computer I would guess you have a PCI-X slot. The
Manufacture and Model of the Computer would
help to answer your question. Try not to use all Capitals. It's
considered shouting.
Under Control Panel > System > Hardware > Device Manager.
Info about graphics adaptor under the category "Display Adaptor". It
generally gives you info such as the brand/model of the hardware device like
a graphics card, or network card or any other device connected/installed.
This will tell you every bit of hardware connected, and basic information
about what it is.
Or you can use something like Belarc Advisor which generates a comprehensive
list of information about your hardware/software (www.belarc.com) - freeware
utility.