Q: PowerMac 7.3 shipped without optical drive (DVD-CD)?

It originally came with a Superdrive. Sure it isn't hidden behind a door in the front?

Just press eject key.

georgefrombradford wrote:

...anyway to check original configuration...

http://www.everymac.com/ultimate-mac-lookup/?search_keywords=PowerMac7%2C3

"Mac, iPod, iPhone & iPad - EveryMac.com's Ultimate Mac Lookup.  Lookup Macs, iPods, iPhones and iPads by Apple Order Number, Model Number, EMC Number, Model Identifier, Serial Number and Intel processor number. Find EveryMac.com useful? Please  Bookmark & Share. Please also +1 it:  For a Serial Number lookup, enter the entire serial number to ensure accuracy."

if yours is missing, or needs replacement, here is one option:

http://store.mcetech.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=DVDR22X DT-D&Category_Code=STORDVDRW