HP XW4300 Workstation Desktop PC specs,
http://h18000.www1.hp.com/products/quickspecs/12260_na/12260_na.HTMLScroll down to you come to the bold heading -Standard Features - SpecsGo down the chart on the left side until you come to -Interfaces Supported1 SATA 3Gb/s interface (4 Serial-ATA connectors), 1 EIDE interface for optical drivesOne EIDE interface. That is the Blue 40-pin connector, on the right side of the Ram Memory slots. (39-pin actually)(Right next to the Black Floppy Drive 34-pin connector, and above the 4 SATA connectors)Compaq Presario S6200cl Desktop PC >Main Support page,
http://h10025.www1.hp.com/ewfrf/wc/product?cc=us&lc=en&dlc=en&product=390423Product Information > Product Specifications > Product Specifications,
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00056951&tmp_task=prodinfoCategory&cc=us&dlc=en&lc=en&product=390423Scroll down to the bold heading -Hard drive120GB Ultra DMAIt is an EIDE harddrive.
http://en.wikipedia.org/wiki/Parallel_ATAHP XW4300 Workstation motherboard example,
http://www.ebay.com/itm/HP-XW4200-XW620-DDR2-MOTHERBOARD-358701-001-SOCKET-775-/110904128317?pt=Motherboards&hash=item19d266b33dThe answer is Yes.Connect just the EIDE harddrive from the Compaq. Make sure the correct jumper pins on the back of the harddrive, have a jumper cap on them to set them to Single;OR,The IDE harddrive model you have may Not use a jumper cap on any jumper pins, for some models of harddrives, to set the harddrive as Single.Look up the harddrive jumper settings on the internet.Start with the model number on the label of the harddrive.Example; WD2500JBWestern Digital 250GB harddrive that is IDE. (EIDE)Western Digital jumper settings for IDE (EIDE) harddrives,
http://wdc.custhelp.com/app/answers/detail/a_id/463/c/123/session/L3RpbWUvMTM1MjE4NDY3Ni9zaWQvQnoxcVF6YWw%3DYou will need a SATA optical drive now.BIOS Setup > Boot Options > Set the first boot device to CDROM.Install Windows disk.Use IDE harddrive, and IDE optical drive on the same flat ribbon IDE cable?Can be done, but usually is a HEADACHE, and MAY not work.BIOS looks to see what drives are connected. It looks for the drive with the Operating System on it. (Windows)Now put a disk in the optical drive. Time has to be divided between the harddrive, and the optical drive.IF it does work; when you are using the computer, and the optical drive you will know the real meaning of Slow.Have a SATA optical drive?Regards,joecoolvette