Compaq/HP only has modem and keyboard/mouse drivers posted for this model.
Since this is a desktop, you can use Everest Home Edition to help you to id the hardware and find drivers.
To find make and model of pc hardware, EVEREST Home Edition is a free system diagnostics, system information program that will id most hardware onboard a mb. as well as the actual motherboard.
Alternate Everest download link: (offers 2 sites to dl program from)
Run the program and then:
Click on Computer
Click on Summary
Right hand window (hardware) if the text is blue
this is a link to the web site for that particular hardware.
If you have additional questions or need further help, please post a SUMMARY report from Everest.