Noticed in the device manaer a missing device driver. To troubleshoot, I found if I remove the pci riser card (with 24v usb and 2 pci ports) the error goes away. Tried to find a driver, no luck. This pc is not connected to the internet, stand alone. I moved it to a network connection and ran the hp mising driver program, none found. Hardware id is PCI\VEN_1283&DEV_0893&SUBSYS_00000000&REV_52
PCI\VEN_1283&DEV_0893&CC_060401