What should I do if my HP t630 Thin Client displays the 'Out of Memory Space for Option ROMs' error?

If encountering this issue, remove any recently added PCI expansion cards to see if problem persists. In Computer Setup under Advanced > Device Options set NIC PXE Option ROM Download to Disable to conserve memory space; save changes and exit setup to prevent the internal NIC's option ROM from being downloaded during POST (Page A-3 BIOS setting).