Not that it matters much in the grand scheme of things, but it does gets the chip recognized at boot time.
Index: pcidevs =================================================================== RCS file: /cvs/src/sys/dev/pci/pcidevs,v retrieving revision 1.1669 diff -u pcidevs --- pcidevs 8 Feb 2013 07:58:18 -0000 1.1669 +++ pcidevs 16 Feb 2013 19:40:38 -0000 @@ -1500,6 +1500,7 @@ product ATI RADEON_HD6250_1 0x9804 Radeon HD 6250 product ATI RADEON_HD6250_2 0x9805 Radeon HD 6250 product ATI RADEON_HD6320 0x9806 Radeon HD 6320 +product ATI RADEON_HD6450 0x6779 Radeon HD 6450 product ATI RADEON_HD7290 0x980a Radeon HD 7290 product ATI RADEON_HD2600_HDA 0xaa08 Radeon HD 2600 HD Audio product ATI RS690M_HDA 0xaa10 RS690M HD Audio from dmesg: pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel G41 Host" rev 0x03 ppb0 at pci0 dev 1 function 0 "Intel G45 PCIE" rev 0x03: msi pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "ATI Radeon HD 6450" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) azalia0 at pci1 dev 0 function 1 "ATI Radeon HD 6400 Audio" rev 0x00: msi azalia0: no supported codecs azalia1 at pci0 dev 27 function 0 "Intel 82801GB HD Audio" rev 0x01: msi azalia1: codecs: Realtek/0x0887 audio0 at azalia1
