| The QEMU PC System emulator simulates the following peripherals: | 
 |  | 
 | -  i440FX host PCI bridge and PIIX3 PCI to ISA bridge | 
 |  | 
 | -  Cirrus CLGD 5446 PCI VGA card or dummy VGA card with Bochs VESA | 
 |    extensions (hardware level, including all non standard modes). | 
 |  | 
 | -  PS/2 mouse and keyboard | 
 |  | 
 | -  2 PCI IDE interfaces with hard disk and CD-ROM support | 
 |  | 
 | -  Floppy disk | 
 |  | 
 | -  PCI and ISA network adapters | 
 |  | 
 | -  Serial ports | 
 |  | 
 | -  IPMI BMC, either and internal or external one | 
 |  | 
 | -  Creative SoundBlaster 16 sound card | 
 |  | 
 | -  ENSONIQ AudioPCI ES1370 sound card | 
 |  | 
 | -  Intel 82801AA AC97 Audio compatible sound card | 
 |  | 
 | -  Intel HD Audio Controller and HDA codec | 
 |  | 
 | -  Adlib (OPL2) - Yamaha YM3812 compatible chip | 
 |  | 
 | -  Gravis Ultrasound GF1 sound card | 
 |  | 
 | -  CS4231A compatible sound card | 
 |  | 
 | -  PC speaker | 
 |  | 
 | -  PCI UHCI, OHCI, EHCI or XHCI USB controller and a virtual USB-1.1 | 
 |    hub. | 
 |  | 
 | SMP is supported with up to 255 CPUs. | 
 |  | 
 | QEMU uses the PC BIOS from the Seabios project and the Plex86/Bochs LGPL | 
 | VGA BIOS. | 
 |  | 
 | QEMU uses YM3812 emulation by Tatsuyuki Satoh. | 
 |  | 
 | QEMU uses GUS emulation (GUSEMU32 http://www.deinmeister.de/gusemu/) by | 
 | Tibor \"TS\" SchΓΌtz. | 
 |  | 
 | Note that, by default, GUS shares IRQ(7) with parallel ports and so QEMU | 
 | must be told to not have parallel ports to have working GUS. | 
 |  | 
 | .. parsed-literal:: | 
 |  | 
 |    |qemu_system_x86| dos.img -device gus -parallel none | 
 |  | 
 | Alternatively: | 
 |  | 
 | .. parsed-literal:: | 
 |  | 
 |    |qemu_system_x86| dos.img -device gus,irq=5 | 
 |  | 
 | Or some other unclaimed IRQ. | 
 |  | 
 | CS4231A is the chip used in Windows Sound System and GUSMAX products | 
 |  | 
 | The PC speaker audio device can be configured using the pcspk-audiodev | 
 | machine property, i.e. | 
 |  | 
 | .. parsed-literal:: | 
 |  | 
 |    |qemu_system_x86| some.img \ | 
 |    -audiodev <backend>,id=<name> \ | 
 |    -machine pcspk-audiodev=<name> |