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\" Schütz. 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>