Motherboards and their chipsets often come from different manufacturers. The mods described also work with B75 Chipset motherboards. Slotkets are special adapters for using socket processors in bus-compatible slot motherboards. In addition some Nvidia motherboards come with integrated onboard GPUs. Starting from LGA 775, socketed Intel Mini-ITX motherboards have been released by Intel and Zotac. Hybrid SLI is also available on desktop Motherboards and PCs with PCI-E discrete video cards. It is located in the Platform Controller Hub of modern Intel motherboards. Realtek currently supplies most of HD Audio codec chips used on motherboards and standalone cards. It was thus incompatible with the new Pentium 4 motherboards. An example is Intel Matrix RAID, implemented on many consumer-level motherboards. It was used only on high-end Athlon MP motherboards. By 2010, few new motherboards had AGP slots. In early 2007, about 90% of all PC motherboards sold had an integrated GPU. VIA also includes the VIA Envy soundcard on its motherboards, which offers 24-bit sound. Information on numeric and beep codes is available from manufacturers of BIOSes and motherboards.