| Year | Event |
|---|
| 1981 | The first motherboard, originally called a “planar,” was used in the IBM Personal Computer. |
| 1984 | The AT, or Full AT, motherboard form factor was introduced by IBM in August 1984. |
| 1985 | IBM introduced the Baby AT motherboard form factor in 1985. |
| 1987 | The LPX motherboard form factor was developed by Western Digital in 1987. |
| 1995 | Intel released the first version of the ATX specification for motherboards in July 1995. |
| 1997 | Intel, in a joint effort with DEC and IBM, developed the NLX form factor in March 1997. |
| 1997 | The first motherboards with AGP support are released in August 1997 by Intel and November 1997 by FIC. |
| 1997 | The microATX motherboard and specification was introduced by Intel in December 1997. |
| 1998 | Intel introduced the WTX motherboard form factor in September 1998. |
| 1999 | Intel introduced the FlexATX motherboard form factor in 1999. |
| 2000 | Kontron introduced the ETX motherboard specification in early 2000. |
| 2001 | The UTX motherboard form factor was introduced by TQ-Components in 2001. |
| 2001 | The Mini-ITX form factor was developed and introduced to the market by VIA Technologies in November 2001. |
| 2003 | The PCI Express standard is introduced in 2003 by the PCI-SIG. Motherboards with a PCI Express slot were released later the same year. |
| 2003 | The Nano-ITX form factor for motherboards was introduced in March 2003. |
| 2004 | NVIDIA introduced their SLI technology in 2004, allowing the ability to link two video cards together on a motherboard. |
| 2004 | Intel released the BTX form factor and specification for motherboards in February 2004. The microBTX and PicoBTX form factors were also released the same year. |
| 2004 | The Mobile-ITX form factor for motherboards was introduced in March 2004. |
| 2005 | The PICMG, a group of over 150 companies, introduced the COM Express form factor in 2005. |
| 2005 | The XTX motherboard form factor and specification was released in 2005. |
| 2006 | Using two video cards with a microATX motherboard became possible in 2006 for computer gamers. |
| 2006 | Supermicro released the SWTX motherboard form factor in 2006. |
| 2007 | The Pico-ITX form factor for motherboards was introduced in April 2007. |
| 2007 | AMD developed the DTX form factor in January 2007. AMD also developed and released the Mini-DTX form factor in 2007. |
| 2010 | EVGA released the HPTX motherboard form factor in 2010. |
