![So I've got a msi b550-a pro, I'm wondering what the little switch near the bottom of the motherboard is. I'm too afraid to flick it. : r/pcmasterrace So I've got a msi b550-a pro, I'm wondering what the little switch near the bottom of the motherboard is. I'm too afraid to flick it. : r/pcmasterrace](https://preview.redd.it/yzhm6hxb5jr51.jpg?auto=webp&s=d7cf50e10d9a9bc272cdc015f0d61e9dc13dcc69)
So I've got a msi b550-a pro, I'm wondering what the little switch near the bottom of the motherboard is. I'm too afraid to flick it. : r/pcmasterrace
![Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/81QbZcKRiDL._AC_UF350,350_QL80_.jpg)
Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics
![Motherboard] MSI PRO B550-A PRO AM4 AMD B550 SATA 6Gb/s ATX AMD Motherboard $124.99 ($139.99 - $15 with promo code EMCGDFE24) : r/buildapcsales Motherboard] MSI PRO B550-A PRO AM4 AMD B550 SATA 6Gb/s ATX AMD Motherboard $124.99 ($139.99 - $15 with promo code EMCGDFE24) : r/buildapcsales](https://external-preview.redd.it/ZaiFAnTpAKQaHWRyuSDbWo5YxnQXg9ZMUAqy_Rr2jxA.jpg?auto=webp&s=c6fd84029bcf74b2394205dce746d85ee2c2e1b7)
Motherboard] MSI PRO B550-A PRO AM4 AMD B550 SATA 6Gb/s ATX AMD Motherboard $124.99 ($139.99 - $15 with promo code EMCGDFE24) : r/buildapcsales
![Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/91ZaZaXf5OL.jpg)