![The lovely Pentium MMX 166Mhz system. Unfortunate that the motherboard does not support the turbo button option. The speed LED is programmed to show 166. I'm actually considering installing my 386 motherboard The lovely Pentium MMX 166Mhz system. Unfortunate that the motherboard does not support the turbo button option. The speed LED is programmed to show 166. I'm actually considering installing my 386 motherboard](https://i.redd.it/1vjb2orqohr51.jpg)
The lovely Pentium MMX 166Mhz system. Unfortunate that the motherboard does not support the turbo button option. The speed LED is programmed to show 166. I'm actually considering installing my 386 motherboard
![Mnpctech Custom Gaming PC Builds, Case Mods & News – Tagged "retro computer ATX tower with turbo button" Mnpctech Custom Gaming PC Builds, Case Mods & News – Tagged "retro computer ATX tower with turbo button"](https://cdn.shopify.com/s/files/1/0255/0992/0834/articles/0_2_1024x1024.jpg?v=1593608103)
Mnpctech Custom Gaming PC Builds, Case Mods & News – Tagged "retro computer ATX tower with turbo button"
![Mr. Milligan on Twitter: "Back when computers had a TURBO button. I never did find out what that did... https://t.co/T2eVmauhQE" / Twitter Mr. Milligan on Twitter: "Back when computers had a TURBO button. I never did find out what that did... https://t.co/T2eVmauhQE" / Twitter](https://pbs.twimg.com/media/DK1zCA5VYAAAw6w.jpg)
Mr. Milligan on Twitter: "Back when computers had a TURBO button. I never did find out what that did... https://t.co/T2eVmauhQE" / Twitter
![hardware - Purpose of turbo switch on systems unable to slow to 4.77 MHz? - Retrocomputing Stack Exchange hardware - Purpose of turbo switch on systems unable to slow to 4.77 MHz? - Retrocomputing Stack Exchange](https://i.stack.imgur.com/V37LY.jpg)
hardware - Purpose of turbo switch on systems unable to slow to 4.77 MHz? - Retrocomputing Stack Exchange
Janadhi & Company - We recover data from all kind of pc. Even its 30 years old... check out the turbo button 😉 | Facebook
![Lord Arse! 🕹️ on Twitter: "Contrary to popular belief, the “TURBO” button on a PC case wasn't to speed up the computer but to slow it down, so that older software designed Lord Arse! 🕹️ on Twitter: "Contrary to popular belief, the “TURBO” button on a PC case wasn't to speed up the computer but to slow it down, so that older software designed](https://pbs.twimg.com/media/EzmdoDQWQAYAtsF.jpg:large)