The problem here is that the Turbo Button functionality is not directly related to changing MHz. Depending on implementation it adds Waitstates, disabled chipset buffers, disables caches and so on.

Really? I saw cases that had the front "mhz" led go from 33 to 16 with the touch of the turbo button. I thought It meant equivalent cpu speed to another slower cpu.

computergeek92 wrote:

Really? I saw cases that had the front "mhz" led go from 33 to 16 with the touch of the turbo button. I thought It meant equivalent cpu speed to another slower cpu.

Yea that's not how it works. The LCD display if cosmetics only. It has two states and you can configure what it displays with jumpers at the back.

Some change it display HI and LO for example.

Yeh most are controlled by jumpers on the back of a display
I re used a 66Mhz case for a 200Mhz Pentium, but never to change the display. Also pressing the turbo button still changed the display even though it wasn't connected to the motherboard at all.

Also there was no standard on how turbo should slow down a system. Different companies had different ideas on how to do this.
So 1 motherboard may slow a 33 down to 16, another may slow it down to 12Mhz