some Boards can be switched to de-turbo mode via BIOS or hotkey.

I have a TS54P AIO - It has a turbo button, but it doesn't seem to correlate with the switch position - IE - Before/during POST, pressing the turbo button would cause the LED to turn off (with a curious delay) but as soon as POST is completed and the computer boots, the LED turns back on (regardless of switch position) and it seems that the turbo button doesn't do anything. I've checked in BIOS and I couldn't find anything about its functionality.

@iKarith:

You could try that jumper if you manage to get the board to POST (at your own risk, of course). There are quite a few boards with the Turbo header, but not all of them are working. You could also try key combinations such as:
[CTRL]+[ALT]+[+ OR -]
This also maybe dependent on EMM386 on some boards.

The other thing I suppose I could do which might make more sense than trying to make the turbo function of a SS7 board be useful for something might be to swap out the SPDT turbo switch for a DPDT switch. DPDT could be connected to the FSB jumpers to select 66MHz or 100MHz. I'd probably want a pretty stiff switch on that though because it's not something I expect you're meant to toggle on a running system. 😉 Might even be able to hook up the LEDs.

j^aws wrote:

You could also try key combinations such as:
[CTRL]+[ALT]+[+ OR -]

I seem to recall that some Dell Optiplex machines used CTRL-ALT-/ (on the numpad).

^^ I don't have one to try, but it is a common method without a Turbo header across various boards. Although, EMM386 is usually involved.

Probably not going to attempt anything with hardware--I am having too much trouble just getting something that will POST and boot. 🙁 This is rapidly becoming a very expensive project.

Why would you need a double pole switch vs a single pole? You want to isolate two circuits?