I'm using wildcard-88n. How is 7.15mhz turbo mode possible?

[antwork]

I'm using wildcard-88n. How is 7.15mhz turbo mode possible?
The PDF says that wildcard-88n is capable of 4.77 and 7.15.
How can I get it to work in 7.15Mhz turbo mode?
Does anyone have any advice?

 

[krebizfan]

The Wildcard documentation shows that Control Register 2 bit 6 needs to be set to 1, See page 10. How to accomplish that is something I don't see. It should be set by either the BIOS or a pin that goes to an external switch. Hopefully, someone else knows.

The obvious question is: Does the BIOS in use support turbo mode?
'

 

[antwork]

I have no electronic knowledge whatsoever, but I enjoy soldering along projects created by various pioneers. Building retro PCs brings back happy childhood memories. With that being said, here's wildcard 88 datasheet. If you don't mind, any small help would be appreciated. Thank you