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Can I select 33 MHz operation on the Primary, even with the Primary clock being 66 MHz?

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Can I select 33 MHz operation on the Primary, even with the Primary clock being 66 MHz?

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A 66 MHz bus normally drops to 33 MHz when the M66EN signal is driven low. So, you could bring down the primary bus to 33 MHz by tying or pulling low the P_M66EN signal, if that is your wish. More importantly, some other card might do this to you if it is designed for 33 MHz but plugged into a normally 66 MHz bus.

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