PCI Compatibility

[smitra]

I've got a generic question. Any of the new higher end machines from Dell,HP,IBM,etc have the PCI-X slots that run at 64bit/100MHz. I need to know for sure if I can plug in a PCI (2.2) card that runs at 64bit/66MHz without any functional problems. My understanding is that the PCI-X standard is backward compatible and that the bus will run at the speed of the slowest component on it, but I'd really like to know for sure.
Thanks.

 

[sunl]

My understanding is that a card is backward compatible, but not the slot.
The MB clock is static, it cannot be changed automatically.
It's safe for a card working at lowwer frequecy, so card is backward compatible.