Intel Tualatin Processors and Motherboard Support?
IntelIntrique asks: "I became intrigued when I learned about the new P3 Tualatin processors with a 512K cache, but was disappointed to learn that they require specific new motherboards to support the chips (Intel claims voltage changes). However, HotHardware features a review where they use one of these new processors in an Intel D815EEA2 motherboard, one that Intel shows as not supporting the new processor. What gives?"
"I have an D815EEA2, and I'd love to grab one of these new processors, but not if it means buying a new motherboard. Is Intel trying to prevent existing motherboard owners from cashing in on this new super chip? Are there any other slashdotters who have tried these new P3's in older motherboards with success? I'm mainly concerned with people using the processors in Intel boards, since it seems as though Intel would be in a unique position to know what types of new chips might be around the corner, and build unofficial support into early board revs."
The part might work in the non-specified board, but if you take another of the same part and board, it might not.
It's not "supported" because Intel didn't spend on the testing to ensure that it's supposed to work at levels that don't cost Intel a lot of returns.
They changed the voltages on the part to get some other benefit (lower power, more speed, better yield, whatever), and couldn't guarantee the old boards would work, so they designed a new board.
It's not that big a deal (unless you think it is) because people who pull their CPU and replace it are relatively few and far between.
--Blair