Intel's D810EMO Motherboard FAQ says that IDE devices should support the ATA-4 specification for autodetection by the BIOS during POST. "The 40-pin, 80-conductor cable that is provided with the boxed Intel Desktop Board D810EMO is fully backward compatible with all IDE transfer protocols. It will also support Ultra ATA/66 if used with one or two Ultra ATA/66 drives attached. If a drive using a previous IDE transfer protocol is attached to the provided cable, the maximum transfer protocol available to either drive on the cable will be UDMA33."
I'm going to use a 40 GB drive for Win98, so we'll see . . .
Another wrinkle. Scaner on the AOL forum pointed out that the IDE controller chip might be either an 82801AA or 82801AB, which the Intel datasheet says are pin-compatible. (He has one of each in his machines.) The AA will support Ultra ATA/66, but the AB will only support Ultra ATA/33. Unfortunatly, Manuel has an AB.
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