Final Edit: Solution to this mess: A program called siside that enables UDMA in XP for the SIS chipsets. Yay!!
System specs are as follows:
AMD XP 1500
Chaintech 7SID0 SIS 735 chipset with the Latest BIOS Matx mobo
512 MB DDR
Gainward GF3
Maxtor 120gb ATA 133
56x CD-Rom
10/100 nic
Windows XP Professional
When I first set this system up, I had both the hard drive and cd-rom drive on the same cable. When I checked in system/device manager, both drive were listed as PIO mode for Transfer mode. The transfer mode was set to DMA if Available. I thought maybe it was defaulting to the CD-rom Speed for both so I put the CD-rom on the Secondary channel and tried again. I am still getting the same thing. Even though the hard drive is all alone on it's channel, it is still only allowing the drive to run in PIO mode.
I have updated all of the drivers for the mother board and have installed all of the patches for XP. Does anyone have any suggestions as to what I might try?
EDIT: Just checked my CD-rom. It is supposed to do ATA 33 and it too is stuck in PIO mode
EDIT 2: In post it shows my HD as being ATA 100
EDIT 3: Had the same results in Win2k Server
