After installing new motherboard MSIK7T Turbo2
Samsung HD20 connected to IDE 1 Master ATA 66
Aopen CDRW to IDE2 master PIO 4
DVD cdrom to IDE2 slave ATA 33
Aopen CRW1232PRO unable burn faster than 4X
UDMA and PIO enabled in BIOS setting auto
What could be the conflict.
Suggestions very much appreciated