I am wonderting the promise Ultra ATA100 TX2 could support CD-ROM or CDR-W alone without connecting any HDD? When i just connected the CDR-W... it detection during booting is much much slower.... then when i try to burn CD, the whole PC hang.( WinXP) sometime, when there is CD inside..... it will show @@@@@@@ drive detected during its BIOS drive detection instead of showing D0 Liteon CDROM. 2. How the LED connection on the card is connected to the case HDD LED indicator? Is it possilble to connect the MBO HDD LED output parallel with the card's LED output to the casing LED indicator?