Thinkpads Forum

I'm doing a search for a new larger faster hard drive for my R51, in a previous post I was informed I need a PATA drive. In my serach for hard drives all the options for the search are below but not the PATA. I am confussed, which drive do I need?
Thanks

DMA/ATA-100 (Ultra)
DMA/ATA-133 (Ultra)
DMA/ATA-66 (Ultra)
EIDE
IDE (103) SCSI
Serial ATA
Serial ATA II

You can use any PATA or EIDE drive. This would be an example. I think WD made a 320GB drive, which is the largest PATA drive.

From the list you've given, only the last three will not work. "ATA" drives, especially ones with -66, -100 and -133 suffixes, are understood to automatically be Parallel ATA (PATA) drives. Which is also sometimes referred to as EIDE. Those are NOT compatible with SCSI or Serial ATA (SATA) interfaces.

ref: http://www.computerhope.com/help/ide.htm