Advanced Format Drive. To achieve full performance:*Windows XP, multi partition and cloning software users - use WD Align software available on www.wd.com/advformat.*Windows XP, single partition - Set jumpers 7-8 prior to installation or use WD Align software.*All other OS configurations - Drive is ready for use as is
Well I tried everything so the drives are going back to Scan tomorrow. I dod on the off chance brought another from Scan, It arrived on Friday.And would you believe it it worked, so I can only suggest that the other two was fault.On the other note I now have update my Bios to F7.