WD20EARS in Q-see DVR

I installed the subject drive in a Security DVR and overnight the DVR would loose communication with the DVR. I reconfigured and over night the same problem suspect its something with the drive. I see one suggestion to jumper pins 7 & 8.  Any experiences out their.

Thanks

Not sure what effect the drive will have on the DVR performance

jumper pins 7 & 8 will have the drive run at 1.5 Gb/s

more info

http://wdc.custhelp.com/app/answers/detail/search/1/a_id/1679#jumper