I've never had to jumper an SATA II device to work on older controllers. For about 6 months I was using a Raptor 150gb(SATA1) with a 500gb AAKS(SATA2), doing so made the controller(SATA 2 capable) work at only SATA 1 speeds, and both drives still worked. So, it shouldn't be an issue.

Some controllers (notably VIA ones) are incapable of operating with SATA/300 drives unless they're jumpered. I find it interesting your controller operated both drives at the slower speed. It should not.

Hmmmm. Indeed, my MB is an ASUS K8VSEDX, which uses VIA for Southbridge. I had to jumper the WD "Green" drive down to 150MB (SATA I), which prompted my question.

I'm still lusting after the VelociRaptor, but am still seeking empirical data that it can be jumpered to SATA I. I guess I'll try to contact WD directly, unless someone here at SPCR (where I truly trust writers' experiences) has the information.

[[edited: I've sent a request through WD official channels. I'll report the result. Interestingly, nowhere on their site could I find any information about the Velociraptor single line of (possibly) jumper pins.]]

I'd try and contact WD. I can't find any information online about the four pin block on the VR.

scythehttp://www.dustinhome.se/pd_50101 ... sjakt_5297

Will this one work you think ?
Or will it be too to hot for the drive you think ?