Argh, what an irritating day.
I was trying to set up raid 1 with two Western Digital Caviar SE16 500GB 5000AAKS blah blah, but the bios kept freezing when it was supposed to be detecting the drives.
After much faffing about, I noticed one had a jumper and the other didn't (different manufacturing dates). So I found a jumper, and stuck it on the one without a jumper. They then were detected on my new mobo, but when I took them upstairs to the old mobo they still didn't work. So I took the jumpers off both, and finally got the old mobo to post.
Once it booted I found the specs: they can ship with or without the jumper. It seems to say that if pins 1 & 2 are shorted it has no effect, and then it seems to say that if pins are shorted it enables Spread Spectrum Clocking.
So, if you have one of these and it doesn't work, take off the jumper. SSC is supposed to reduce electromagnetic interference, so it's not a big deal switching it off.
I was trying to set up raid 1 with two Western Digital Caviar SE16 500GB 5000AAKS blah blah, but the bios kept freezing when it was supposed to be detecting the drives.
After much faffing about, I noticed one had a jumper and the other didn't (different manufacturing dates). So I found a jumper, and stuck it on the one without a jumper. They then were detected on my new mobo, but when I took them upstairs to the old mobo they still didn't work. So I took the jumpers off both, and finally got the old mobo to post.
Once it booted I found the specs: they can ship with or without the jumper. It seems to say that if pins 1 & 2 are shorted it has no effect, and then it seems to say that if pins are shorted it enables Spread Spectrum Clocking.
So, if you have one of these and it doesn't work, take off the jumper. SSC is supposed to reduce electromagnetic interference, so it's not a big deal switching it off.