Trouble adding 2nd hard drive to hp dv9...

Summary after reading several threads on that and fixing this problem on my DV9010 + ST9500325AS:

The problem is known - modern drives featuring SATA II interface
(3 Gb/s) wont allow DV9000 to boot if the first drive is older SATA 1 (1.5 Gb/s). Though the machine does boot if the new drive is installed in the first bay.
The solution is to force the new drive to run only in 1.5 Gb/s mode
that is typically done with a jumper on the back side of the drive.
For Seagate Mementus drives the jumper location is shown here
http://www.seagate.com/images/support/en/us/cuda_sata_block.gif

I have the same problem, i took out my old one and put the new one on the drive 1 bay and i have it working, as soon as i put 2 drive, it freezes at put up... Took my original drive put it in another DV9000, did the same... any help?

Hey, retired Rich! This is retired Ron!
Have a question. Is the new drive set up as slave or master?
Ron-

Has the drive been formatted? Windows won't see an unformatted drive, check the connections and make sure all is well there.

I have an HP Pavilion DV9000 with two 120 GB hard drives factory installed.  I wanted to upgrade the secondary drive to a Samsung HM500LI 500 GB hard drive.  I installed the drive and the system eventually came up after 5 mins of some kind of internal existential struggle...  ;^)
After a few internet searches I learned that my new drive was SATA II and was somehow not being recognized by the system at all.  Samsungs website references the possibility of jumpering the drive to halve the throughput from 300 MB/sec to 150 MB/sec, but does not actually show how the jumpers are supposed to be placed.  Ultimately my solution was to jumper the device by trial and error, with this drive the jumper was correctly placed when it was connecting the outer-edge-most two of the 4 jumper pins.  Once the jumper was installed, the disk came up and was immediately recognized by the system.

I have a dv9819wm that had the same issue in which I was runningidentical drives in both bays (to avoid any compatibility issues) - 2250Gb Seagate SATA II's. Here's a copy of a post I just placedelsewhere that will help you to resolve your issue PERMANENTLY, read on:

Something that I finally (After months of working on the problem of mysecondary drive not being seen, or worse, being seen for a short periodof time and then *POOF* disappearing from everywhere, BIOS Windows,everything! How FRUSTRATING!!!! And HPtech support sucks!! Sending it into them resolved nothing, they simplysaid it works and returned it to me. I work on computers for a livingand figured they were smoking something, to my dismay, I was right.

I finally found the cause in a whitepaper one day while researchingthis problem. The problem was that the second drive bay cannot utilizea drive running at 3 G/sec., it HAS TO BE clippedto 1.5 G/Sec. You can check with you drive manufacturer or simply lookat the top of the drive for a jumper setting, but you WILL need a smalljumper designed for laptop drives, others will not work safely. Once Iclipped the drive to the slower speed, it has been running like a champever since (at least the last three months or so). THANKS FOR NO HELPHP!!!!!! Why they would design a laptop that could use two drives andthen not give both interfaces the same connection speed is beyond me.

P.S.- The drives don't need to be the same size, but bigger is ALWAYS better in this case.

i have a dv1010us and just put a fujitsu 250 gig in secondary. takes for ever to boot and dosnt see it anywhere. does anyone know where to put the jumper on a fujitsu?