Hi,
I have a store bought (2.5 yrs old) HP Pavillion a1520n. 2GB RAM (upgraded), 250GB hard drive, Windows XP Media center edition, AMD 64x2 Dual Core Processor 3800+. Just yesterday I installed an additional hard drive:
Seagate barracuda ST3250410AS. Plugged into SATA - 2nd opening on the motherboard (out of 4 total openings - first opening had original HD plugged in which I did not change and I plugged the new HD into the next sequential spot), went into Computer Management and formatted the drive so that it shows up in "My Computer", set the Boot order in BIOS to boot the new drive first before the old drive so that I could install windows from the "System Restore" discs that HP tells you to make (because the recovery console is built into a partition on the orig. hard drive), put the recovery discs in the CD-ROM and restarted the computer - asked me if I wanted to complete system recovery, at which point I THOUGHT I was installing all the new OS files onto the NEW drive but only ended up re-formatting my entire "old" hard drive upon which my entire life was stored

but I digress.... Now, I have a newly formatted "old" hard drive and the new drive is installed and being read, but I cannot boot from it. I should say -
my goal was to make the new drive into the primary and use the old drive as a slave/backup (it was getting slow and glitching out on me). I don't know if I need to change the SATA plugs, or unplug the original drive so that I can install XP onto the new drive? Or if I should scrap the whole thing and just use the new disc as the backup? As I said before, I don't have a stand alone XP disc, just the "system restore" discs that I made from the HP program (yes I know, this sucks and I will never buy one again lol). If anyone can shed any light on this I would greatly appreciate it as I've spent enough time trying to figure it out myself and erasing all my files in the mean time.
One more thing - new drive did not come with any jumper.