I put in a new PSU and fried three HDD's because I didn't use the new cables. I found a replacement for two boards and swapped out the ROM chips. The first one worked fine, the second one didn't. The second one's pcb looks like it has two ROM chips. I only replaced the one by the connectors because that's what I saw online. When I connect it externally with my adapter, it just beeps. Internal installation hangs up in bios. Can't see drive and drive recovery program can't see it either. The drive spins up, unlike before. Drive specs: Seagate ST2000DL001, Firmware: CC96, 100617465 Rev A. Do replace the second ROM chip, or send it in for service?