Another option as well for the future reader finding this thread well after the voltage regulator is gone: if you're only using Compact Flash cards, you may only need +5V. (I don't know if X/ProFile uses +12V, but IDEfile does not.)
In which case you may be able to make your own device using a single DC->DC switching converter all-in-one component available on places like Digi-Key etc. These will not require the cooling fan and heat sinks found on this board. YMMV (has worked for me and my IDEfile+Compact Flash setup for a long time), and you may not want a ProFile that mysteriously makes no noise at al!