[Old X2 Duo Gs Power Cycles]

I have an xbox v1.6 that i had modded with the white X2 duo GS probably 12 years ago that worked flawlessly.  Well i put it in storage and took it out maybe a year ago and the HDD died and i could not get it to boot from either of the banks on the chip, both just make it turn on and off.  The xbox is softmodded now with a new HDD but i really want to get this chip working again.  does anyone have any ideas to get a bios back on it or why it might have just died from not being used?  i also have two other xbox systems, one of them v1.4 that i just did the tsop flash for the first time using this page and that worked great and i have another that is either 1.2-1.5 that is softmodded but not yet tsop flashed.  can i use them to flash it?   Any help would be greatly appreciated.