NVRAM by Maeslin
The NVRAM chip contains a battery cell that after time ceases to function. In most cases this will mean that your Falcon will no longer keep the correct time in day-to-day use. Since the NVRAM chip also stores other settings as well this can also cause problems with the Falcon failing to boot in some instances.
This method involves removing the original chip and replacing it with a new circuit board and replaceable battery.
New chip compared to original NVRAM chip