How to replace a Sun NVRAM Battery chip (No Dremeling)

For just $20 you can get a new clock battery chip for your Sun that’ll fix slow boot times, lack of networking, and “idprom contents invalid“ and even better you don’t need to dremel your old one. The programming guide: The chip the SS20/sun4m uses: Sun3x/Sun4c: Sadly the M48T59Y from the Ultras is out of production but I’ve heard the 58y works: Have fun avoiding paying the eBay markup.