I did the same, scraping away with a razor blade, and used alkaline
batteries in it.  That was about 4 months ago, and it's still going
fine. 

Scott Stevens wrote:
> 
> There is a lot of good information about NVRAM replacement in the article at:
> 
> http://www.squirrel.com/squirrel/sun-nvram-hostid.faq.html
> 
> I was able to use the information on that page to figure out how to use a
> dremel tool to grind into a dead NVRAM that was in a Sparc IPC I bought on
> eBay, solder in leads to an external 3  volt lithium battery, reprogram all
> the info and get it initialized to work without any error messages.
> 
> Scott Stevens
> stevenss@tcfreenet.org

-- 

Pat Wendorf