[rescue] Replacement NVRAM/clock for Ultra 1E, success

Meelis Roos mroos at linux.ee
Sat Oct 3 13:31:39 CDT 2015

> Why not just buy the MT48T59Y chips which are easily available?

I bought a bunch from a Chinese supplier in EBay. These were a lot 
cheaper than Mouser has. It also became clear why - their batteries were 
already empty. Probably have stood a long time on the shelf, or are some 
replicas with weaker battery.

> > If anyone is looking for a replacement NVRAM for a sun4u (in my case, a
> > Ulra 1 200E Creator), I can confirm a working replacement is the
> > M48T58Y-70PC1 that I recently bought from mouser (sorry, french site):
> > 
> > <www.mouser.fr/Search/ProductDetail.aspx?R=M48T58Y-70PC1>

Meelis Roos (mroos at linux.ee)

More information about the rescue mailing list