On Thu, 20 Nov 2003, Reiner Buehl wrote:

> Is there a way to "test" the battery in this dallas chip to ensure that this
> is the cause before replacing the chip?

 Unfortunately there does not seem to be a specific test in the console --
perhaps it reports an error is the chip signals a battery failure, but I
don't know.  However, you may query the chip directly -- the battery state
is reflected in bit 7 of register D of the chip.  For the Maxine you can
get to the register by typing:

>> e -bx 0xbc200034

at the console.  If the reported value is "0x80", then the battery is OK;
if it's "0x00", then the battery failed.

 The 3min uses the same address, but for other DECstation models it has to
be changed appropriately.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +