On Thu, 6 Sep 2001, Stephen Frost wrote:
> Welp, I've got a DECstation 5000/200 but no clue what (if any)
> NVRAM module it has. How can I find out? :) I havn't booted
> the thing up in quite a while so I'm not even sure it's exactly
> functional, but I've been looking for an excuse to play with it.
An NVRAM module is placed in a memory slot, usually the 15th, as that's
what DEC supports. It differs from RAM modules visibly -- it has two
green LEDs and a lithium battery (mine is orange, which makes it easily
recognizable; I'm not sure if the color is a rule).
In a configuration dump it's marked explicitly as a "Presto-NVR" module
if placed in the 15th slot. This is an example of a `cnfg 3' output from
my /240 system -- you would need to type `cnfg 7' for your /200:
>>cnfg 3
3: KN03-AA DEC V5.1b TCF0 (352 MB, 1 MB NVRAM)
(enet: 08-00-2b-1e-3b-78)
(SCSI = 7)
---------------------------------------------------
DEV PID VID REV SCSI DEV
===== ================== ========== ====== ========
dcache( 64 KB), icache( 64 KB)
mem( 0): a0000000:a1ffffff ( 32 MB)
mem( 1): a2000000:a3ffffff ( 32 MB)
mem( 2): a4000000:a5ffffff ( 32 MB)
mem( 3): a6000000:a67fffff ( 8 MB)
mem( 4): a8000000:a87fffff ( 8 MB)
mem( 5): aa000000:aa7fffff ( 8 MB)
mem( 6): ac000000:ac7fffff ( 8 MB)
mem( 7): ae000000:afffffff ( 32 MB)
mem( 8): b0000000:b1ffffff ( 32 MB)
mem( 9): b2000000:b3ffffff ( 32 MB)
mem(10): b4000000:b5ffffff ( 32 MB)
mem(11): b6000000:b7ffffff ( 32 MB)
mem(12): b8000000:b9ffffff ( 32 MB)
mem(13): ba000000:bbffffff ( 32 MB)
mem(14): bc000000:bc0fffff ( 1 MB) Presto-NVR
mem(14): valid, batt OK, unarmed
>>
Note that there exists a TURBOchannel NVRAM module, namely the PMTNV-AA.
This driver doesn't intend to support it.
Maciej
--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: macro@ds2.pg.gda.pl, PGP key available +
