26 Mar
2012
26 Mar
'12
9:45 a.m.
Holm Tiffe wrote:
Hi,
at the Weekend I've got an Vaxstation 4000/90 with 64MB RAM and a
2,1GB Disc from a friend.
Powered it up today and found a Problem.
The Machine doesn't start properly if it is switched on, the LEDs are all
stuck on (0xff). If I switch it off then and on again in a short time, it
starts up properly, is doing the diagnostics and tries to boot an
(defective?) NetBSD 1.1 that is loading the kernel but is getting then in a
?54 RETRY loop.
Pressing the HALT Switch brings up the chevron... havn't tried to install
something jet...
Is that Error with the Reset/Startup known to someone here? I think it
could be an dead capacitor in the PSU...
Kind Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583
www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741
Ok, answering myself: Yes this error is already known, found a thread in
comp.sys.dec. The cause ist an empty lithium cell in the DS1287A RTC.
Used a proxxon grindng tool and grinded the IC housing of, replaced the
empty cell (1,07V) with an soldered on CR2016. Works now.
The RTC was unable to remember the "set bootdev dka0" over a powercycle.
Next question: Does anyone have the wiring of the DEC 29-24795 serial loopback
connector to be used to set the DIAGENV to higher that 1 on an VS4000?
Regiards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583
www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741