Date: Sat, 26 Jun 1999 11:51:59 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: Peter Wemm <peter@netplex.com.au> Cc: Mike Smith <mike@smith.net.au>, freebsd-alpha@freebsd.org, msmith@freebsd.org Subject: Re: AARGH!! "dead" Alpha 164SX (Was: Re: OK, any pointers on how to use SRM? :-)) Message-ID: <Pine.BSF.4.05.9906261150020.80685-100000@herring.nlsystems.com> In-Reply-To: <19990626094314.68C0775@overcee.netplex.com.au>
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On Sat, 26 Jun 1999, Peter Wemm wrote: > Mike Smith wrote: > > > > > > Well, the problem has been found.. Mike Smith gave me a new graphoil pad > > > to use since the heatsink was taken off for transit.. But the new one was > > > bigger than required and the thought never occurred that it might have been > > > rather conductive and that it was going to short out those 12 capacitors on > > > the top of the CPU surface, which, BTW, were between 3.3V and ground. > > > > "Aargh shit". I never even thought to check that. > > Likewise, it took me 8 hours to realize the first boot for 30 seconds that > I got the first time was with the heatsink off.. Once I realized that, then > I got one of those "Hmm, I wonder if...." kind of feelings and sure enough.. > > > > It all makes sense now. "Aargh Shit!" certainly seems appropriate. > > > Anyway, after some careful trimming of the pad, I've now got it running to > > > the point of SRM startup... (And there was I thinking I'd found a hairline > > > crack in one of the mounts for a component from transit damage in my > > > luggage..) > > > > Whee, happiness! > > It seems to run reliably at 533MHz as well. If the kernel has softupdates > compiled in, all sorts of things fail during boot including sysctl and > sometimes mount_nfs. If softupdates are active, not just in the kernel, > then 'make world' wedges 5 seconds into the bootstrap build of make. This > is the same at both 400MHz and 533MHz. Compiling softupdates out has > resulted in an (apparently) happy system at 533. > > The next good question is.. what's up with softupdates? :-] Hmm.. say, > that NCR controller you gave me, is that the one that was screwing up on > freefall by any chance? Softupdates normally works very well on my alphas. I think that there is some kind of hardware problem with that machine. I'm just building a fresh current kernel with softupdates so we will see. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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