From owner-freebsd-alpha@FreeBSD.ORG  Fri Feb  1 17:54:20 2008
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To: Nathan Whitehorn <nathanw@uchicago.edu>
In-reply-to: Your message of "Fri, 01 Feb 2008 09:08:22 CST."
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Date: Fri, 01 Feb 2008 09:23:57 +0000
From: Dieter <freebsd@sopwith.solgatos.com>
Cc: freebsd-alpha@freebsd.org
Subject: Re: No X server on Alpha? 
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> Unfortunately, my Alpha has some hardware issue and will no longer boot. 
> It started while trying to run Firefox (I suspect X doesn't respect the 
> DMA bug in the pass 1 Pyxis). This crashed the machine a couple times, 
> and I kept retrying it, and now it won't do anything. Without X, it was 
> rock-solid, and Firefox worked fine over X forwarding. Other X programs 
> that didn't use large pixmaps worked fine too. Once I get the machine 
> back up, I'll send in a patch.
> 
> Incidentally, if anyone has any experience debugging Alphas, I'd 
> appreciate help. It's an AlphaPC 164SX and is stopping at POST code 
> 0x14, which the manual informs me indicates "Memory errors cleared; 
> start reading system ROM".

Have you made any hardware changes recently?  added/removed card, ...

You might need to reinstall the SRM firmware, if it will get far enough
to do that.