Date   : Wed, 16 Sep 2009 12:39:14 +0200
From   : rick@... (Rick Murray)
Subject: No longer Mouldy Beebs

Dominic Beesley wrote:

> is overheating ? the video processor was hot and its back to normal this 
> morning, though it quickly got hot again. The symptoms were random 
> characters being sent to keyboard buffer and memory corruption worsening 
> to reboots going to a mode 7 screen full of character &FFs. Is this a 
> common problem?

There were two video chips. Some, and I've only seen these on two issue 
3 boards [*], needed a heatsink. The other, I've seen on issue 7 boards 
[*], didn't. It may be you have the heatsink version. Do you have a 
heatsink handy? Of if one of your other Beebs has a different video 
chip, try that instead.


* - this isn't to say you'd never find the hot one in an iss. 7, I just 
think it got redesigned somewhere along the line and the iss. 7 being 
later, one would hope, would also use the later component!



Best wishes,

Rick.

-- 
Rick Murray, eeePC901 & ADSL WiFI'd into it, all ETLAs!
BBC B: DNFS, 2 x 5.25" floppies, EPROM prog, Acorn TTX
E01S FileStore, A3000/A5000/RiscPC/various PCs/blahblah...