Hi,
John Honniball <coredump(a)gifford.co.uk> said:
 Tony Duell wrote:
  > > I've had semicondcutor RAM fail,
albeit not DRAM in a PC. 2114s are
 > > particularly bad for this. 
 ...
  Hmm.. I've had so many 2114s fail, in
equipment from different
 manufacturers (examples : a Commodore 8050 disk drive, a TRS80 Model 3
 (video RAM) and an HP82163 video interface) that I really suspect the
 chips... 
 I had a 2114 go bad in my UK101.  I swapped it into the video RAM,
 which made the stuck "1" bit visible as a dud character in the
 middle of the screen.  Scrolling made it "smear" all the way up
 to the top.
 More recently, I've managed to obtain a supply of 2114s to
 (hopefully) keep the UK101 going. 
For the benefit of any UK readers, Maplin still list 2114s, part number
QW12N, price 4.99 - how long for is another matter, however...
--
Cheers,
Stan Barr  stanb(a)dial.pipex.com
The future was never like this!