🚀 go-pugleaf

In article <874778295snz@longley.demon.co.uk>
           David@longley.demon.co.uk "David Longley" writes:

> I have a Cyrix Upgrade Chip with heat sink attached to it. I'm 
> considering replacing the Intell 386-20 in a COMPAQ DESKPRO 386-20
> (circa 1988). 
> 
> Unfortnately, I can't see any orientation edge on the CYRIX Chip.
> There's the CYRIX labelling on the underside of the CPU, but....
> Is there sdome convention re the orientation of the labelling 
> on the underside of CPUs regardless of manufacturer? How can
> one tell which way to insert the chip? 
> 
> Will it work with teh above machine?


Update, there *is* a white paint mark on the heatsink and I have
indicated its relative position by the 1 on the CYRIX chip relative
to the text on the underside.

Similarly, on the Intel chip, I have marked where the notch is 
relative to the text on the underside.


Intel Underside      Cyrix Underside 

  ------------1       ------------ 
 � 37434420AA �      �1992CyrixUSA�
 � MALAY   51 �      �      JAPAN �
 � B          �      �            �
 �            �      �            �
  ------------        ----------- 1
                                 suspected
                               orientation pin
                         (white paint mark on heat sink)
> -- 
> David Longley
> 
> Longley Consulting                                                  London, UK
> Behaviour Assessment & Profiling Technology,
> Research, Data Analysis and Training Services,
> Small IT Systems                                http://www.longley.demon.co.uk
> 
> 

-- 
David Longley (check end reply line #)

Longley Consulting                                                  London, UK
Behaviour Assessment & Profiling Technology,
Research, Data Analysis and Training Services,
Small IT Systems                                http://www.longley.demon.co.uk