🚀 go-pugleaf

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? 

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)

Has anyone got one of these CPUs lying about without a heat sink on top 
which gives some idea of the pin one location?

-- 
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