🚀 go-pugleaf

I'm trying to confirm the characteristics of a SIMM which I've
recently been given, and would like some help please.

The SIMM's a 72-pin device and I believe it's 16M; it came out
of a working 486/66 PC which contained two such devices and
reported 32M, but it's unlike any other SIMM I've encountered
before.  Its description is as follows:

The main label identifies it as a "Toshiba THM364020SG-70" and
it has a smaller label which indicates what I assume is the date
and batch number "9319AAA".

The SIMM has eight chips, Tosh type number TC5117400J-70, on one
side and four chips, Tosh type number TC514100ASJ-70, on the
other side.  I deduce that the four chips on the reverse side
are for parity, but I've never seen it implemented in such a
fashion before.  My assumption is therefore that it's a 36-bit
device.  I would also assume that it's a 70nsec device - anyone
contradict these?

From the date code on the SIMM and the age of the AST Bravo PC
from which it was removed (legally, I hasten to add!) I would
guess that it's not an EDO device - can anyone confirm this?

It's my intention shortly to buy a new 5x86-based motherboard to
upgrade from my current 386DX40 which can't take 72-pin SIMMs,
so I'd like to be confident that the SIMM will work in a
standard m/board.  Can anyone foresee any problems?

PS - what's the fastest m/board in which 70nsec memory will work
correctly?

TIA,
-- 
Martin Davies
Devil's Dictionary Definition of the week: "Abscond - to 'move
in a mysterious way', commonly with the property of another."