[Pc_Support] Memory DIMMs--PC66/PC100/PC133

[Mike Webb]

I've got a hardware question I hope someone can either help me with or 
point me to an appropriate link.

I'm just beginning to accumulate some DIMMs of the PC66/PC100/PC133 type. 
Naturally, I don't know which is which in some cases. I figure that I can 
probably figure them out by plugging them into a motherboard, but I don't 
want to destroy anything either (I've already had a bad afternoon this 
month where I killed two computers). What I want to know is what happens 
if you plug a DIMM of that type into a motherboard that it's not designed 
for.

Presuming that the DIMM in question is not compatible with other speeds, 

1) What happens if you plug a PC66 DIMM into a PC100 or PC133 motherboard?

2) What happens if you plug a PC100 DIMM into a PC66 motherboard?

3) Same as #2, but the mobo is PC133?

4) What happens if you plug a PC133 DIMM into a PC66 or PC100 mobo?

And while I'm talking about deceased hardware, who has a Pentium II 
motherboard (one that will accept a PII/450 chip) they would be willing 
to donate to a project that will help out someone who can't afford a 
computer? (BTW, if it makes a difference, I'll be wanting to put it into 
a Dell Dimension case.) Feel free to email me offlist on that, just put 
something like "Weeble" or "Motherboard" in the subject line so I don't 
nuke your message as spam (I do all my nuking manually, so you don't have 
to worry about going awry of a spam nuker).

Thanks!


--
My Groklaw nym is Weeble. It came from the "Spiderweeb" and "Weeb" kind of
nicknames a kid named Webb gets. I never even knew of the Hasbro product 
until after I started using "Weeble". Take note, any Hasbro attorneys.