[KLUG Members] Hearty Thanks ++

[Sirch Namdig]

I first want to extend a hearty thank you to those of you who have
provided assistence to me over the past few months.  (You know who
you are.)  Some of you may recall that I brought my mobo to the last
meeting in April in an attempt to identify it.  As a direct result of
that, it is all back together and "screaming" along at 200 MHz.  

The top 3 hardware tips I have had so far (Paraphrased):

#3 "Try the MMX chip anyway.  Even if you don't get more speed, it's
got a bigger cache."
- It worked.  And, the mobo recognized the MMX.  And, I got another
34MHz out of it.  (More in a bit)

#2 "Look, dummy, it says right here on the board how to jumper it for
the extra speed."
- Wow.  I thought I looked for that, but I just didn't understand
what I was seeing.  Saved me a lot of hunting over the internet.

#1 "The hardware is fine.  There's a problem with the interface
between the screwdriver and the floor."  (Think about it.)
- Yeah, this gave me the patience to rip the box apart a second time.
 Found I had twisted a cord.  Everything worked great once I fixed
that.

Well, the "bylaws" for this list say I can't just say "thank you". 
So, in order to abide by that, and to provide some relevance, here's
the story on the mobo:

I was hoping to install a 233-MMX chip into a board that had a chip
performing at 166+.  I brought the board to the meeting to identify
it so I could hunt down a manual.  Someone pointed out that the board
said right on it how to jumper it.  Took it home and played with it. 
After rebuilding it twice, I finally got back to initial state. 
Then, started messing with the jumpers on the old chip (IBM PR200). 
I couldn't get any more than 166+ out of it.  (I don't know what the
plus means.)  So, I pulled the chip and put in the 233.  She booted
right up at 133-MMX.  I swapped the jumpers to max and got 200-MMX
out of it.  Wondering what was going on, I rubbed the goo off the old
chip and surprize, it said it was a 150MHz chip.  So, I guess the 200
didn't mean 200 MHz.  And, apparently it had been running overclocked
all that time.

So, here's something I'm trying to figure out.  If the board buss is
constant, how is it that 2.0x gives me 166+ MHz on the old chip and
3.0x gives me 200 MHz on the new chip?  What am I missing? 
(Incidentally, 2.5x and 3.0x on the old chip caused bootup failures. 
2.0x on the new chip gives me 133 MHz)

Chris.


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