[rescue] memory trade, anyone? (and misc. x86 rambling)

[Michael A. Turner]

	Ya I have seen this. It is the High Density that is killing you. The
clue is that it worked in the KT7 board, their are a very limited number of
boards that will support high density ram. The KT7 series boards are one of
them, I know I have one.  VIA KT-133, SIS 630,AMD 750/760, VIA Apollo 133A
Pro,VIA 694, VIA KT-133/a, VIA KX-133,AMD 751 is a partial list of the
chipsets. The kicker is that it is the onboard chip that controls this, so
going by processor type does not help. Need that iron gate technology for it
to work.
	 You have an AMD 751 southgate chipset on that motherboard (just
looked it up) that cannot handle the high density stuff. They do make an AMD
751 Irongate now but I don't think you can upgrade your board for it. Best
way to tell is if the motherboard can take 1.5 gigs of RAM. if it can then
it is capable of doing the high density stuff for you.As a side note, when I
researched this I noticed that the bottom for high density pc133 sdram 512mb
stick has not reached $32.... My board can take 1.5 gigs of ram and it is
comforting to know that I can pack that much in for $100. I am seriously
thinking of making a 1 gig ide boot drive so that on start-up I can have it
just load the hard drive into main memory to speed things up. 

Michael A. Turner
Systems Engineer
WHRO
michael.turner at whro.org
http://www.whro.org


-----Original Message-----
From: Dan Sikorski [mailto:me at dansikorski.com]
Sent: Tuesday, November 13, 2001 2:55 PM
To: rescue at sunhelp.org
Subject: [rescue] memory trade, anyone? (and misc. x86 rambling)


I have two micron PC133 ECC DIMM's that were purchased from crucial that
i would like to trade.  I can't get them to work in any of my machines,
but they work fine in my friend's KT7 athlon system (they seem to NEED a
133mhz bus, and my machines are all 100 and 66mhz) The labels on the
DIMMS say:

MT9LSDT1672G-133B1 PC133R-333-542-A1
US	BZAB61W010	200120
128MB, SYNCH, 133MHz, CL3, ECC

In exchange, I'm looking for memory that i can use in one of my
machines, ideally, a 256MB PC133 DIMM (non-ECC, probably) or two 128's

On a realated note, can someone tell me why this memory doesn't work? 
My guess is that ECC modules MUST be run at the speed that they are
intended to run at, unlike their non-ECC bretheren.  Does that make
sense?  I tried this memory in my athlon (FIC SD-11) and my dual p2
(funky possibly-prototype micron dual p2 boad with a samurai chipset).

<OT babble>
Actually, that board is a story by itself, perhaps someone can shed some
light on it for me.  I got it on an ebay auction (cheaply, which was a
sign from the beginning) It's a dual p2/p3 board from micron with a
samurai chipset.  The only info i've ever found about such a board all
led to a board that has integrated SCSI and a few other things, which my
board doesn't have.  In linux (the only thing i've ever used the machine
for) the kernel detects the onboard IDE controller, and then proceeds to
detect a few more ide controllers, and locks up, but the board only has
plugs for one IDE controller.  The only way i've gotten around it is by
passing the kernel the options ide2=0 ide3=0, etc. so that it runs out
of ide interfaces supported by the kernel when it gets to those phantom
interfaces.  (trick i thought of from back when the kernel didn't have
real support for the Promise Ultra33 controller that i have) Anyway, i
figure that the board is some prototype or something, and that's why
it's a little funky.  Anyone ever seen a micron/samurai board before?
</OT babble>

hmm... that's enough rambling for now.

	-Dan Sikorski

_______________________________________________
rescue maillist  -  rescue at sunhelp.org
http://www.sunhelp.org/mailman/listinfo/rescue