Subject: Re: AlphaServer GS140
To: Wilko Bulte <>
From: Pasi Pirhonen <>
List: port-alpha
Date: 09/24/2003 19:44:54

On Wed, Sep 24, 2003 at 02:23:30PM +0200, Wilko Bulte wrote:
> On Wed, Sep 24, 2003 at 03:06:23PM +0300, Pasi Pirhonen wrote:
> >   
> > I did come back last night to make some more tests. Results vere
> > but consistent. If i have more than one memoryboard attached, it's
> > HALTing riht after starting the kernel for something (no copypaste)
> > 'Memory Management Error' 
> Wasn'nt there a hard limit at 2GByte main memory for Tlaser systems?
> At least the code FreeBSD adopted from NetBSD cannot handle more. Of
> it could be that this limit has been removed from NetBSD in the
> I have insufficient time :-( to keep up with the various developments
> in *BSD.
I don't know, but as the alpha has been 64bit system from very
i find it very hard to believe that i would have such limits?
This is actually my first alpha which have more than 512MB memory, so i 
am bit lost (not to mention that the system is 'partitionable' arch :)
> My 8400 was quite unhappy when I had > 2GB installed (it had 12GB and
8 CPUs
> at the time). We no longer have it inhouse, and I have not tried any
> the *BSDs on the GS60E we now have sitting in our lab.
It's very hard me to verify this kind of setup as i have three boards  
and 4GB/board. I don't think i can just rip of half of the memory from 
the board or can i? I opened one and saw 80pin SIMMs (hey, it's digital 
you know - 80pin is very familiar from VAXen and DECstations :)
From the amount (forgot to calculate exact count) those are 128MB
P00>>>show memory
Set   Node   Size        Base Address         Intlv   Position
---   ----   ----      -------- --------      -----   --------
 A      4    4096 Mb   00000000 00000000      8-Way      0
 A      5    4096 Mb   00000000 00000000      8-Way      1
 B      7    4096 Mb   00000002 00000000      4-Way      0

Makes me wonder that there are actually 4x1GB banks in one board as the 
odd one is claimed to be 4-way interleaved.
So can anyone verify that i can just rip of half the memory and test
with 2GB?

And we're talking about GS140, which is 6/525. 8400 is supposed to be
5/440? Gneration difference with CPUs and stuff?

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