[LUNI] Problems with Dual Channel DDR memory

[me at heyjay.com]

The DIMMs were bought at the same time, are the same size, type and
manufacture, so I suppose the the DIMMs are identical

I only reinstalled the OS because I was playing with apt-proxy, and its a
new box so I'm messing around with it's configuration.

Anyway, I ran memtest86.  It showed ERRORs:

- when I ran in dual channel arrangement
- when I ran memtest86 after doing "memory sizing" and "BIOS-All"

It did NOT show errors:

- when I ran each DIMM individually
- when I ran both DIMMs together in single channel configuration, BUT it did
seem to hang up at 97%, after running ~8hrs (maybe it had already looped
over the whole test suite)

Jay

----- Original Message ----- 
From: "Scott Zionic" <Scott.Zionic at petersweb.com>
To: "'Linux Users Of Northern Illinois - Technical Discussion'"
<luni at luni.org>
Sent: Friday, April 23, 2004 5:36 AM
Subject: RE: [LUNI] Problems with Dual Channel DDR memory


> Jay wrote:
> > yes, its a nvidia based boardbvg
> >
> > Its this board:
> > http://www.newegg.com/app/ViewProductDesc.asp?description=13-1
> > 28-194&depa=1
> >
> > I installed once when I had the DIMMs arranged for single
> > channel, then I read the manual, and put them in Dual config.
> >  then tried to reinstall the OS and it bombed.
> >
> > I'm running a memtest86 as we speak (write)
>
> I'm sure the manual states that the DIMMs must be identical. Are they?
>
> Also, could you define 'bombed'?
>
> It is my understanding (someone please correct me if I'm wrong) that dual
> channel capabilities are handled by the BIOS. Is it really necessary to
> reinstall the OS in order to take advantage of dual channel? Or are you
> talking about rebuilding the kernel? If you're talking about rebuilding
the
> kernel, which setting are you changing in the kernel config?
>
> Scott
>
>
>
> -- 
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>
>