Re: my dual channel DDR 400 RAM won't work on any linux distro

From: Chris Friesen (
Date: Wed Apr 16 2003 - 11:10:10 EST

Brien wrote:

> I ran Memtest86, and there're 290 errors that showed up from test 7. But the
> thing that I don't understand is, if I use either of the RAM modules alone,
> Linux loads and runs perfectly for as long as I've tried; Could it possibly
> be a problem with something besides the RAM (e.g. motherboard, CPU)? And I
> still don't know if my RAM setup is even supported by Linux -- I'm guessing
> that it is though (?).

Memory support is generally not something handled by the OS.

The more RAM modules you've got, the more reactance on the bus to memory. It may
be that the second module is loading down the bus enough that the mobo can't
keep up with the timings. Try easing off a bit on the memory timings and/or
strengthening the memory drive strength.

Linux often shows up memory problems when M$ doesn't since it is a) more
aggressive in its use of memory, and b) capable of driving cpu and chipset
closer to their theoretical limits.


Chris Friesen                    | MailStop: 043/33/F10
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