[SOLVED] Re: more than 12G of RAM

[Gary Dale <garydale@torfree.net>]

On 12/02/14 12:54 PM, Dan Purgert wrote:
> On 12/02/2014 11:26, Gary Dale wrote:
> > On 12/02/14 07:40 AM, Roberto Scattini wrote:
> > > On Wed, Feb 12, 2014 at 2:25 AM, Gary Dale <garydale@torfree.net
> > > <mailto:garydale@torfree.net>> wrote:
> > >
> > >
> > >     Sorry everyone, but the memory sticks all work fine. Memtest+
> > >     shows 8G working when I run it against the 2x4G and the 1x8G. My
> > >     system runs fine, except for the thrashing, with 8G. It's one
> > >     application that causes the thrashing and Free shows the heavy
> > >     swap use when it's running. With 12G, the thrashing pretty much
> > >     stops.
> > >
> > >
> > > gary, you should check stan's suggestion and update your BIOS to latest
> > > version...
> > It already is the latest version. I've reported the problem to Gigabyte.
> > Hopefully they will have a fix but I suspect they will decide the bug 
> > in their
> > BIOS is an "unsupported configuration".
>
> Totally off the wall - but did you try grabbing the chipset drivers 
> from AMD? Granted, it's been ages since I can recall a generic not 
> working ... but doesn't mean it's not possible.
Gigabyte insists that it supports the configuration and doesn't seem to 
want do more than check that the BIOS sees the memory.

However, after further experimenting, I found  a configuration that 
worked. The 2x4G modules have to be in the first interleaved channel 
(DDR3_1 & DDR3_2) with the 8G stick in DDR3_4. All other configurations 
seem to fail.