On Mon, May 26, 2014 at 08:07:52AM +0300, Nikos Chantziaras wrote: > On 22/05/14 00:37, Alex Schuster wrote: > > So I installed another 4 GiB RAM into a Gentoo amd64 system that had 4 GiB > > already. But it still sees only 4 GiB, not 8 GiB: > > > > leela ~ # uname -a > > Linux leela 3.6.11-gentoo #3 SMP Mon Feb 4 15:37:48 CET 2013 x86_64 AMD > > A6-3500 APU with Radeon(tm) HD Graphics AuthenticAMD GNU/Linux > > Emerge sys-apps/memtest86+ and boot it (it should create a Grub entry). > How much memory does it see/test? > > Are there any memory settings in your BIOS? (Possibly related to GPU > memory.) > >
Also, check how the mem card is seated. Remove, and reseat. Mem cards are known to be very picky about how they are seated in their slots. Also, it's not all that uncommon for a particular mem chip (esp. one purchased used) to be defective. HTH. Lee
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