Re: Memory question

I know for Intel mobos (and prolly AMD follows the same guidelines) for double buffered memory, the identical slots should be placed in slot 1+3 and 2+4. I noticed slot 1 and 2 is 8GB and 3 and 4 are 4 GB. Try putting the 8GB in 1+3, and 4 GB in 2+4, and see if that makes any difference. It may not be double buffer but I'm banking on that behavior.

Jonathan Vasquez
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-------- Original Message --------
On Jan 3, 2023, 09:17, Eivind Nicolay Evensen wrote:

> Den Tue, 3 Jan 2023 14:37:16 +0100 skrev Eivind Nicolay Evensen : > Den Tue, 3 Jan 2023 20:09:14 +0700 > skrev Eugene Grosbein : > > > 03.01.2023 20:04, Eivind Nicolay Evensen wrote: > > > > > This might be more related to a bios setting or issue, but I hope > > > somebody can give me hints in the right direction to remedy or > > > at least diagnose this issue further. > > > > > > I installed more memory in one machine and now I see this > > > in dmesg: > > > > > > real memory = 25769803776 (24576 MB) > > > avail memory = 8237150208 (7855 MB) > > > > > > Real should be right, from before there were two 4 GB dimms in > > > there, and I inserted two more 8 GB ones. > > > > > > Transcribed from BIOS: > > > > > > DIMM(s) 1 2 > > > 3 4 Installed Size 8192 > > > 8192 4096 4096 Enabled > > > Size 8192 8192 > > > 4096 4096 Total Size 24576 > > > > > > I was wondering if the reason could be that this machine has been > > > updated since older versions and bootloader may be old or > > > whatever, so I also tried booting a linux. However, that also > > > only uses 8 GB, and says (at least in a way I understand) less > > > about what it can really see. > > > > > > This is amd64 FreeBSD 13.1. > > > > > > Is there any way I can use the rest of the memory? Or at least > > > find out which dimms it is actually using? > > > > I was in similar situation once. There was Atom-based hardware setup > > with CPU not having embedded memory controller; instead, it used > > memory controller on motherboard. That memory controller had similar > > limitation. One cannot overcome it. > > > > You should specify your hardware. > > > > > > Thanks for the comments. > > Here's the dmesg: I received a private reply that dmidecode would be of better help. Since the output is rather large I put it here: http://www.stigaas.no/m/dmi.txt -- Eivind Nicolay Evensen