Date: Tue, 3 Jan 2023 16:51:20 +0100 From: Eivind Nicolay Evensen <eivinde@terraplane.org> To: Jonathan Vasquez <jon@xyinn.org> Cc: eugen@grosbein.net, freebsd-stable@freebsd.org Subject: Re: Memory question Message-ID: <20230103165120.4d674742@elg.hjerdalen.lokalnett> In-Reply-To: <20230103163733.55cb11cc@elg.hjerdalen.lokalnett> References: <20230103140404.5f71b0ad@elg.hjerdalen.lokalnett> <c25ca623-a587-b8cf-927f-4b7978ea2329@grosbein.net> <20230103143716.703d42ca@elg.hjerdalen.lokalnett> <20230103151824.196420f1@elg.hjerdalen.lokalnett> <SZRYzxs_QjHXHXahN40oJhtpSSZaBDFmgU6Yu-u4eNEbwC3912aukmPN7RNM4RPk4Azu8VRqoARINLVjcvBDcu7DIfGqGgwef-f9hZwaB_o=@xyinn.org> <20230103163733.55cb11cc@elg.hjerdalen.lokalnett>
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Den Tue, 3 Jan 2023 16:37:33 +0100 skrev Eivind Nicolay Evensen <eivinde@terraplane.org>: > Den Tue, 03 Jan 2023 14:46:08 +0000 > skrev Jonathan Vasquez <jon@xyinn.org>: > > > 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. > > You might be onto something here. I swapped the modules so I now > have 8 - 4 - 8 - 4 in slots 1 to 4 respectively. And that gives > me: > > real memory = 25769803776 (24576 MB) > avail memory = 12410671104 (11835 MB) > > That at least tells me that 8GB modules are supported. > I'll have to check yet again if there's a setting in the bios > for doublebuffering. And finally, after just resetting the bios, it looks right: real memory = 25769803776 (24576 MB) avail memory = 24953413632 (23797 MB) Which in itself is interesting. I reset the same after I had changed the bios battery some time ago and didn't change anything. So whether or not the moving of the memory modules were necessary, I don't know and I probably won't bother checking, at least for a while, but it's a tip I'll look for the next time. Thanks to everybody for your input. -- Eivind Nicolay Evensen
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