From nobody Tue Jan 3 15:37:33 2023 X-Original-To: freebsd-stable@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4NmcJQ0QHXz2ny4M for ; Tue, 3 Jan 2023 15:35:50 +0000 (UTC) (envelope-from eivinde@terraplane.org) Received: from smtp.domeneshop.no (smtp.domeneshop.no [IPv6:2a01:5b40:0:3006::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4NmcJP4r7bz3hKy for ; Tue, 3 Jan 2023 15:35:49 +0000 (UTC) (envelope-from eivinde@terraplane.org) Authentication-Results: mx1.freebsd.org; none DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=terraplane.org; s=ds202212; h=Content-Transfer-Encoding:Content-Type: MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To:From:Date:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=G/zTecmgSRF7om7P+Gy1tsGwqNz0SYxL5RoHDm63bFc=; b=F44kbOpmWqLCSVjT8Mex9xKIyJ 9CgUcHF/sbKfDupm4eSd131AR7O28B5i/HxkRcEMOFggB/IDslyz3HQktmqClqq0pWPYW9GVPfSaf gN00Z0m1Drpy4Xhc1MFAngPZ/Csifo3+0MDfy55b5pinrNShHxV55XRX4eO41kzsR/XqkRi0LUTtX T24bAWJfpdQJMKr/+e57VTBG5RbdKdLvJ6Qmc1cJGkFoyoCCCb7ziL0oxKLhXIVyMKtCCMdBN9v4h ZLfUNh6aCRmvz5GoUtnr2dl4EACGesT0yzGhrAYIy0jhguhwu3pYkx3QOJo1NQ2oEs1xSgMiK+3o1 QULuYuTA==; Received: from ti0027q160-4408.bb.online.no ([46.9.98.108]:39527 helo=elg.hjerdalen.lokalnett) by smtp.domeneshop.no with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pCjKL-005GV7-7r; Tue, 03 Jan 2023 16:35:45 +0100 Date: Tue, 3 Jan 2023 16:37:33 +0100 From: Eivind Nicolay Evensen To: Jonathan Vasquez Cc: eugen@grosbein.net, freebsd-stable@freebsd.org Subject: Re: Memory question Message-ID: <20230103163733.55cb11cc@elg.hjerdalen.lokalnett> In-Reply-To: References: <20230103140404.5f71b0ad@elg.hjerdalen.lokalnett> <20230103143716.703d42ca@elg.hjerdalen.lokalnett> <20230103151824.196420f1@elg.hjerdalen.lokalnett> List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4NmcJP4r7bz3hKy X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:12996, ipnet:2a01:5b40::/48, country:NO] X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-ThisMailContainsUnwantedMimeParts: N Den Tue, 03 Jan 2023 14:46:08 +0000 skrev Jonathan Vasquez : > 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. -- Eivind Nicolay Evensen