From owner-freebsd-current Sun Jul 18 22:17:16 1999 Delivered-To: freebsd-current@freebsd.org Received: from dorifer.heim3.tu-clausthal.de (dorifer.heim3.tu-clausthal.de [139.174.243.252]) by hub.freebsd.org (Postfix) with ESMTP id 79DDF14EF7 for ; Sun, 18 Jul 1999 22:17:13 -0700 (PDT) (envelope-from olli@dorifer.heim3.tu-clausthal.de) Received: (from olli@localhost) by dorifer.heim3.tu-clausthal.de (8.8.8/8.8.8) id HAA21639 for freebsd-current@FreeBSD.ORG; Mon, 19 Jul 1999 07:16:59 +0200 (CEST) (envelope-from olli) Date: Mon, 19 Jul 1999 07:16:59 +0200 (CEST) From: Oliver Fromme Message-Id: <199907190516.HAA21639@dorifer.heim3.tu-clausthal.de> To: freebsd-current@FreeBSD.ORG Subject: Re: Question about MTRR boot message Organization: Administration Heim 3 Reply-To: freebsd-current@FreeBSD.ORG MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: TIN [version 1.2 RZTUC(3) PL2] Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG First, thank you for answering my question. Amancio Hasty wrote in list.freebsd-current: > Is a nice feature if you happen to have a fast video card . It speed up writes > by > four times. That particular box of mine contains an ISA VGA graphics card with 256 Kbyte video memory. It's a server, not a desktop machine (in fact it wouldn't need a gfx card at all, but it's more convenient than a serial console). > The MTTR stuff is an old hack which some motherboards enabled it > automatically for you. > > So to answer your question , the MTTR stuff is supposed to disabled caching > to your VGA card. OK, so it has nothing to do with disabling caching for my main memory, which was my concern. :-) Thanks for making that clear. BTW, is there a way to disable that MTRR stuff? Just to be sure... And I really don't need it. Regards Oliver -- Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany (Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de) "In jedem Stück Kohle wartet ein Diamant auf seine Geburt" (Terry Pratchett) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message