From owner-freebsd-stable Wed Jan 16 8:57:21 2002 Delivered-To: freebsd-stable@freebsd.org Received: from msgbas1.cos.agilent.com (msgbas1x.cos.agilent.com [192.25.240.36]) by hub.freebsd.org (Postfix) with ESMTP id D9F9637B400 for ; Wed, 16 Jan 2002 08:57:16 -0800 (PST) Received: from msgrel1.cos.agilent.com (msgrel1.cos.agilent.com [130.29.152.77]) by msgbas1.cos.agilent.com (Postfix) with ESMTP id 57D4F2DE4; Wed, 16 Jan 2002 09:57:16 -0700 (MST) Received: from mina.soco.agilent.com (mina.soco.agilent.com [141.121.54.157]) by msgrel1.cos.agilent.com (Postfix) with ESMTP id 81ABFD9; Wed, 16 Jan 2002 09:57:15 -0700 (MST) Received: from mina.soco.agilent.com (darrylo@localhost [127.0.0.1]) by mina.soco.agilent.com (8.9.3 (PHNE_22672)/8.9.3 SMKit7.1.1_Agilent) with ESMTP id IAA10812; Wed, 16 Jan 2002 08:57:14 -0800 (PST) Message-Id: <200201161657.IAA10812@mina.soco.agilent.com> To: Stephen McKay Cc: stable@freebsd.org, Brady Montz Subject: Re: VIA crahes - solved (it seems)! Reply-To: Darryl Okahata In-Reply-To: Your message of "Wed, 16 Jan 2002 23:44:20 +1000." <200201161344.g0GDiKb16672@dungeon.home> Mime-Version: 1.0 (generated by tm-edit 1.7) Content-Type: text/plain; charset=US-ASCII Date: Wed, 16 Jan 2002 08:57:14 -0800 From: Darryl Okahata Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Stephen McKay wrote: > I can attest that borderline power supplies can cause a lot of mysterious > trouble, and that the "borderline" has moved in recent times. That's definitely true. Not only has the power requirements of CPUs skyrocketed, but some video cards are now starting to suck up obscene amounts of power, too (as you've found out). Before, you could just use a power supply's overall/total wattage rating. Today, you often have to look at the amount of current the 3.3V line can supply, as it's quite possible that, while a power supply's total wattage may be more than adequate, the power supply may not be able to supply sufficient current on the 3.3V line for a given CPU/speed. In the case of Athlons, getting an AMD-approved power supply for a particular speed CPU should be enough, but may not always be. PCI cards can also suck power from the 3.3V line, which could (in theory, as I don't know of any such PCI cards, offhand) make an AMD-approved power supply inadequate. -- Darryl Okahata darrylo@soco.agilent.com DISCLAIMER: this message is the author's personal opinion and does not constitute the support, opinion, or policy of Agilent Technologies, or of the little green men that have been following him all day. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message