Date: Wed, 16 Jan 2002 08:57:14 -0800 From: Darryl Okahata <darrylo@soco.agilent.com> To: Stephen McKay <mckay@thehub.com.au> Cc: stable@freebsd.org, Brady Montz <bradym@mail.hydrologue.com> Subject: Re: VIA crahes - solved (it seems)! Message-ID: <200201161657.IAA10812@mina.soco.agilent.com> In-Reply-To: Your message of "Wed, 16 Jan 2002 23:44:20 %2B1000." <200201161344.g0GDiKb16672@dungeon.home>
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Stephen McKay <mckay@thehub.com.au> 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.
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