On 11 Sep 2002, Xavier Bestel wrote:
> Le mer 11/09/2002 � 22:51, Mark Vojkovich a �crit :
> > Do you have alot of power consumption in your system? How
> > many Watts can the power supply provide? Can you hear phenomenon
> > like your fans sounding like their RPMs are dropping when you
> > do cpu or graphics intensive tasks? Even if the power supply
> > itself is OK, it could be a regulation problem on the board.
>
> I have a 150W PSU (a "Wintech"), on a dual-pIII 1GHz (with big fans
> which sound a bit like a 747 taking-off), 2 HDDs, an internal Zip, a
> DVD, a CDRW, an IEEE1394 card, an eth card, a sound card, and obviously
> a R128 AGP and a TNT2 PCI. I have to admit I really don't know how much
> power all this may drain.
> And yes, I can tell the CPUs load just by listening to the fans.
I'm thinking 150 Watts really isn't enough for that. My main
machine has a similar setup (dual PIIIs and two video cards) and
I have a 235 Watt power supply which I'd consider marginal. I have
an HP dual P4 machine here with a 465 Watt power supply in it.
If your fans are speeding up when the CPU is going full bore
(some inteligent cooling system) that is good. If they are slowing
down, that means they're starved for power. That's usually not a
good sign. I have seen fan slowdowns in other machines and I've
generally considered that as a tip-off that there are power problems.
Mark.
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