Date: Sat, 8 Jan 2000 22:35:40 -0800 From: David Bushong <david@bushong.net> To: R Joseph Wright <rjoseph@nwlink.com> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: CPU voltage (was Re: load spike strangeness) Message-ID: <20000108223540.A58762@Bushong.NET> In-Reply-To: <387824C0.F56ACAE4@nwlink.com>; from rjoseph@nwlink.com on Sat, Jan 08, 2000 at 10:03:44PM -0800 References: <200001090555.GAA88547@dorifer.heim3.tu-clausthal.de> <387824C0.F56ACAE4@nwlink.com>
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On Sat, Jan 08, 2000 at 10:03:44PM -0800, R Joseph Wright wrote:
> Awhile back I was having trouble getting through kernel compiles, the
> machine would reboot during the compile. Someone on some newsgroup said
> "are you overclocking?". I checked my settings. No, I wasn't
> overclocking. But my voltage setting looked wrong. It was set at 2.2
> volts or whatever and I thought it was supposed to be at 2.4. So I
> changed it to 2.4. My problem was solved. I was flying through the
> compiles. Then I was looking through my motherboard manual and realized
> that it was supposed to be set at 2.2 after all. I prefer it the way it
> is though. Do you think there is anything wrong with that?
>
Hmm. lmmon -i produces some scary results:
Voltages
Vcore1: +2.781V
Vcore2: +1.469V
+ 3.3V: +3.312V
+ 5.0V: +4.932V
+12.0V: +12.250V <--
-12.0V: -13.125V <--
- 5.0V: -5.532V <--
Those look disturbingly off.. maybe this much drift is common, I don't know.
However, I never have any problem with the machine, other than this benign
occurance.. and I do tend to tax it every now and again (couple ports
building, world building, mp3 encodes, the usual). Ack, can't believe I
forgot to mention I'm running with soft updates enabled on both drives
(and root). While I was reading this thread btw, I got another spike, and
by measuring pixel widths in xload, came up with 30 pixels @ 10 seconds per
pixel, or 300 seconds, or exactly 5 minutes, which seems awfully round.
Re: overclocking thing: ok, people, I know it's my machine. Take a chill
pill. I have a very stable CPU, a well ventilated machine, and a jumperless
motherboard that makes it very easy to switch settings. However, as I have
said, this machine has been rock solid (except for during a few of those
sketchy 3.1 release ;) I'll go ahead and try turning off the overclocking
and see if
a) it affects the voltage (which does worry me a bit)
b) I continue to see this load strangeness (I suspect I will)
--David Bushong
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