From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Kevin Diggs <kevdig@hypersurf.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: schizophrenic G5 ...
Date: Tue, 23 Dec 2008 08:03:15 +1100 [thread overview]
Message-ID: <1229979795.4360.18.camel@pasglop> (raw)
In-Reply-To: <494EDB3F.4090604@hypersurf.com>
On Sun, 2008-12-21 at 16:11 -0800, Kevin Diggs wrote:
> Hi,
>
> I have a water cooled dual 2.5 GHz G5 (Powermac7,3). It has YDL 6.0 on
> it. Using the stock YDL 2.6.23 kernel this machine "appears" to work fine.
>
> After finally getting it to boot under 2.6.27, it will shut itself off
> if put under any significant load. And it is doing it very quickly. Like
> within a few seconds of becoming busy. I just discovered it is spitting
> out messages about "temperature way above maximum" (from therm_pm72.c).
>
> This one has the Panasonic cooling system. I have checked behind the
> cover and see no evidence of leaks.
>
> When put under load under the stock YDL kernel, the cpu fans will speed
> up for about 2 minutes. Then over the next minute or so they will slow
> down almost to idle. Thereafter a whirring sound can be heard every 15
> to 30 seconds lasting about 5 seconds. Which I am guessing is the pump?
> The exhaust air barely gets warm?
>
> Anyone have any ideas? Could the cooling system NOT be correctly
> thermally connected to the cpus?
I have approx. the same here taking dust under the desk, I'll give it a
spin but i might have to wait a couple of days...
If mine works, then we'll have to run some more intensive debugging to
see what's going on.
Cheers,
Ben.
next prev parent reply other threads:[~2008-12-22 21:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-22 0:11 schizophrenic G5 Kevin Diggs
2008-12-22 21:03 ` Benjamin Herrenschmidt [this message]
2008-12-23 8:03 ` Kevin Diggs
2008-12-23 16:22 ` Christian Krafft
2008-12-23 20:23 ` Benjamin Herrenschmidt
2008-12-23 20:51 ` Kevin Diggs
2008-12-25 4:48 ` Kevin Diggs
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