From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailserv2.iuinc.com (IDENT:qmailr@mailserv2.iuinc.com [206.245.164.55]) by puffin.external.hp.com (8.9.3/8.9.3) with SMTP id XAA17514 for ; Wed, 8 Mar 2000 23:43:33 -0700 Received: from cln.etc.bc.ca (zbsgib@24.65.187.169.bc.wave.home.com [24.65.187.169]) by learn.etc.bc.ca (8.9.3/8.9.3) with ESMTP id VAA24345 for ; Wed, 8 Mar 2000 21:43:29 -0800 (PST) Sender: sshack@learn.etc.bc.ca Message-ID: <38C73A40.968A77C1@cln.etc.bc.ca> Date: Wed, 08 Mar 2000 21:44:32 -0800 From: Steve Shack MIME-Version: 1.0 To: parisc-linux@thepuffingroup.com Content-Type: text/plain; charset=us-ascii Subject: [parisc-linux] Neat hardware on 712. List-ID: Good day puffins, Last night Philipp and myself were playing around with the 712's discusing how to support the powerswitch gracefully when we realized that there was a cable going to the front of the case; Upon further inspection it is a thermal sensor. Some duscussion followed as to how this might be interfaced to the system. As it turns out it works as the following. When the circuit is completed and the sensor is too hot another fan in the back of the 712's power supply turns on. We've yet to determine if there is anything else going on in the system or if there is any way this information is reported back to the os/running system at all but we'll investigate further. Philipp has suspicions about the large number of wires coming on the power header. That perhaps some of those wires are used for signaling. Myself I have a feeling that it might be a combination of that and the two smaller wires coming from the psu. That's all for now. Steve