On Sun, 9 Jan 2011 17:35:13 -0800, Guenter Roeck wrote: > On Sun, Jan 09, 2011 at 07:10:53PM -0500, Stan Hoeppner wrote: > > Jean Delvare put forth on 1/9/2011 4:11 PM: > > > > > If soldering things is an option, then many recent boards have an SMBus > > > header, so it would be possible to choose any supported SMBus-based > > > hardware monitoring device and wire up everything manually. > > > Good point ... > > > The board in question is 10+ years old, but it does have a 5 pin SMBus header. > > The board is the legendary Abit BP6. Unfortunately the manual doesn't provide > > the pin assignments for this SMBus connector, though it does for all the other > > connectors. Strange. > > > Of the five pins, one will be Ground, one will be VCC. There may be another ground > or possibly alert, plus I2C data and clock. > > Should be easy to figure out Ground and VCC. That leaves three additional pins > to play with, so it should be possible to find out what is what by trying. > > > Could you suggest a few inexpensive models of such lm-sensors compatible SMBus > > based hardware monitoring devices containing, say, 1-3 thermal sensing circuits > > (with probes/lead wires), and maybe a few non-PWM fan RPM sensing/driving circuits? > > > max6696 supports three sensors (one internal, two external). Besides the sensors, > all I needed to wire the chip was one capacitor and one resistor, plus another > capacitor for each of the external sensors. The datasheet has a nice sample picture. > You might need additional resistors to set the chip's i2c address if you want to support > more than one chip, plus a zener diode and another resistor to generate 3.3V if the board > only provides 5V. > > Tricky part is that the chip is in uMAX or QSOP package with .5mm or .635mm pitch, > so you'll need a good soldering iron and a calm hand to do the soldering, or find > some HW guy to do it for you. > > Of course, you could simply buy MAX6695EVKIT. I don't know the price, but usually > Maxim's evaluation board pricing is quite reasonable. Other solutions include the Texas Instruments TMP421 (3 external thermal sensors), National Semiconductor LM63 (1 external thermal sensor + 1 fan monitoring input), all LM85-compatible chips (2 external thermal sensors + 4 fan monitoring inputs, SMSC EMC2103 (3 external thermal sensors + 1 fan monitoring input) and Analog Devices ADM1031 (2 external thermal sensors + 2 fan monitoring inputs.) You can put more than one of each on the same SMBus segment. > > Also, will lm-sensors and the sensors user space program work with two > > monitoring chips simultaneously? Yes, definitely. I'm doing that all the time. > > Does anyone know if phpsysinfo will, or can > > with additional tweaking, display data from both devices? As far as I know, phpsysinfo merely parses the output of "sensors", so there is no reason why it wouldn't work. -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
