Jean, I am as certain as I can be that I am using a LM82. The chip is on two different motherboards, one is from Avantech and one is a custom job. Our schematic calls out a LM82 and the chip has this text on it: 43AB 82CI MQA I don't know what "43AB" refers to, but "82CIMQA" is part of the order number "LM82CIMQA". The Avantech demo board has the same chip, except that the first number is "42AB". The BIOS on the Avantech board calls it a LM82. It could be that the LM82 and LM83 have an identical uC inside and just the packaging is different. Ben -----Original Message----- From: Jean Delvare [mailto:khali at linux-fr.org] Sent: Friday, June 10, 2005 1:43 PM To: Gardner, Ben Cc: lm-sensors at lm-sensors.org Subject: Re: How can I skip i2c detection? Hi Ben, > ~ # i2cdump 0 0x4c > (...) > 30: 7f 7f 7f 7f 7f 24 24 24 7f 7f 7f 7f 7f 7f 7f 7f Hm, this is becoming even weirder. Same ID as the LM83 (which doesn't match the datasheet...), and additionally register 0x35 reads 0x24, which means D1 and D3 open on the LM83, while this register is supposedly 0 on the LM82. This also corroborates the 127 degrees C you report for temp2 and temp4, which is the documented LM83's behavior when no diode is connected, while the LM82 datasheet suggests 0 for these registers. So I start wondering... are you *absolutely certain* that what you have is an LM82 and NOT an LM83? -- Jean Delvare
