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SpeedFan 4.52 Copyright 2000-2020 by Alfredo Milani Comparetti |
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LM75 (sensor)
Added by ALMICO on 20 may 2001
Description: |
The LM75 is a temperature sensor, Delta-Sigma analog-to-digital converter, and digital over-temperature detector with I2C interface. The host can query the LM75 at any time to read temperature. The open-drain Overtemperature Shutdown (O.S.) output becomes active when the temperature exceeds a programmable limit. This pin can operate in either Comparator or Interrupt mode. The host can program both the temperature alarm threshold (TOS) and the temperature at which the alarm condition goes away (THYST). In addition, the host can read back the contents of the LM75's TOS and THYST registers. Three pins (A0, A1, A2) are available for address selection. The sensor powers
up in Comparator mode with default thresholds of 80C TOS and 75C THYST. The LM75's 3.0V to 5.5V supply voltage range, low supply current and I2C interface make it ideal for a wide range of applications. These include thermal management and protection applications in personal computers, electronic test equipment, and office electronics. |
| Feature | |
Date | |
Vote | |
Voted by | |
Comment | |
| Power | 15 aug 2006 | 1 | NOIZER |
In Asus A8N-SLI Premium always shows 127° |
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| 24 may 2006 | 1 | DRSTRANGELOVE |
Always shows 1ºC on GA-8IPE1000. ATI Tray Tools reads correctly. |
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| 03 may 2006 | 1 | WANDREWHOMEBOX |
my LM75 always show 1C on nForce2 SMBus. MB:GigaByte K8NF-9 |
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| 30 apr 2006 | 4 | BACTERIO |
always shows 25ºC on my Gigabyte 8IPE1000-G |
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| 12 mar 2006 | 1 | FIGN64 |
BFGRNF4U and GeForce 6800 GT 125C all the time x2 |
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| 30 dec 2005 | 5 | FEFE |
Damn... I forgot that I set them to an offset of +2 :) so there are 2 duplicated items... |
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| 29 dec 2005 | 5 | FEFE | |||||||
| 13 nov 2005 | 5 | HAIPO99 |
It always shows 1C on my Gigabyte GA-K8NXP-9. |
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| 09 sep 2005 | 6 | TEKILLA | |||||||
| 28 jul 2005 | 4 | PHILIPO |
Shows 127C on my Asus A8V Deluxe :( |
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| 19 jul 2005 | 1 | GWINRU |
show 1° C on my gigabytes K8NF9 Nforce4 |
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| 22 jun 2005 | 4 | RAFIKI560 | |||||||
| 21 mar 2005 | 5 | BACTERIO |
Speedfan 4.22 detects it on SMBus, but reports only 0ºC |
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| Reliability | 29 oct 2012 | 1 | CACCHIP |
Always reads 162 F on BIOSTAR T5 XE CFX-SLI LGA 1156 |
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| 15 sep 2012 | 1 | LABELFLASH |
Always reads 0C on Gigabyte GA-Z68X-UD4-B3 |
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| 11 feb 2011 | 1 | RODPAD |
Reads permanently as 2°C on Gigabye P55-US3L |
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| 11 feb 2011 | 1 | RODPAD | |||||||
| 14 jan 2011 | 1 | PMIDDELDORP |
Gigabyte P55-UD4 shows -128 C ?? |
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| 30 dec 2009 | 1 | MUNAPHZ |
read on 50° up on asus P4PE-X |
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| 23 sep 2008 | 1 | NKENKO |
Always shows 126C on ASUS P5ND2-SLI Delixe |
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| 29 mar 2007 | 4 | BOOMER |
Always show 90 or -7 C on BIOSTAR P4m80-M4 |
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| 30 nov 2006 | 1 | AKIRRA83 |
Always show 124° on Asus A8n SLI deluxe (bios 1016) |
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| 14 nov 2006 | 1 | KIKE_1974 |
reads 127 and 126 on Asus K8N-SLI Deluxe and Geforce 6600 |
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| 01 nov 2006 | 1 | JAKE |
reads 127C x2 on asus k8vsedx |
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| 26 oct 2006 | 1 | ADACHAN |
Reads Geforce7800GT as 126deg at ALL times for both cards on ASUS a8nsli-premium |
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| 10 oct 2006 | 1 | HHYATT |
Always shows 127C on Asus K8N-E |
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| 23 aug 2006 | 1 | VBERG |
Always shows 127C on ASUS P4P800E-DLX |
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| 30 apr 2006 | 5 | BACTERIO | |||||||
| 12 mar 2006 | 1 | FIGN64 |
A8N-SLI Premium GeForce 7800 GT 127 all the time x2 |
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| 16 jan 2006 | 3 | MAME- |
2@126ºC on a K8VSE deluxe. What's it measuring the temp of? Could that be correct?? |
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| 30 dec 2005 | 5 | FEFE |
...but I don''t know that the data comes from 2 different sensors or one, but split into 2 buses (SMBus, ISA) by the mboard? |
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| 29 dec 2005 | 8 | FEFE |
The sensors mentioned below are on Via SMBus. There are 2 showing +2 °C each on ISA bus... it may be a bug of my mainboard? |
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| Ease of use | 16 sep 2009 | 6 | AXELROSE | ||||||
| 30 apr 2006 | 8 | BACTERIO | |||||||
| 12 mar 2006 | 10 | FIGN64 | |||||||
| 16 jan 2006 | 3 | MAME- | |||||||
| 29 dec 2005 | 5 | FEFE | |||||||
| 27 dec 2005 | 10 | HRTSTROKER |
Shows 2 @ 126 degrees and one at 122 degrees on my Asus P5AD2-E Premium |
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| 09 sep 2005 | 4 | TEKILLA |
2 x 127°C and 1 x 121°C on my ASUS P5AD2 Premium |
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| Features | 16 sep 2009 | 6 | AXELROSE | ||||||
| 30 apr 2006 | 4 | BACTERIO | |||||||
| 12 mar 2006 | 10 | FIGN64 | |||||||
| 29 dec 2005 | 7 | FEFE |
I have 2 LM75 readings in SpeedFan, and it seems that these work properly on my Procomp BVD2A w/ VIA Apollo Pro chipset. :P |
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| 15 dec 2005 | 5 | NATODD |
Stays at a constant 127C on my ASUS A8V Deluxe |
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| 03 aug 2005 | 1 | TRIFID |
Shows 56C constantly on Albatron PX915P |
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| 28 jul 2005 | 3 | PHILIPO | |||||||
| 23 jun 2005 | 1 | ORIONROBOTS |
Saw exactly the same as ONO44 |
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| 22 jun 2005 | 2 | RAFIKI560 | |||||||
| 01 apr 2005 | 1 | ONO44 |
Detected on nForce2 SMBus (real nForce3 250), but shows 1ºC |
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