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Kompuutteri Kaikille K-CD 2000 #12
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MBProbe
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techinfo.txt
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MBProbe
Technical Info
Copyright 1998-99 Jonathan Teh Soon Yew
http://web.bham.ac.uk/jst829/mbprobe/
Motherboards
------------
Most motherboards will work on the default MBProbe settings for voltage and
temperature sensors. The following lists some exceptions:
(Look for the sensor detected, then look for your board under that section)
If your board uses non-default settings, please mail me about it. Thanks.
o GL518SM
Aopen boards
MB Temp: None CPU Temp: GL518SM:1
Motherboard temperature offset: -4 C
o LM75
Pentium MMX Mobile Module (includes mobile 430TX chipset)
MB Temp: None CPU Temp: LM75:0
o LM78/79
All boards should set CPU temperature to "None" except:
Tekram P6B40-A4X
MB Temp: LM78:1 CPU Temp: LM78:2
Select 'LM78' voltage divider
CPU temperature reading is accurate only in the 23-78C range
o LM80
Voltages are adjusted for the QDI Brilliant IS.
If you get incorrect voltages, please report it.
o MAX1617(A), ADM1020, ADM1021, THMC10, LM84
For all systems, setting without R indicates temperature of the chip itself
while the setting with R indicates temperature from an external diode, such
as the one in the Pentium II/III.
Mobile Pentium II
MB Temp: None CPU Temp: MAX1617:8R
Pentium II Mobile Module (includes mobile 440BX chipset)
MB Temp: MAX1617:9 CPU Temp: MAX1617:9R
Pentium II/III Xeon
MB Temp: (see mobo) CPU Temp: MAX1617:?R
o SiS5595
All boards should set CPU temperature to "None".
Elite P5SS-ME
MB Temp: SiS5595:2 CPU Temp: None
Select 'LM78' voltage divider
PC-Chips M590
Select 'Alternate' voltage order
o VT82C686A
All boards:
MB Temp: VT82686A:3 CPU Temp: VT82686A:1
All temperature readings are accurate only in the 0-80C range
o W83781D
All boards should use default settings except:
Elite, Epox boards
MB Temp: W83781D:3 CPU Temp: W83781D:2
o W83782D
Abit BX6 rev 2
MB Temp: W83782D:1 CPU Temp: W83782D:2 (CPU thermal diode)
Enable CPU thermal diode on Sensor:2
CPU Temp: W83782D:3 (thermistor)
Abit BP6
MB Temp: W83782D:3 CPU1 Temp: W83782D:2 CPU2 Temp: W83782D:1
Abit BM6, ZM6
MB Temp: W83782D:3 CPU Temp: W83782D:2
Gigabyte 6BXE
MB Temp: W83782D:1 CPU Temp: W83782D:3 (CPU thermal diode)
Enable CPU thermal diode on Sensor:3
CPU Temp: W83782D:2 (thermistor)
o W83783S
Abit BE6
MB Temp: W83783S:2 CPU Temp: W83783S:1
CPU temperature offset
----------------------
Use the following as a guide only (figures in Celsius):
AMD 5k86 PR133 : + 8
AMD 5k86 PR166 : +17
AMD K6 166-200 : + 7
AMD K6 233-300 : +20
AMD K6-2 450 : + 6
Cyrix MII PR200 : +15
IDT WinChip C6 : +20
Intel Pentium : +32
Intel Pentium MMX : +22
If your CPU is not listed, check the temperature in the BIOS and compare it
with the temperature reported by MBProbe. Take the difference as the offset
and submit a report to me. Thanks.
Monitoring chip features
------------------------
The following table shows the number of inputs available for each type of
reading:
Hardware monitoring chips
Internal External
Voltage Fan Temperature Temperature VID Notes
ADM1022 - - 1 2 - 3,9
ADM1025 6 2 1 1 5 3,5
FMS2701 - - 1 1 - 3,9
GL518SM 1 2 0 1 - 2
GL520SM 4 2 0 2 5 2
Heceta2 6 2 1 - 5 4
Heceta3 4/6 2 1 2/3 5 3,4,6
LM78 7 3 1 - 4 8
LM79 7 3 1 - 5
LM80 7 2 1 - -
LM81 6 2 1 - 5 4
THMC50 - - 1 1 - 3,9
W83781D 7 3 0 3 5 2,11
W83782D 9 3 0 3 5 1,10
W83783S 6 3 0 2 5 1
SiS5595 4/5 2 1 - - 7
VT82C686A 5 2 1 2 -
Notes
1 External temperature measurement requires thermistors or diodes.
2 External temperature measurement requires thermistors.
3 External temperature measurement requires diodes.
4 Voltage input for Vccp2 can also function as -12V.
5 Vccp2 reading is actually the chip's Vcc.
6 When temperature input 3 is enabled, Vccp2 and +2.5V are disabled
as they are the same pins.
7 The data sheet only mentions one temperature input but the the Elite
P5SS-ME has the temperature at a different location so I'm calling that
the second temperature input.
8 At least one board (Tekram P6B40-A4X) uses Vccp2 to connect an external
thermistor so MBProbe displays 2 temperature readings for the LM78.
9 These chips can also monitor 2 voltages for brownouts but there is no way
of reading the actual voltage values.
10 The W83627HF is compatible with this.
11 The AS99127F is compatible with this.
Temperature-only monitoring chips
(external temperature requires additional diodes)
Internal External
Temperature Temperature
LM75 1 -
MAX1617 1 1
Note: The LM84, ADM1020, ADM1021 and THMC10 are all register compatible with
the MAX1617.
CPU Core Voltage
----------------
The following table identifies the correct (non-mobile) CPU core voltages
(variants which confuse MBProbe are marked as such):
AMD
5k86 : 3.52V
K6 PR233 : 3.2V \
K6 .30u : 2.9V / identical CPUID
K6 .25u : 2.2V
K6-2 : 2.2V, 2.4V
K6-III : 2.2V, 2.4V
Athlon : 1.6V
Cyrix
6x86 : 3.52V \
6x86L : 2.8V > identical CPUID
6x86LV : 2.45V /
686MX/MII : 2.9V \
MII >=PR366 : 2.2V / identical CPUID
IDT
WinChip C6 : 3.3V (std), 3.52V (VRE)
WinChip 2 : 3.3V (std), 3.52V (VRE)
Intel
Pentium : 3.3V (std), 3.52V (VRE)
Pentium MMX : 2.8V
Pentium Pro : 3.3V
Pentium II .28u : 2.8V
Celeron : 2.0V
Pentium II .25u : 2.0V
Pentium III : 2.0V \
Pentium III >=533 : 2.05V / identical CPUID
Pentium III E : 1.65V
Rise
mP6 .25u : 2.8V
mP6 .18u : 2.0V
The only way to be sure of the CPU voltage is to look at the voltage printed
on it.
References
----------
Data Sheets
Acer Labs Incorporated (www.acerlabs.com)
- M1533 (Ver 1.57)
- M1535 (Ver 1.00)
- M1535D (Ver 1.00)
- M1543C (Ver 1.27)
- M1543C B1 (Ver 0.91)
Advanced Micro Devices (www.amd.com)
- AMD-756 Peripheral Bus Controller (22548, Rev B, Aug 1999)
Analog Devices (www.analog.com)
- ADM1020 (Rev.0, C3445-4, Apr 1999)
- ADM1021 (Rev.0, C3354-3, Jul 1998)
- ADM1022 (Rev PrJ, Mar 1999)
- ADM1024 (Rev PrE)
- ADM1025 (Rev PrJ, Mar 1999)
- ADM9240 (Rev.0, C3295-8, Mar 1998)
Dallas Semiconductor (www.dallas.com)
- DS1780 (28 Jul 1998)
Fairchild Semiconductor (www.fairchildsemi.com)
- FMS2701 (Rev 1.0.2, 26 May 1999)
Genesys Logic (www.genesyslogic.com)
- GL518SM (Rev 1.17, 13 Apr 1998)
- GL520SM (Rev 1.02, 13 Apr 1998)
Intel (developer.intel.com)
- Heceta 2 ASIC (Rev 1.03, 30 Dec 1997)
- 82371AB (PIIX4) (290562-001, Apr 1997)
- 82371AB (PIIX4) Specification Update (297738-011, Apr 1999)
- 82371EB (PIIX4E) Specification Update (290635-007, Apr 1999)
- 82801AA (ICH) and 82801AB (ICH0) I/O Controller Hub (290655-01, Apr 1999)
- Mobile Pentium II Processor and Pentium II Processor Mobile Module
Thermal Sensor Interface Specifications (AP-825, 243724-001, Apr 1998)
- Pentium II Xeon Processor (243770-003, Jun 1998)
- Pentium III Xeon Processor (245094-001, Feb 1999)
Maxim (www.maxim-ic.com)
- MAX1617 (19-1265; Rev 1; Mar 1998)
- MAX1617A (19-4508; Rev 0; Jan 1999)
National Semiconductor (www.national.com)
- LM75 (DS012658, Jun 1999)
- LM78 (DS012873, Jun 1999)
- LM79 (DS100036, Jun 1999)
- LM80 (DS100040, Jun 1999)
- LM81 (DS100072, Jun 1999)
- LM84 (DS100961, Jun 1999)
Silicon Integrated Systems (www.sis.com.tw)
- SiS5595 (Preliminary, Rev 1.0, 24 Dec 1997)
Texas Instruments (www.ti.com)
- THMC10 (Rev 0.5, Jan 1999)
- THMC50 (SLIS090, Jul 1999)
VIA Technologies (www.viatech.com)
- VT82C596A (Rev 1.1, 9 Dec 1998)
- VT82C686A (Rev 1.0, 15 Jan 1999)
Winbond (www.winbond.com.tw)
- W83781D (version 0.63, 13 Jan 1998)
- W83782D (version 0.55, Apr 1999)
- W83783S (version 0.55, Apr 1999)
- W83627HF/F (version 0.52, 11 Jan 1999)
PCI Local Bus Specification (Rev 2.1, 1 Jun 1995)
System Management Bus (www.sbs-forum.org/smbus/specs/)
- System Management Bus Specification (Rev 1.1, 11 Dec 1998)
D. Roberts, "Direct Port I/O and Windows NT", Dr. Dobbs Journal, May 1996.
Various CPU info sheets at www.sandpile.org