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CPU & Motherboard temperatures are the same (Asus P7P55D-E LX)


edwarde54

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I have Intel QuadCore i5-760 @2.80GHz CPU on a ASUS P7P55D E-LX motherboard and I was wondering why are the temperatures of the board & CPU the same. I went to my BIOS to confirm the readings & the motherboard readings from the Bios & AIDA64 are the same except for the CPU which is off by 9 degrees celsius (AIDA64-=35 ; BIOS=44.5) Why is that? Which of the two readings do you suppose is accurate? I wouldn't want to go to my BIOS everytime just to monitor my CPU temperature, how do I make this right? Thank you for your time. Any help is greatly appreciated. Attached a screenshot of current readings.

post-1025-0-31778700-1321761583_thumb.jpg

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Hello,

There is no error in these readings as far as I can see.

During the system startup and when you are in BIOS, the computer always check every components to ensure that it works, thus applying load to the CPU, hence 44.5 degrees. When the Core i5 isn't being utilized, then the temperature would be 35 degrees. Go to the System Stability Test within AIDA64 > Tools and stress the CPU and FPU. Shortly, you will notice that your CPU temperature is close to 44.5 degree or is at 44.5 degrees.

Hopefully this helps!

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Hi,

This seems odd. Your motherboard temperature should not adhere to your processor temperature. Please give Core Temp and HWiNFO32 a try (also RealTemp, too!). If all three software, including AIDA64, reports motherboard and CPU temperature are the same, then there might be some motherboard sensor or DMI table error. If it is only AIDA64 that is giving this strange reading, please debug the sensor by right clicking on the status bar and select Debug Sensor [Console] or something like that. Either reply to this thread with the result (copy and paste) or take screenshot of the window (copy and paste is better). Fiery might be able to help you with the next beta release of AIDA64.

Hopefully this clears some things up! I wish I could be more of help to you.

Take care!

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Sorry for the delay but here's what you asked for.

------[ AIDA64 v2.00.1700 ]------

------[ Microsoft Windows 7 Ultimate 6.1.7601 (32-bit) ]------

------[ Motherboard Info ]------

Motherboard ID : 65-1602-000001-00101111-121610-P55$A1514001_BIOS DATE: 12/16/10 09:57:42 VER: 08.00.15

Motherboard Model : Asus P7P55D-E LX

Motherboard Chipset : Intel Ibex Peak P55, Intel Lynnfield

DMI MB Manufacturer : ASUSTeK Computer INC.

DMI MB Product : P7P55D-E LX

DMI MB Version : Rev 1.xx

DMI MB Serial : MT7006K05801864

DMI SYS Manufacturer: System manufacturer

DMI SYS Product : System Product Name

DMI SYS Version : System Version

DMI SYS Serial : System Serial Number

DMI BIOS Version : 1602

ITE 87xx Port = 00h

ITE 87xx HWMonitor Port = 0000h

ITE 87xx Device ID = 0000h

ITE 87xx Version = 00h

Winbond SuperIO Port = 2Eh

Winbond SuperIO HWMonitor Port = 0290h

Winbond SuperIO Device ID = B353h

Winbond Sensor ID A3/5C/reg$58 = A3 / 5C / C1

Fintek SuperIO Port = 00h

Fintek SuperIO HWMonitor Port = 0000h

Fintek SuperIO Device ID = 0000h

LPC47 SuperIO HWMonitor Port = 0000h

LPC47 SuperIO Device ID = FFFFh

------[ LM78 ISA Sensor Device at 0290 ]------

0000 04 FF 04 FF 10 3C 2D 22 9B 80 01 01 3C 3C 04 04

0010 04 FF 30 00 00 01 01 3C 53 17 00 00 27 FF FF D8

0020 9E D7 D4 D4 D6 FF 29 27 FF 1C FF DA 00 B4 DE E0

0030 0E 8C 65 58 DE 20 AC 7A EF 0D D8 C6 F9 96 92 FF

0040 01 7A 00 FF DF 90 3F 35 2D 24 80 C0 88 95 02 A3

0050 FF FF 00 FF FF FF 00 80 C1 EF FF FF 01 E4 04 05

0060 FF FF 40 FF FF FF FF FF 0A FF 01 FF 01 FF FF FF

0070 04 04 0A 0A 02 64 5F 64 FF FF FF 1F 00 00 24 00

0080 04 FF 04 FF 10 3C 2D 22 9B 80 01 01 3C 3C 04 04

0090 04 FF 30 00 00 01 01 3C 53 17 00 00 27 FF FF D8

00A0 9E D7 D4 D4 D6 FF 29 27 FF 1C FF DA 00 B4 DE E0

00B0 0E 8C 65 58 DE 20 AC 7A EF 0D D8 C6 F9 96 92 FF

00C0 01 00 00 FF DF 40 3F 35 2D 24 80 C0 88 95 02 A3

00D0 49 00 02 7D 00 7F 1A 52 FF FF FF FF FF FF FF FF

00E0 FF FF 40 FF FF FF FF FF 0A FF 01 FF 01 FF FF FF

00F0 04 04 0A 0A 02 64 5F 64 FF FF FF 1F 00 00 24 00

0027 0150 0250 007D 007E

T: 39 39 72 0 36

T: 39 39 72 0 36

T: 37 37 84 0 36

T: 37 37 84 0 36

T: 36 36 83 0 36

T: 36 36 85 0 36

T: 36 36 82 0 36

T: 35 35 85 0 36

T: 36 36 85 0 36

T: 35 35 84 0 36

Bnk0 FF FF 00 FF FF FF 00 80 C1 EF FF FF 01 E4 04 05

Bnk1 23 80 00 4B 00 50 04 BA FF FF FF FF FF FF FF FF

Bnk2 55 80 02 7D 00 7F 1A 52 FF FF FF FF FF FF FF FF

Bnk3 04 02 07 07 04 05 06 04 05 00 00 D0 68 06 00 00

Bnk4 39 13 FF 00 00 00 00 28 33 5A 1D B9 09 5F 20 FF

Bnk5 D7 70 05 FF A3 B2 E7 21 72 B0 00 00 71 00 00 00

Bnk6 7F 7F 7F 7F 7F 7F 00 00 0B 53 00 00 00 00 00 00

Reg$20 CPU Core: r = 158, r*0.016 = 2.53

Reg$21 CPU Aux: r = 215, r*0.016 = 3.44

Reg$22 +3.3 V: r = 212, r*0.016 = 3.39

Reg$23 +5 V: r = 212, r*0.016 = 3.39

Reg$24 +12 V: r = 214, r*0.016 = 3.42

Reg$25 -12 V: r = 255, r*0.016 = 4.08

Reg$26 -5 V: r = 41, r*0.016 = 0.66

------[ ACPI Temperatures & Fans ]------

_TZ_.THM0._TMP :

_TZ_.THM1._TMP :

_TZ_.THR0._TMP :

_TZ_.THR1._TMP :

_TZ_.TZ00._TMP :

_TZ_.TZ01._TMP :

_TZ_.RTMP :

_TZ_.RFAN :

_TZ_.RFAN(0) :

_TZ_.RFAN(1) :

_SB_.ATKD._HID :

_SB_.ATKD.TMPR :

_SB_.PCI0.LPC0.EC0_.CCTV :

_SB_.PCI0.LPC0.EC0_.LRPM :

_SB_.PCI0.LPC0.EC0_.HRPM :

_SB_.PCI0.SBRG.EC0_.ECPU :

_SB_.PCI0.SBRG.EC0_.TACH(0):

_SB_.PCI0.SBRG.EC0_.TACH(1):

_SB_.PCI0.SBRG.EC0_.TAH0 :

_SB_.PCI0.SBRG.EC0_.TAH1 :

_SB_.PCI0.SBRG.EC0_.ST00 :

_SB_.PCI0.SBRG.EC0_.SC01 :

_SB_.PCI0.SBRG.EC0_.SC02 :

_SB_.PCI0.SBRG.EC0_.SC03 :

_SB_.PCI0.SBRG.EC0_.SC04 :

_SB_.PCI0.SBRG.EC0_.SC05 :

_SB_.PCI0.SBRG.EC0_.SC06 :

_SB_.PCI0.PIB_.EC0_.TCRT :

_SB_.PCI0.SBRG.EC0_.CTPM :

_SB_.PCI0.SBRG.EC__.CPUT :

_SB_.PCI0.SBRG.EC__.SYST :

_SB_.PCI0.LPC_.EC0_.CTMP :

_SB_.PCI0.LPCB.EC0_.CTMP :

_SB_.PCI0.LPC_.EC0_.TMP1 :

_SB_.PCI0.LPC_.EC0_.TMP2 :

_SB_.PCI0.LPC_.EC0_.TMPI :

_SB_.PCI0.LPC_.EC0_.TMPV :

_SB_.PCI0.LPCB.EC0_.A1TP :

_SB_.PCI0.LPCB.EC0_.A2TP :

_SB_.PCI0.LPCB.EC0_.FAN0 :

_SB_.PCI0.LPCB.EC__.TS1R :

_SB_.PCI0.LPCB.EC__.TS2R :

_SB_.PCI0.LPCB.EC__.TS3R :

_SB_.PCI0.LPCB.EC__.F1FL :

_SB_.PCI0.LPCB.EC__.F1FH :

_SB_.PCI0.LPCB.EC__.F2FL :

_SB_.PCI0.LPCB.EC__.F2FH :

_SB_.PCI0.LPC_.H8EC.RTMP :

_SB_.PCI0.LPC_.H8EC.LTMP :

_SB_.PCI0.LPC_.H8EC.MTMP :

_SB_.PCI0.LPC_.H8EC.GTMP :

_SB_.PCI0.LPCB.H8EC.CTMP :

_SB_.PCI0.LPCB.H8EC.DTMP :

_SB_.PCI0.LPCB.H8EC.GTMP :

_SB_.PCI0.LPCB.H8EC.ITMP :

_SB_.PCI0.LPCB.H8EC.MTMP :

_SB_.PCI0.LPCB.H8EC.STMP :

_SB_.PCI0.LPCB.H8EC.PFAN :

------[ Asus ATK0110 ]------

Motherboard ID: P7P55D

ICPU/VCPU/PCPU: 725 / 0 / 26880

CPU Temperature : 42.0 C

MB Temperature : 36.0 C

CHASSIS1 FAN Speed: 0 RPM

CHASSIS2 FAN Speed: 0 RPM

CPU FAN Speed : 11637 RPM

POWER FAN Speed : 0 RPM

+12 Voltage : 12.096 V

+3.3 Voltage : 3.392 V

+5 Voltage : 5.136 V

Vcore Voltage : 0.872 V

CPU Temperature : 42.0 C

MB Temperature : 36.0 C

Chassis1 Fan Speed: 0 RPM

Chassis2 Fan Speed: 0 RPM

CPU Fan Speed : 2836 RPM

Power Fan Speed : 0 RPM

+12V Voltage : 12.096 V

+3.3V Voltage : 3.392 V

+5V Voltage : 5.136 V

Vcore Voltage : 0.872 V

CPU PLL : 1.800 V

CPU Voltage : 1.25000 V

DRAM Bus Voltage : 1.560 V

IMC Voltage : 1.100 V

PCH : 1.0625 V

CHA DATA : 0.500 X

CHB DATA : 0.500 X

BCLK Frequency : 133.00 MHz

DRAM Frequency : 1866 MHz

CPU rated ratio : 21x

CPU Ratio : 21x

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Upgraded to latest beta version 1734 and I can see that my motherboard's temp reading's normal. I think this version has fixed it. Thank you for being patient with me along with the fix. Appreciate it. If possible, given the time, could you please in plain simple English post a very simple summary of what caused the misinterpretation of the Mboard reading? Thank you again for the help.

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On most motherboards (including most Asus boards) the motherboard temperature equals to the internal temperature reading of the sensor chip that is integrated on the motherboard PCB. On your motherboard however the sensor chip reads the motherboard temperature from a special register that is only used on a handful of Asus motherboards to measure temperature. So we simply had to modify the motherboard-specific sensor code for your motherboard to switch from the usual register to the special register :)

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