Need a temp/voltage monitor service...also, how accurate are the readings?

lektrix

Golden Member
Aug 9, 2003
1,174
0
76
SpeedFan, Coretemp, all don't load up as a service and require you to start up the program manually...I am too lazy to click on the program every time and I'm too cheap to buy a Scythe Kama Meter bay...are there any programs out there that can run as service to show me my CPU/NB/Case/HDD/GPU temps and voltages? I can only think of one, and that's MBM5, but it hasn't been updated in 3 or 4 years and I don't think it can detect C2Ds properly.

Another related question. How accurate are these temperature readings? Would you trust them over bios, or are they exactly the same as bios? More importantly, how accurate are the voltage readings? I know for a fact I'm on stock 1.35V on my e6420 on my Gigabyte DS3L, yet SpeedFan and CPU-Z (both latest editions) tell me my CPU voltage is only 1.31V on idle, and 1.28V on full load!

 

kentsfield

Member
Sep 7, 2007
102
0
0
Put a speedfan shortcut in your start menu folder and it will load up at startup. I even use an informer (yahoo widget) to paste the sensor from speedfan in and looks pretty nice. Here is a Pic
 

kentsfield

Member
Sep 7, 2007
102
0
0
I don`t know how accurate readings are for C2D, but speedfan has in my case (Q6600) a delta of 10 C minus. So i just use the cpu temp and add +10C, for everyday use. When i stress test i use coretemp (i think its the most accurate) it shows the Tjunction temperature (real core temp.). Cpu temperature from speedfan (bios reading) is Tcase temp. measured from IHS, its 10-15C lower than coretemp (this is the temp. that intel states for max. In my case that is 62C (Tcase).

It is normal that your Vcore drops and a bit in full load. Cpu-z is ok for keeping an eye on the Vcore, but i really don`t trust the software for voltage readings so i just use a multimeter to measure my +12V, +3.3V, +5V. Example: everest and speedfan shows a (+12V) 11.6V (load), but with multimeter i got 12.04V.
 

lektrix

Golden Member
Aug 9, 2003
1,174
0
76
Originally posted by: kentsfield
I don`t know how accurate readings are for C2D, but speedfan has in my case (Q6600) a delta of 10 C minus. So i just use the cpu temp and add +10C, for everyday use. When i stress test i use coretemp (i think its the most accurate) it shows the Tjunction temperature (real core temp.). Cpu temperature from speedfan (bios reading) is Tcase temp. measured from IHS, its 10-15C lower than coretemp (this is the temp. that intel states for max. In my case that is 62C (Tcase).

It is normal that your Vcore drops and a bit in full load. Cpu-z is ok for keeping an eye on the Vcore, but i really don`t trust the software for voltage readings so i just use a multimeter to measure my +12V, +3.3V, +5V. Example: everest and speedfan shows a (+12V) 11.6V (load), but with multimeter i got 12.04V.

the minus 10-15C only applies to quad cores.....
 

wgoldfarb

Senior member
Aug 26, 2006
239
0
0
Originally posted by: lektrixSpeedFan, Coretemp, all don't load up as a service and require you to start up the program manually...I am too lazy to click on the program every time and I'm too cheap to buy a Scythe Kama Meter bay...are there any programs out there that can run as service to show me my CPU/NB/Case/HDD/GPU temps and voltages?

You can perhaps try THIS to run any of any application as a service under Windows 2000/NT/XP. I have used it before, but I don't know if it will work with any application. You need to edit the registry, so make sure you know what you are doing! :)

 

AAjax

Diamond Member
Feb 17, 2001
3,798
0
0
Speedfan seems relatively accurate, but was curious if anyone had any input on whats best specifically for core duo cpu's? (if it makes any difference)
 

myocardia

Diamond Member
Jun 21, 2003
9,291
30
91
Originally posted by: lektrix
the minus 10-15C only applies to quad cores.....

Actually, it applies to all G0 steppings, including the G0 stepping Q6600 & Q6700, along with all of the x6x50's, including all of the E6x50 dual-cores.

edit: And you're right, there's a 15C difference, not 10C difference.
 

mjavid

Member
Aug 20, 2007
85
0
0
I have started using the freeware program PC Wizard 2008 from the CPU-Z maker. It gives temps of each of the cores, GPU temp and voltages, load on each core in real time. If you shrink the program, these display as a transparent overlay on the top right corner (I altered the default text color to red).

I have compared the readings with the Intel TAT and they seem to co-incide for the most bit.

If I use Core Temp and the PATA controller is enabled, I get a system crash on my IP35Pro, so I dont use it routinely.

M Javid
 

graysky

Senior member
Mar 8, 2007
796
1
81
Right the delta is 15 °C, nothing else. It comes from the software incorrectly using a constant of 85 instead of 100 in the calculation:

Core temp = C - DTS
Where C is the constant, and DTS is the raw data from your digital thermal sensor.

You can read this thread paying attention to uncleweb's instructions to use crystalcpuid to directly read your DTS (digital temperature sensor) and calculate your core temp yourself if you don't believe me.