Real Temp - New temp program for Intel Core processors

[zillaoc]

You cool it with frozen water? You live into an igloo?

The entire rig minus the hd's and pump is inside this thing. That is a old ss though. Its been modded a ton since...
http://www.xtremesystems.org/forums/...50#post2898350

[burebista]

Hehe, I wasn't too far in my assumption.

[jcool]

Hey unclewebb,

thought I'd check back in here to see how you are doing
Sorry I haven't been giving any feedback lately, I remember when you made RealtempGT just for me back in Autumn 09

I have been using an old 3,30 Beta ever since, and it worked fine. Now I do have a few new chips, so I thought I'd update and see what has changed.

Does the attached screen look right to you? I kinow sensors 4 and 5 are kinda broken, but I think the rest is spot-on. Running fully-loaded on chilled water (14-17C water).

As always, thanks for the great program!

[unclewebb]

My best guess is that TJMax is not consistent across all of your cores. With the cores numbered from Core 0 to Core 5, I'd bump up TJMax on Core 3 by about 10C or 11C and I'd bump Core 4 by about 6C. That should make all 6 of them line up pretty good. They might even be more accurate too.

Prime95 Small FFTs is still the best program for equally loading each core. When you do that, most of the difference you see from one core to the next is error in how Intel sets TJMax.

A TJ target number is written into each core so in theory Intel could use a unique TJ Max value for each core but they don't bother. They just write a consistent value into all 6 cores even though actual TJMax varies a little from one core to the next.

I'll try to get RealTemp GT updated someday in the near future with better CPU name recognition and some of the newer GPU code but other than that, it looks like it still works.

[jcool]

My best guess is that TJMax is not consistent across all of your cores. With the cores numbered from Core 0 to Core 5, I'd bump up TJMax on Core 3 by about 10C or 11C and I'd bump Core 4 by about 6C. That should make all 6 of them line up pretty good. They might even be more accurate too.

Prime95 Small FFTs is still the best program for equally loading each core. When you do that, most of the difference you see from one core to the next is error in how Intel sets TJMax.

A TJ target number is written into each core so in theory Intel could use a unique TJ Max value for each core but they don't bother. They just write a consistent value into all 6 cores even though actual TJMax varies a little from one core to the next.

I'll try to get RealTemp GT updated someday in the near future with better CPU name recognition and some of the newer GPU code but other than that, it looks like it still works.

Unclewebb,

thank you for your suggestions, but too late - I already swapped the CPU for the other X5680 (it's a pair, waiting on the DP evga board)
This CPU is way better, but two sensors are also off the mark - different ones this time.
In this shot I am running prime SmallFFT, and your latest RealTemp version. Also, I set TJmax manually to 105C because Dave said that's what he got as a number from Intel.

So, what should I adjust here, if anything?

Thanks

[unclewebb]

TJMax is written into each core by Intel so I'd trust that as a starting point. Hitting the Defaults button in the RealTemp Settings window should reset it to the default TJMax. RealTemp reads that value OK.

The slope error in these new sensors is much greater than the slope error in the 45nm Core i7 series. You would need to get your core temperature up to about 70C before slope error becomes a non issue. Most of the difference from core to core at that point is error in TJMax.

The easy thing to do is to run Small FFTs until the temps stabilize and then add on a few degrees to the center cores until the temps across all 6 cores are fairly well balanced. It will make things look nice if nothing else.

It's too bad that Intel has taken a step backward with these latest sensors. With 6 cores and 12 threads at 4.5GHz+, there probably won't be too many complaints.

[Movieman]

TJMax is written into each core by Intel so I'd trust that as a starting point. Hitting the Defaults button in the RealTemp Settings window should reset it to the default TJMax. RealTemp reads that value OK.

The slope error in these new sensors is much greater than the slope error in the 45nm Core i7 series. You would need to get your core temperature up to about 70C before slope error becomes a non issue. Most of the difference from core to core at that point is error in TJMax.

The easy thing to do is to run Small FFTs until the temps stabilize and then add on a few degrees to the center cores until the temps across all 6 cores are fairly well balanced. It will make things look nice if nothing else.

It's too bad that Intel has taken a step backward with these latest sensors. With 6 cores and 12 threads at 4.5GHz+, there probably won't be too many complaints.

Hello Uncle( Jeez that sounds strange!
Running RealTemp GT 3.40 on my dual Westmere SR2 rig and defaults show a TMax of 101C.. I thought it was 105C..
Now how do I monitor all 12 cores as the app just shows 6 ?
Am I a clueless n00b?
Thanks for a great app.

[donmarkoni]

Hello Uncle( Jeez that sounds strange!
Running RealTemp GT 3.40 on my dual Westmere SR2 rig and defaults show a TMax of 101C.. I thought it was 105C..
Now how do I monitor all 12 cores as the app just shows 6 ?
Am I a clueless n00b?
Thanks for a great app.

If I may... Try this http://www.xtremesystems.org/forums/...trail&page=105 until unclewebb answers you. It is meant for skulltrail, but it might work.

[jcool]

Err.. I discussed that very issue with unclewebb some time ago. We got it to work by copying the realtemp folder, changing a setting in each folder's config file (something like "CPU=0" for one and "CPU=1" for the other IIRC).
So you basically start up two instances of RealtempGT, with one displaying CPU 0 and the other CPU 1.

[Monstru]

What's up doc?

[Sam_oslo]

I'm using Real Temp GT3.40 with X5650, and the TJ Max is 96 by default. Do I have to change this? I hope not, I'm very happy with the low temp.

[unclewebb]

Monstru: The Atoms don't use the same high performance timers that other Intel CPUs use. Try adding MSRMulti=1 to the RealTemp.ini file and it might show you a multiplier using the old method and report your correct MHz.

The load meter probably doesn't work either. You can check off TM Load in the Settings window and it will try to use a load meter based on the task manager load meter. Same problem as above. No high performance timers in these CPUs.

I just checked the Intel docs and it says the D510 has a thermal spec of 100C so you would need to change that in the Settings window too. Your temps might be a little closer to reality but probably still a little out to lunch unless you've moved way up North. I'll blame that on crappy sensors.

Can you tell I'm not a netbook fan and I have absolutely no love for the Atom line of CPUs?

Sam_oslo: RealTemp is reading the 96 value from the CPU but there's no guarantee that it is 100% accurate. Intel calls the number within the CPU that RealTemp reads a TJ Target number and actual TJ Max may be higher. They've never said how much higher so actual TJMax might be 100 or 105 like many other Intel CPUs. By writing information into the TJ Target register, Intel is in complete control of what your CPU reports for temperatures. If they write a low ball TJ Target number in that register then all software will report that you have a cool running CPU.

My apologies to the 12 core Westmere guys. Send me some hardware and I'll get to work on a 12 core version of RealTemp GT.

[Monstru]

Yes boss, but this is not a notebook, and this is a dual-core Atom with hyper-threading (hooray)

[unclewebb]

RealTemp 3.58.2
http://www.fileden.com/files/2008/3/...alTempBeta.zip

It might not be a netbook but I still don't like it.
I'd rather have a Core 2 Duo and if I wanted to have a low power C2D, I'd just under volt and under clock it, preferably using my new ThrottleStop tool.

I gave RealTemp a tweak or two to try and better support the Atom family.

What's your room temperature? I'm curious to see how far out your core temperature is even with the Intel specified TJ value. At idle in an open case I think the actual peak core temperature should still be about 5C over the air temperature.

[Monstru]

25 oC room ambient, the sensors are way off. I'll try the new RT version and report at the beginning of the next week, I will be away for a few days.

Regarding C2D vs Atom, well, C2D has huge performance compared to this little guy, but you have to give it to the little guy... only 50W drawn from the wall in full load, for the whole system. It doesn't get much "greener" then that

[stasio]

RealTemp 3.58.3.....(?)
http://www.fileden.com/files/2008/3/...alTempBeta.zip

[unclewebb]

3.58.3 contains a tiny fix to support Xeon Dual Core CPUs when you are running two of these on the same board.

The Skull=3 INI option handles this combo.

[vodka3dg]

thx! 3.58.3 works grate

the only thing that RealTemp is missing, imho, is a feature that allows one to see max temperature between all cores displayed in a single tray icon; adding this would simplify day to day use of this app

my 2 cents: safe stress-testing with RealTemp

@echo off
taskkill /F /IM prime95.exe
taskkill /F /IM linpack_xeon64.exe
taskkill /F /IM linpack_xeon32.exe
taskkill /F /IM linx.exe
echo %date% %time%
echo PROCESSOR HIT 85c! STRESSTEST STOPPED..
pause

i use this simple code in a .bat file to stop active stress-testing if it exceeds my criteria for maximum cpu allowable temps.

note that you may be using other stress-testing software: for that matter, just copy the name, of the process that consumes 100% of CPU resources in your windows task manager, to the "taskkill /F /IM" line: you will be able to stop it when it reaches the alarm temperature set in RT.

to make this work you just need to:
1) copy the above code to a .txt file (create it in the RealTemp folder for easier handling) and rename it with a .bat extension.
2) open RealTemp, click on settings, then tick the "Alarm Temperatures" check box.
3) set the maximum allowable temperature that matches your criteria for safe stress-testing.
4) Click on the "Alarm EXE" button and in the "Open File to Run on Alarm" box change "Files of type:" to "BAT Files (*.bat)".
5) If you put the file in the RealTemp directory u will have to hit the F5 key to refresh, and then select the script you created in step 1.

test it before you run a real stress test: just set a lower temperature in the "CPU" "Alarm Temperatures" section

hope you find this helpful, i made this for myself, which is why i don't intend to get credit for this; just trying to be helpful to RT and the community.

[mejobloggs]

What are the different exes for? RealTemp.exe, RealTempGT.exe, i7Turbo.exe... Can't find anything explaining what they do

[unclewebb]

You could always do something wild and crazy like try to run them and see what happens.

RealTemp GT is a separate version of RealTemp for the new 6 core Gulftown processors. It was the fastest way for me to create something for the 6 core guys.

RealTemp.exe is the main one for everyone else.

i7 Turbo is a separate program I wrote to give you a very accurate look at what each thread in your CPU is really up to. It's the most accurate tool to check for things like turbo throttling and can spot a problem before any other software will tell you about it. There is a separate thread for i7 Turbo somewhere on XS but I haven't been there recently.

http://www.xtremesystems.org/forums/...d.php?t=225450

vodka3dg: Excellent suggestion.

[mejobloggs]

lol yeah but GT and non-GT looked pretty much the same so I was like ?? and i7Turbe wasn't reporting any Min/Max values so was wondering if I actually need an i7 for it (have i5 750)

[Russ_64]

Hey Uncle, thanks for keeping this great util going

I have the parts for my new Gainestown dual Xeon in transit, will the standard version handle all 8/16 cores?
I will let you know how it works in a few weeks time!

[unclewebb]

i7 Turbo should work fine on most Core 2 Duos and the newer Core i7/i5/i3. When info doesn't show up in the Min/Max boxes it is because you have the Load Filter set too high. Set that to 0% and all info should show up immediately in the Min/Max boxes.

For Dual Quad Core systems, you should be able to use the RealTemp.ini options CPU=1 and CPU=2 to read each CPU. You will have to set up two separate RealTemp folders for this to work.

I need to add a similar option to RealTemp GT so the Gulftown guys can read both of their CPUs. Maybe someday.

[Movieman]

i7 Turbo should work fine on most Core 2 Duos and the newer Core i7/i5/i3. When info doesn't show up in the Min/Max boxes it is because you have the Load Filter set too high. Set that to 0% and all info should show up immediately in the Min/Max boxes.

For Dual Quad Core systems, you should be able to use the RealTemp.ini options CPU=1 and CPU=2 to read each CPU. You will have to set up two separate RealTemp folders for this to work.

I need to add a similar option to RealTemp GT so the Gulftown guys can read both of their CPUs. Maybe someday.

BANNED until accomplised..
I think in the next month your going to see a lot of dual 6 core SR2 machines here my friend..

[St4vr0s]

Any idea when the AMD Hex Cores will be supported?
RealTemp Beta 3.58.3 will not run using a 1090T in a Crosshair 4 890 FX Chipset.