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Q9450 High Temps!

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May 5, 2008 2:53:28 PM

Hello,

The other day I finally finished my first build. The feeling that I gat when I pressed that power button and heard the post beep and then the screen came to life that was priceless! :D 

Yesterday I spend the entire day trying to fix my core temps. Apparently cores 2-3 are about 13c higher then cores 1-2. I have a lapped HS (Ultima 90); I tried reseating it 3 times with no luck. I then tried the stock Intel fan, the difference was still the same. I finally grew inpatient and decided to lap the IHS of the CPU, but that didn’t help ether… The specs are in my sig & here are my final, idle temps.

RealTemp 2.5
Core 1-2 = 25c
Core 3-4 = 37c

CoreTemp 0.98.1
Core 1-2 = 34c
Core 3-4 = 47c

What program should I trust more RealTemp or CoreTemp? What cores do u think are giving the correct temperatures? 1-2? or 3-4? I assume the problem is with the faulty heat sensor; obviously now that I lapped the HIS I cant RMA the thing. What do u guys suggest I do to fix this?

Thanks

More about : q9450 high temps

a b à CPUs
May 5, 2008 3:14:35 PM

Zer0Cool, trust Real Temp. Before I can help you calibrate your temperatures...

(1) Did you try the "Test Sensors" button in Real Temp?

(2) What is your ambient temp?

(3) What are your Prime95 Small FFT's load temps?

(4) What is your CPU temp from SpeedFan 4.34 or Hardware Monitor 1.08?


Comp :sol: 
May 5, 2008 3:22:48 PM

CompuTronix said:
Zer0Cool, trust Real Temp. Before I can help you calibrate your temperatures...

(1) Did you try the "Test Sensors" button in Real Temp?

(2) What is your ambient temp?

(3) What are your Prime95 Small FFT's load temps?

(4) What is your CPU temp from SpeedFan 4.34 or Hardware Monitor 1.08?


Comp :sol: 


Thats all good questions :D 

1st. I did the "Test Sensors" on the RealTemp all cores were 7

2nd Dont know, but i will find out

3rd I think the heat went up 10c for all cores after running prime for 1h (I will doble check)

4th Dont have this programs, I will download them, when I get home

I will keep u updated ASAP, plz help me get thru this :D 

Thanks

May 5, 2008 3:44:51 PM

Atleast now that I know that there is a solution I feel MUCH better :D  Thank you again. I will get back to u with the temps later on 2 night.
a b à CPUs
May 5, 2008 3:48:38 PM

If you have some time before this evening, give the Temp Guide a read so you can familiarize yourself with how we're going to proceed.
May 5, 2008 4:16:27 PM

Comp. I know you know this but that's a very nice guide you put together.
May 5, 2008 8:17:29 PM

Hello, I recently put together a system around a C2Q Q9450 myself and It seems like just sitting in windows (idle) the temps are quite high as well. I'm not in front of it, but I believe coretemp was reporting around 47c while doing nothing and around 60c under 100% load with Prime95 running 4 threads.

I'm at work currently and leaving prime95 running to test for stability issues (only had the box up for 2 days or so). Anyhow I saw this thread and CompuTronix seems to enjoy this whole heat discussion, so I figured i'd add myself to the slabbering masses asking about their Temps.

I have to admit I don't understand everything in the temperature guide with the 8 million different temperatures. Pretty much, I can load an application and give you the numbers it gives me. I'm interested in following Zer0Cool's progress to see if any of it applies to my situation as well.
May 5, 2008 10:07:02 PM

The messed up temps are because, for one, Core Temp reports the TjMax (temp at which the processor will throttle back) for the Q9450 as 105C...when it's closer to 85-95C (noone knows for sure, Intel keeps it a secret)...anyways...that's at least 10C right there.

Use RealTemp which, in the same scenario would report your Temps at a more-likely-accurate 37C due to it's 95C value for TjMax. It wouldn't serve you well for me to parrot what's already been written so take a look at this as well: http://www.xtremesystems.org/forums/showthread.php?p=28...
a b à CPUs
May 5, 2008 11:04:55 PM

halcyon said:
Comp. I know you know this but that's a very nice guide you put together.


Thanks, I'm glad you think so. Some hit-and-run critics feel the Guide is too detailed, but thanks to Intel's ongoing reluctance to release Tjunction Max values, Core 2 temperatures remain unnecessarily complicated. With 101 variables, it's difficult to write a one-size-fits-all Guide that's sufficiently informative, yet simplified enough for everyone to understand. So after 15 months, the Guide is still a work in progress, as I'm continually striving to clarify the contents and streamline the calibrations.

Comp :sol: 
May 6, 2008 12:51:52 AM

Well i'm finally home.

My ambient temp in my room is 20c

Prime 95 8 Tests of 2560k FFt Length my tems are;

SpeedFan 4.34
Core 1-2 = 37c
Core 2-3 = 47c

RealTemp 2.5
Core 1-2 = 32
Core 2-3 = 41

Real Temp Sensor was 7 TOP's from 4-7 for all 4 cores

I honestly didnt have mcuh time to take a look at the guide, from what i saw was a bit confuzig for me, but il take a look again.

CompuTronix if u can guide me thrue the process It would mean the world to me!
a b à CPUs
May 6, 2008 12:58:20 AM

What does SpeedFan show for CPU temperature?
May 6, 2008 1:10:30 AM

Is it ACPI? if yes then its 17 idle. I thought the Core temps is the cpu temp?


a b à CPUs
May 6, 2008 1:18:29 AM

OK...we'll start with the basics. Since I type quite slowly, please read Sections 1 & 4 only in the Guide, so I don't have to reiterate the information.
May 6, 2008 1:37:42 AM

Ambient = 20c
Chipset = (I guess P35) is that what u asking?
C2Q / C2D = C2Q Q9450
CPU Cooler = Ultima 90
Frequency = 2.66Ghz
Load = (Test Program) Prime 95 ?
Motherboard = DFI P35 LP UT
Stepping = 7
Vcore = 1.152V


So my Tcase is 17 right? Speed fan identified it as ACPI right? or is it something else...If yes how can I find out what my Tcase is.

Do u need any more info from me?
a b à CPUs
May 6, 2008 1:42:06 AM

To identify Tcase, please read Section 8, Note 2 only.
a b à CPUs
May 6, 2008 1:58:05 AM

Thanks for the images. Again, to identify Tcase, please read Section 8, Note 2 only. Follow the information shown in the bullet.
May 6, 2008 1:58:46 AM

I will do the test now 1 sec, i didnt read the rest of note 2 sorry :D 

small fft is the very first test right?
a b à CPUs
May 6, 2008 2:01:19 AM

That's the only test we're interested in at the moment.
May 6, 2008 2:03:35 AM

Temp 1 on the pic is my Tscale. Load is 22 Idle is 17

No flame icon, :D 
May 6, 2008 2:18:41 AM

Here is a summary for my temps/test (the old IDLE core temps are off plz use this once, I didnt have the case cover b4. I have a 200mm fan on the side cover of my Cosmos S Case) I'm sorry. The load temps are the same tho.

Idle

Tscale = 17c
Core 0-2 =30c
Core 3-4 = 42c

Load

Tscale = 22c -25c
Core 0-2 = 37c
Core 3-4 = 47c

(also note plz Core 2 has a flame next to it from timne 2 time not often)
a b à CPUs
May 6, 2008 2:39:53 AM

Go into "Configure", click on "Advanced", then click on the arrow to the right of the "Chip" field. Look for a line that reads something similar to "Windbond 83627DHG at $290 on ISA" and click on it. Scroll down to a line that shows "Temperature 1 Offset" and click on it. At the bottom left side in this window, you'll see "Set to". Click on the arrow on the right side of the window and change the value from "0" to "6" then click on "remember it", and finally click "OK"

Congratulations, you just calibrated Tcase, or CPU temperature, which should now read 23c. OK so far?
May 6, 2008 2:59:23 AM

Yes sir, Im with u

My line had "IT8718F at $290 on ISA" i hope it was the right one

My Tcase is now 23c +/- 1c
a b à CPUs
May 6, 2008 3:05:01 AM

Correct. Next, start CPU-Z and Prime95 Small FFT's, then let them continue to run. After 10 minutes please report the temperatures for the CPU (Temp 1) and all 4 cores. I'll be standing by.
May 6, 2008 3:12:43 AM

I think i kind of asked u this alredy, but i just want to be sure. Small FFT is just the very first P95 test right? Juct clikc start, wait 10 and record right?
a b à CPUs
May 6, 2008 3:18:53 AM

When you start Prime95, it should open to "Run a Torture Test" where you will see the first item which clearly says "Small FFT's..."
May 6, 2008 3:24:02 AM

O snap! I was doing the wrong thing. I feel like a totall moran now. i will very quicky redo the 1st steps that we did, and record the temps. The calibrations u told me to do i will set to default. Be right back 3 minutes

EDIT

the temps look the same...only they jump a bit more higher...but average is the same. I will go ahead and do the 10 min test now
May 6, 2008 3:34:56 AM

When I stop CPU Z my Multyplayer dropes to 6...I think I know how to fix it

Under "CPU features" disable EIST and C1E. That will keep it from dropping the multi to 6.

brb restarting

If its 2 late for u, plz let me know we can continue tomorow :)  brb
a b à CPUs
May 6, 2008 3:38:08 AM

Don't change it. You're running automatic settings, which is exactyly what we want. Please follow along in the Guide, and you'll see that all of this is explained in the Calibrations Section.
May 6, 2008 3:39:43 AM

ops, I really should of read the guide. brb chaning it back to stock

EDIT

Runing 10 min test now

Wile im waiting, why do I need CPU-Z for this test? am I supposed to get some info from it?
May 6, 2008 4:02:01 AM

After 10 min of small FFT's

SpeedFan

Temp 1 = 28c

0-1 = 37c
2-3 = 47

Varience of +/- 3c for all 3

(Dont know why I neede cpu-z)
a b à CPUs
May 6, 2008 4:05:56 AM

Is it still running?
May 6, 2008 4:06:40 AM

No, did I mess something up? :)  Should I start it back up?

I started it back up, Im getting the feeling I shoudnt have stoped it...


EDIT


The load temps are back up. What shoud I do next?
a b à CPUs
May 6, 2008 4:34:32 AM

With Prime 95 still running, we will calibrate Tjunction (Core temperatures), then we'll re-test Idle.

As before, go into "Configure", click on "Advanced", then click on the arrow to the right of the "Chip" field. Look for a line that reads "INTEL CORE at $0 on ISA" and click on it. Youwill see "Temperature 1 offset" thru "Temperature 4 offset". Click on these one at a time, then at the bottom left side in this window, you'll again see "Set to". Click on the arrow on the right side of the window and change the values from "0" to "-6", "-6", "-10" and "-10", then click on "remember it" for each value, and finally click "OK"

Congratulations, you just calibrated Tjunction, or Core temperatures, which should be approximately as follows:

Idle
CPU = 23c
Core 0 = 25c
Core 1 = 25c
Core 2 = 29c
Core 3 = 29c

Load
CPU = 28c
Core 0 = 31c
Core 1 = 31c
Core 2 = 35c
Core 3 = 35c

OK so far?
May 6, 2008 4:44:33 AM

Yes I'm with u.
a b à CPUs
May 6, 2008 4:47:59 AM

Please re-test Idle and Load, then post your results, so we can fine-tune if necessary.
May 6, 2008 4:57:32 AM

Idle:

CPU = 22-24c (23c)
Cores 0-1 = 23-25c (24c)
Cores 2-3 = 31-33c (32c)

I am doing Stress Now, plz give me few minutes I will update this post

UPDATE

Load:

CPU: = 27-31c (29c)
Cores 0-1 = 28-34c (31c)
Cores 2-3 = 34-40c (37c)

I'm still runing the stress test, shoud I stop?
a b à CPUs
May 6, 2008 5:26:53 AM

Let Prime95 run and adjust your Core offsets to -5, -5, -11 and -11, and post your updated Load results. Then let it Idle and post your updated Idle results.
May 6, 2008 5:51:40 AM

Load:

CPU = 28-31
Core 0 = 29-35c
Core 1 = 30-35c
Core 2 = 34-39c
Core 3 = 34-38c

Idle:

CPU = 23-24c
Core 0 = 24-25c
Core 1 = 25-26c
Core 2 = 32-33c
Core 3 = 30-31c

lol my eyes are starting to heart from staring at the screen tryint to get the varience for the cores
a b à CPUs
May 6, 2008 6:05:12 AM

Zer0Cool, congratulations! You've succesfully calibrated your new rig! Mission accomplished, and well done! You're cleared to overclock. Just remember not to exceed 1.4 Vcore at Load.

Comp :sol: 
May 6, 2008 6:22:06 AM

CompuTronix said:
Zer0Cool, congratulations! You've succesfully calibrated your new rig! Mission accomplished, and well done! You're cleared to overclock. Just remember not to exceed 1.4 Vcore at Load.

Comp :sol: 



NICE!

Thank you very much Sir!

I trully appreciate ur help here! the world needs more people like u :D 

Thanks again.
a b à CPUs
May 6, 2008 6:34:54 AM

You're quite welcome. Enjoy your rig!

Comp :sol: 
a b à CPUs
May 6, 2008 10:07:53 PM

Nice work Comp. We now have 1 more person who knows his/her correct CPU temperatures (at least the closest possible).
May 12, 2008 11:24:58 AM

hey zer0cool. hi. i just got a q9450, and my cores 2 & 3 are 10-13C higher than cores 1 & 4. the chip runs ok, and it seems u r being instructed to just adjust your sensors in speedfan (i tried the -5,-5,-11,-11 that u were told) and it looks cool after to adjust the sensors. pls, one question i have 4 u, if your 2 cores are warm, or running a bit high, are u still gonna keep your q9450? cuz i could rma mine, but it seems from your thread here, that it's ok if your dts sensors report a bit poorly, so are u gonna keep your chip? like, there's really nothing wrong w/ your q9450, even if 2 cores report 10-13C higher? kindly say, see ya.
May 13, 2008 11:06:28 AM

Hello,

Sorry to pop up like this after so long time. I have a Pc with q9450 proc I am measured the temp with several programs. One set is showing 5 degrees more than the other. for example Everest reports 5 degrees more than Coretemp, or Speedfan. Which one is showing the right temperature?

PL
a b à CPUs
May 13, 2008 11:15:19 AM

^Go with CoreTemp readings. Also try RealTemp and caliberate SpeedFan.
a b à CPUs
May 13, 2008 5:40:08 PM

Sorry Shadow, but I can't agree. Core Temp has been proven inaccurate with 7000, 8000 and 9000 series processors as being 10c too high. My first recommendation for intermediate to advanced enthusiasts is to use the Temp Guide to Calibrate SpeedFan. My second recommendation is to user Real Temp. In good conscience, I can't recommend Core Temp to anyone.

Comp :sol: 
a b à CPUs
May 14, 2008 1:32:50 AM

^That's what I thought so too. So RealTemp in more accurate than CoreTemp right? The CoreTemp problem doesn't affect the E2x00,E6x00,etc right?
Anonymous
a b à CPUs
May 27, 2008 4:32:05 PM

So my load temps from 8 hours of prime 95 are as follows with stock settings Q9450 at 2.66ghz, are 70, 58, 60, 61 in real temp...

I had NCIX build this system and I bought some arctic silver compound but they didn't use any of it... I'm going to re-seat the heat sink with arctic silver and hope it improves (TRUE 120 with a 2000rpm scythe ultra kaze).

Any ideas why they are so high?
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