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Q9550 Temps

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  • CPUs
  • Cooling
  • Overclocking
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January 23, 2009 7:15:21 AM

Was wondering how these temperatures look for an OC'D Q9550. I have it OC'd to 3.6ghz. I'm going to sit down and tweak the voltages, I currently have CPU Core set to 1.250v...1.225 was unstable, so somewhere inbetween hopefully.

CPU - 40-43c Idle, 50-56c during gameplay
Cores - 48-50 idle, 55-61 during gameplay

I'm running a Zalman 9500 cooler. Mobo is a EVGA 750i FTW, PC Power & Cooling 750w PSU.

More about : q9550 temps

a b à CPUs
a b K Overclocking
January 23, 2009 7:23:50 AM

Vashek,

Gameplay is not recognized as a thermal benchmark. Measure your ambient temperature, run Prime95 Small FFT's for 10 minutes with case covers removed and all fans at 100% RPM, then list your results.

Comp :sol: 
January 23, 2009 5:38:22 PM

Ok, so here's what I've got. Since I'm fairly new to OC'ing I dropped it down to 3.5ghz, and ran 2 Primer tests both stable for full 15+ minutes. (small FFT, and Blend) with side panels off like you recommended. At 3.6ghz I had it stable with Blend, but not small FFT, and decided I may be pushing it.

I ran 2 tests, one with no box fan in the room, and one with it on. (as my room has a tendency to be hottest in house because afternoon sun hits this room the longest.)

With the fan on in the room the system was cooler by about 4-5 degrees all around, so here's my temps with no box fan.

Small FFT's Test
CPU - 63c-65c
Core 1 - 69c
Core 2 - 65c
Core 3 - 65c
Core 4 - 65c

At idle CPU is at 41c and Cores about 45c
a b à CPUs
a b K Overclocking
January 23, 2009 6:26:37 PM

What is your ambient?
January 23, 2009 8:59:03 PM

vashek said:

Small FFT's Test
CPU - 63c-65c
Core 1 - 69c
Core 2 - 65c
Core 3 - 65c
Core 4 - 65c


If you run Prime for an entire hour I promise your going to jump into the 70’s if you hit 65 in the first 15 mins. Try running Prime longer and watch the temps… just 1 hour, you’ll see.

In my opinion this is to hot…however you are still in the safe zone until 70. Try running @ 3.3 GHZ with a lower Voltage if you do jump over 70.
a b à CPUs
a b K Overclocking
January 24, 2009 8:27:43 AM

grieve said:
If you run Prime for an entire hour I promise your going to jump into the 70’s if you hit 65 in the first 15 mins. Try running Prime longer and watch the temps… just 1 hour, you’ll see.
grieve,

I can understand how some users might find that misleading. Allow me to clarify:

Pime95 Blend is a fluctuating workload, which is an excellent tool for memory stability testing. Blend will cause CPU and Core temperatures to vary throughout the duration of the test.

Prime95 Blend as displayed in SpeedFan Charts:



As you've suggested, Blend begins at less than 100% workload, however, after approximately 20 minutes (not 1 hour), Blend increases the workload to peak at 100%. Unlike Blend, Small FFT's is a steady-state 100% workload, which is the accepted standard for thermal benchmarking and stability testing.

Prime95 Small FFT's as displayed in SpeedFan Charts:



Small FFT's will cause the processor, socket and heat sinc to reach saturation within 7 to 8 minutes, so a 10 minute test is adequate to find maximum CPU and Core temperatures. As such, Vashek has already found his maximum CPU and Core temperatures.


From the Core 2 Quad and Duo Temperature Guide - http://www.tomshardware.com/forum/221745-29-core-quad-t...


"Section 9: Calibrations...

Part 2: Calibration - Tjunction Load

(A) Start Prime95 Small FFT's... Observe SpeedFan. Thermal saturation is typically reached within 7 to 8 minutes, so allow 10 minutes to assure that temperatures increase to maximums..."


Additionally, the Thermal Specification shown in Intel's Processor Spec Finder - http://processorfinder.intel.com/details.aspx?sSpec=SLB... - is CPU temperature, not Core temperatures, which is a very common misconception among many users.

From the Guide:


"Section 6: Scale...

Scale 2: Quad
Q9x50: Tcase Max 71c, Stepping E0, TDP 95W, Idle 16W<--Q9550 E0
Q9x50: Tcase Max 71c, Stepping C1, TDP 95W, Idle 16W<--Q9550 C1
Q9400: Tcase Max 71c, Stepping R0, TDP 95W, Idle 16W
Q9300: Tcase Max 71c, Stepping M1, TDP 95W, Idle 16W
Q8x00: Tcase Max 71c, Stepping R0, TDP 95W, Idle 16W
Q8200: Tcase Max 71c, Stepping M1, TDP 95W, Idle 16W
Q6x00: Tcase Max 71c, Stepping G0, TDP 95W, Idle 16W

-Tcase/Tjunction-
--70--/--75--75--75--75-- Hot
--65--/--70--70--70--70-- Warm
--60--/--65--65--65--65-- Safe
--25--/--30--30--30--30-- Cool..."


Tcase = CPU temperature
Tjunction = Core temperature

Comp :sol: 
a c 172 à CPUs
a c 197 K Overclocking
January 24, 2009 9:58:11 AM

Computronix is right. Prime95 will drive temperatures up to max in about 10 minutes. However, testing for stability will take longer. I have had P95 test runs fail after 14 and 18 hours, so I test for 24 hours.

Right now, I have my Q9550 sitting at a relatively low 3.6 GHz. My temps go to 58 - 61 C. @1.25 volts with a TRUE in an Antec 900 case at 22 - 25 C ambient.
February 23, 2009 11:21:53 PM

vashek said:
Was wondering how these temperatures look for an OC'D Q9550. I have it OC'd to 3.6ghz. I'm going to sit down and tweak the voltages, I currently have CPU Core set to 1.250v...1.225 was unstable, so somewhere inbetween hopefully.

CPU - 40-43c Idle, 50-56c during gameplay
Cores - 48-50 idle, 55-61 during gameplay

I'm running a Zalman 9500 cooler. Mobo is a EVGA 750i FTW, PC Power & Cooling 750w PSU.





The zalman didnt work so well the C2Q's id spend 40$ and get a TT120 or TRUE 120

ALSO MAKE SURE YOUR FSB isn't to high over volting the FSB has the BIGGEST im pack on core temps! Belive it or not its very true :D 
February 23, 2009 11:26:27 PM

Tuniq tower 120 intel burn test stable 10 passes , OOCT 2 Hour runs, Prime 95 24 hours

P35 FTW!!

LOAD: 60 across the board highest peak ;) 
MIN 33 , 31 ,33 33
!