QX6850 Temps

Question

I stress tested my QX6850 on ait the other night and it got up to around 77C on air. Idle temps are typically between 30-40C. Also, my QX6850 is overclocked to 3.67mhz.

Anyone have any insight as to what is too high.

gdwrnch3 - might need your input here.

Thanks again!

ai5u · Answer

77C! Ouch!!! Did your system shut down for protection? QX6850 MAX temp is somewhere around 64C.

What did you use for temp monitoring?

I would check your heat sink placement and TIM (Themial Interface Material) on cpu and heatsink.

gdwrnch3 · Answer

At 3.7, mine ran between 69 and 75 degrees under a stress test on air. Thats pretty normal for the QX6850 on air. The QX6850 will throttle back @ about 100 degrees temp.

Here's Intels specs:

QX6x50: Tcase Max 65c, G0 Stepping, Tjunction Max 100c, Vcore Default 1.372, TDP 130w, Delta 10c
QX6700: Tcase Max 65c, B3 Stepping, Tjunction Max 100c, Vcore Default 1.372, TDP 130w, Delta 10c

-Tcase/Tjunction-
--65--/--75--75--75--75-- Hot
--60--/--70--70--70--70-- Warm
--55--/--65--65--65--65-- Safe
--25--/--35--35--35--35-- Cool

Realistically, you'll never get it as hot as you do stressing it. I have mine running @ 3.4.

I am working on a Coolit liquid system but I haven't been real happy with the fit in the 720 case, but I haven't given up yet

Message Edited by gdwrnch3 on 02-22-2008 06:42 PM

BobT36 · Answer

mine was factory overclocked to about 3.66, when I was testing out WoW I heard a beep from within the case and it froze. After restarting and trying it again I saw the temp was around 70c, and while I don't know much about temperatures I think that was what caused the freeze and seemed a bit hot, so I went into the BIOS and notched it down one to around 3.44 I think it was, after that it was running ok at about 50c, and around 30-40 on idle.

Wow aint the most intensive game either, and I have the H2C version lol. :/

Message Edited by BobT36 on 02-22-2008 09:12 PM

John XPS 700 · Answer

My H2C keeps the QX6850 at 18c at 4GHz. Do I win? :smileywink:   I think my XPS is special lol

kill_dash_nine · Answer

He photoshopped it.  ;)

BobT36 · Answer

Yes.

How the heck do you keep it that low, ya got it outside?

Mine on Idle, just running MSN and this forum in IE:

Mine under stress before I notched it down:

http://img519.imageshack.us/my.php?image=51951562la9.jpg

The only thing I've done is moved it DOWN a notch in the BIOS lol. :/

Message Edited by BobT36 on 02-23-2008 10:40 AM

John XPS 700 · Answer

Ha i take offense to that!, you wish it was photoshopped, I don't even have photoshop LOL

To the poster above...no it wasn't outside but it was in a freezing confined room in the north of England...so yeah lol. It normal conditions it runs about double those temps, I was just seeing how cold I could get the system. Obviously the colder the ambient temperature, the colder the air is and likewise the liquid.

ai5u · Answer

[[[ MAX CASE TEMPERATURE]]]

Core 2 Ex[[[treme
(Conroe)
Socket 775 Core
Voltage Vmax Max.
Core
Amp. Therm[[[al
Design
Power Max.
Cover
Temp. Core 2 Extreme X6800
(dual 2.93GHz - 4MB) 1.2V
(0.85V~1.5V) 1.55V 90A 75W [[[[60.4° C ]]]] Core 2 Extreme
(Kentsfield)
Socket 775 Core[[[
Voltage Vmax Max.
Core
Amp. Thermal
Design
Power Max.
Cover
Temp. Core 2 Quad Q6600
(quad 2.4GHz - 2x4MB - 6-F-B) ?V
(0.85V~1.5V) 1.55V 115A 95W 71° C Core 2 Quad Q6600
(quad 2.4GHz - 2x4MB - 6-F-7) ?V
(0.85V~1.5V) 1.55V 115A 105W 62.2° C Core 2 Quad Q6700
(quad 2.66GHz - 2x4MB) ?V
(0.85V~1.5V) 1.55V 115A 95W 71° C Core 2 Extreme QX6700
(quad 2.66GHz - 2x4MB) ?V
(0.85V~1.5V) 1.55V 125A 130W 64.5° C Core 2 Extreme QX6800
(quad 2.93GHz - 2x4MB) ?V
(0.85V~1.5V) 1.55V 155A 130W 54.8° C Core 2 Extreme QX6800
(quad 2.93GHz - 2x4MB - 6-5-B) ?V
(0.85V~1.5V) 1.55V 125A 130W 54.8° C Core 2 Extreme QX6850
(quad 3.0GHz - 2x4MB) ?V
(0.85V~1.5V) 1.55V 125A 130W 64.5° C Core 2 Extreme
(Yorkfield)
Socket 775 Core
Voltage Vmax Max.
Core
Amp. Thermal
Design
Power Max.
Cover
Temp. Core 2 Quad Q9300
(quad 2.5GHz - 2x3MB) ?V
(0.85V~1.3625V) 1.45V 125A 130W 64.5° C Core 2 Quad Q9450
(quad 2.66GHz - 2x6MB) ?V
(0.85V~1.3625V) 1.45V 125A 130W 64.5° C Core 2 Quad Q9550
(quad 2.83GHz - 2x6MB) ?V
(0.85V~1.3625V) 1.45V 125A 130W 64.5° C Core 2 Extreme QX9650
(quad 3.0GHz - 2x6MB) ?V
(0.85V~1.3625V) 1.45V 125A 130W 64.5° C Core 2 Extreme
(Harpertown)
Socket 771 Core
Voltage Vmax Max.
Core
Amp. Thermal
Design
Power Max.
Cover
Temp. Core 2 Extreme QX9775
(quad 3.2GHz - 2x6MB) ?V
(0.85V~1.35V) 1.35V 150A 150W 63° C

'Max. Case Temp.' is the maximum temperature allowable as measured on the exterior of the processor package in the middle directly above the chip die (under the heatsink). It is not the maximum internal ambient temperature of the system enclosure. The term 'case' refers to the processor's package, not the system case.

Regarding the chip's wattage numbers, Intel states: "The [Thermal Design Power] numbers ... reflect Intel's recommended design point and are not indicative of the maximum power the processor can dissipate under worst case conditions."
If the on-Die thermal probe reaches approximately 125° C (its catastrophic temperature), the CPU will automatically shut down and "the system bus signal THERMTRIP# will go active and stay active until the processor has cooled down and a RESET# has been initiated."
Message Edited by ai5u on 02-24-2008 06:11 AM

Message Edited by ai5u on 02-24-2008 06:14 AM

John XPS 700 · Answer

Thanks for the wonderful information!   I have a question, what does the TJ MAX temp mean on CPU-Z...for me its 100C, is that the max temp or something?

gdwrnch3 · Answer

John,  TjunctionMax: This value stands for the maximum temperature at the junction between the processor die and the PCB it sits on, this is usually much higher than the TCaseMax value.    TCaseMax: This value stands for the maximum temperature at the dead-center at the top of the processor core or the IHS which will ensure 100% stability and safety.       It is important not to confuse these two when reading the DTS temperature. If the DTS registers a temperature higher than TCaseMax, that doesn't mean the CPU is in danger, as the TCaseMax stands for the highest external temperature the CPU can take. On the other hand, when your chip reaches the Tjunction then you should start to worry, as that is a temperature you wouldn't want your CPU to cross. Message Edited by gdwrnch3 on 02-24-2008 04:04 PM

ronss · Answer

what are temps at stock speed, 3.0ghz...its possible you need better cooling... remember, you are running 4 cpus, so i am thinking that one would have to be a bit more concerned about temperatures on the quads.... my intel core 2 duo 6750 @3ghz. does not get over 50c on ortho, but i have some help in the cooling dept, zalman fan

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QX6850 Temps

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