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graysky
04-26-2007, 03:17 PM
Anyone know what "safe" temp ranges are for a Q6600?

As I understand it, safe temps for an e6x00 are:

tcase = temp at the thermal spreader as read by speedfan <55 C
tjunction = temp at the core as read by TAT <70 C

Here are my temps after 4 orthos (cpu affinity set one per core) for 40-50 minutes:


9x266 = 2.4 GHz

Speedfan: 39-45C (coolest core and hottest)
TAT: 60 and 57.

----------------------

9x300 = 2.7 GHz = stable

Speedfan: 44-53 (coolest and hottest)
TAT: 68 and 65

----------------------

9x333 = 3.0 GHz = stable
Speedfan: 46-56 (coolest and hottest)
TAT: 71 and 67

I forgot to record room temp which was about 72 F.

Relevant system specs: Asus P5B Deluxe, Q6600+Ultra-120 Extreme+AS5, 2x1gig Ballistix DDR2-800 @ 4-4-4-12. Also, everything is stock except the FSB (speedstep is enabled, C1E is enabled, CPU and mem voltages are stock).

Slammin
04-26-2007, 05:07 PM
As you do understand what the 'safe' temps are already, what are you really asking? Are you wanting to know how far above the 'safe' temps you can go?

I think your chip will let you know :-)

I get instability past 70c with my cpu, though not always. I can be completely stable at 75c with a very cool ambient, but I can see instability right at about 70c with high ambient. Best bet is to keep it below 70c if you can.

elsupremo
04-26-2007, 08:56 PM
I've seen the qx6700 (not mine lol) stable at up to 90...lol (Prime95 loading on 4 cores)

Achill3uS
04-26-2007, 09:56 PM
I've seen the qx6700 (not mine lol) stable at up to 90...lol (Prime95 loading on 4 cores)

yes, Its true, my Q66 @ 1.45v w/ scythe infinity was under prime95 95°C stable for hours @ 3600mhz :D

graysky
04-27-2007, 12:06 AM
As you do understand what the 'safe' temps are already, what are you really asking?

Well, those numbers (55 tcase and 70 tjunction) are for dual core chips. I wanna know if the limits are higher on quads.

Aerou
04-27-2007, 02:03 AM
yes, Its true, my Q66 @ 1.45v w/ scythe infinity was under prime95 95&#176;C stable for hours @ 3600mhz :D

wow, but did did the cpu die afterwards? :D

we all now that this aint cool, right?

My 0,02 are : lifespan and stability-wise - dont go over 65 TAT
for benchies, as long as its stable, higher values are fine
it depends on your 24/7 use, whether you'll be having 24/7 100&#37; load on all cores

if you feel into it - try lapping the cpu, helps a lot

SLi_dog
04-27-2007, 03:26 AM
From what I've heard and generally the rule I use is keep the quads below 75C CoreTemps while running the Prime95/Orthos Small FFT test for a minimum of 10 minutes.


Shouldn't this be in the Intel section :confused: