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Q9550 temps

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30 Oct 2008
Posts
262
HI All,

I's just received a Q9550 (C1), to replace my E8400 (EO).

I've got it up to 3.4GHz on a 400 FSB, and looks like it's pretty stable with a Core Voltage of 1.28 under load (hits about 1.3v at idle). I could probably play a bit more to help the temps).

Now, it's a hot day, and my room is a bit warmish, but the temps I'm getting are:

Core 0 - 72 C
Core 1 - 66 C
Core 2 - 71 C
Core 3 - 69 C

Under Prime (FFT) using my arctic freezer pro 7 and arctic silver 5

Are these a bit on the toasty side - it appears idea is around 40 -50...

I'm used to the E8400 (even at 3.6GHz) hitting low 60's tops.


Any thoughts welcome...

Cheers,

Rich
 
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Temps seem ok, I would not want to go any higher. The Freezer, in my personal opinion is ok for Dual core cpu's but can or may struggle with quad core cpu's.

Which option did you choose when applying AS5.
 
I agree with RJC temps are fine, and the cooler is ok for mild quad clocking, but nothing to heavy.

Also if u have only just applied the AS5 remember it takes about 200 hours to cure before u see its full potential.
 
Cheers for the reassurance! Good to hear that they're not abnormal temps - just a bit of a shock coming from a nice cool over clock.

I looked up on the arctic silver website, and they recommended a horizontal line across the heat spreader. I did forget to do the 'wiggle' when putting the fan on the chip.

I might look to replace the FP7 - what would be a good replacement (that's not unbearably loud...!)

Cheers

Rich

PS. Hit 75 on one core during IBT test - though only on one core. Is it usual to have a mixture of temps (ie 68-71-66-72) - wasnt sure if that meant I hadn't put the paste on evenly...
 
Those temps are fine. IBT does tend to reach a higher temp than prime. Your fine upto 80oc.
Keep playing though mate you should see 3.8ghz before long.
 
Cheers - I'll definitely have a good tinker to see what I can do.

What cooler would be more suitable for more 'aggressive' overclocking?

The one's that spring to mind are the H50 (not entirely convinced but those as it seems most people replace the supplied fan - seems a bit rich after spending £60 odd...).

Cheers,

Rich
 
I used the Thermalright Ultra on my i7 setup with Sharkoon 2000 fan which kept it fairly cool :)
 
The akasa looks interesting, and a decent price point. I noticed the bottom has the exposed heat pipes - how does that work with thermal paste? Do you just treat it as normal?

Rich
 
Wow - seems a bit more involved than I'm used to!

Still, if it gets good results, it's got to be worth it.

Just put my order in - have a fair amount of Arctic Silver so should be okay...

Cheers,

Rich
 
you could probably knock 8-10c off the temps on a cooler day/night it's very muggy.

my idle temp is up around 8c too
 
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I've got a C1 Q9450 overclock and my DTS core temps are pretty much the same when I tried that speed. Even the differences between cores looks the same - these are not absolute and a bit dodgy and inaccurate due to different calibration and slope errors between cores.

They are still well off thermal throttling, which is all those DTS sensors do anyway. They are not accurate until they get close to zero, so as long as you are a good 20-30 off 0 (70-80C if TJmax is assumed 100) as a general guideline, you are in a comfy zone.

Tcase (centre of CPU, just under the heatspreader) is the important one as far as Intel are concerned - mine max's out at 55C, verified via Thermometer. I'd imagine yours is very similar. The max stated by Intel is 71.2C, so well off.

That voltage is in the safe zone, but high VTT and core voltage is what these 45nm chips are more sensitive to in terms of damage rather than temp. The box states 1.25v max, Intel data sheets 1.36v but this might include a spike or peak as it goes under load. I'd say under 1.3v is absolutely safe for a long life, but many run higher.

I run mine at 3.2Ghz with a slight bump in voltage (1.18->1.20v) and all the energy saving features turned on. Start to get above this, and the increases in voltage seem silly for a few hundred extra Mhz.
 
Thanks - lots of good info there.

I've tried keeping more of a handle on the volts by adjusting manually in bios - there seems to be a afir bit of vdroop (I think that's what it's called: where you might set 1.3v in the bios, but the CPUz only registers 1.28 or something like that).

At the moment the cpu voltage is set as auto (not too keen on that) but it's the only way it's staying stable at 3.4Ghz (CPUz is registering 1.31v at idle, and 1.285v under load) - otherwise it's failing after 4 runs on IBT.

I set the voltage manually in the bios at 1.325, but was resulting in 1.28v in cpuz when idle. I'm thinking that if I set it at something like 1.35, then that might mean it hits 1.3v in real terms. Then I can tweak and get it lower and stable. Sound reasonable?

Plus, I've the new cooler on the way - so should hopefully get the temps down a bit..

I've seen some people mention LinX - is this any different to IBT?

Cheers,

Rich
 
http://wap.z51.biz/wapz51v3/dl.aspx?file_id=33292

Link to my stable q9550 @ 3.6ghz at 1.275volts (currently running) although i think i could still push it up to 3.7 without any silly temps.

http://wap.z51.biz/wapz51v3/dl.aspx?file_id=33297

The cooler that I'm using, the noctua c12p top down although i don't think OC stock it anymore.

At the clock you've got I had 3.4ghz stable at 1.175v which shows quite a leap up in volts to keep the system stable. I'm sure the better cooler will hep with your high end temps though :)

http://forums.overclockers.co.uk/showthread.php?t=18155964

Thats the topic i had up in the OC forum
 
Wow - looks like a beast of a cooler! No wonder your temps are nice and low (coupled with a nice low voltage). I had been keeping an eye on your thread. Looks like you've a nice chip to play with there.

I'm pretty much stuck at 3.4 with the board I've got (there seems to be a FSB wall at 415+, so I'm happy if I can get it stable and relatively cool at 3.4). I ti9nki that should do me for the foreseeable - I'll look into what new stuff is available in the next 6 months or so, and will hopefully be able to sell the quad and 775 stuff...

Rich
 
Just a quick thought - I've setting to adjust CPU termination, CPU PLL and CPU Ref voltages - will these help at all? (currently all on auto...)

Cheers,

Rich
 
I agree with RJC temps are fine, and the cooler is ok for mild quad clocking, but nothing to heavy.

Also if u have only just applied the AS5 remember it takes about 200 hours to cure before u see its full potential.

mmmm perhaps if your lucky the max of 5C difference, most of the time 2-3 degrees not enough to plan future overclocking on
 
I'm not banking on that making a huge difference. My new cooler has arrived, but I didn't get the chance to fit it over the weekend - should be able to have a play tonight though.

I've got the chip stable at 3.5Ghz with the bios set at 1.35v, but is around 1.28 to 1.3 actual reading through CPU-Z. The temps haven't changed that much; still topping out at 75c after 20 runs of IBT on high.

I'm hoping the new cooler will make a bit of a difference - Peak temperatures I'm not too worried about - the idle just seems a bit high to me at 50c.

Cheers,

Rich




mmmm perhaps if your lucky the max of 5C difference, most of the time 2-3 degrees not enough to plan future overclocking on
 
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