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E6400 - P5B Deluxe overclock temp questions

post #1 of 12
Thread Starter 
I just put together a new rig. E6400, P5B deluxe, Corsair XMS2 TWIN2X2048-6400. Stock HSF with antec silver paste.

Normal operations (like entering this post) I run 32C cpu and 29C case. TAT gives different (lower) numbers than MBM5, ASUS Probe, etc. As soon as I run 100% load either with TAT or ORTHOS (prime95) the cpu temps go into the very high 60's after about 4 passes (just a couple of minutes). If I stop the load test the temps immediately drop back to the 30's. The case temp never gets over 35C. I am currently running a moderate overclock. 2.84Ghz (8X 355 1.250V CPU - CPU Z shows 1.216). Memory 2.0V 5-5-5-18 manually set using the shown SPD values for 400MHz from CPU-Z.

Questions:
Are the temps ok? I expected lower under load.
How hard can I push it with stock HSF?
When I increase the CPU voltage the temps start going into the low 70's.
Any specific recommendations welcomed.
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post #2 of 12
did you lap it at all, these things are netoriouse for concave tops, and it would be far better to get some after market cooling if you can afford it
xeon
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xeon
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post #3 of 12
Don't overclock with that stock heatsink.

Those temps are borderline MAX as it is.

Low 70's = STOP! NOW.
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2011 ~ Current
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2x 500GB WD Black RAID 0 1TB WD Black Samsung WriteMaster Prolima Tech Megahalems 
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post #4 of 12
Thread Starter 
No, I didnt lap it or do anything else out of the box except replace the supplied goop with antec silver.

As far as the 70's go I know thats way to high, but the processor will throttle if it gets too hot. Right now I hit 69 peak (measured with TAT). The other temp monitors I tried all show MUCH higher temps.

The temps drop extremely fast when I stop the ORTHOS test so the stock HSF is making fairly good contact with the cpu. It is back in the 30's to low 40s in just a couple of seconds. Under normal usuage I dont go higher than the 50s. Even gaming (city of heros/villians) temps stay in the mid 60's.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6400 ASUS P5B Deluxe eVGA 7900GS Corsair 2X1024 6400 
Hard DriveOSPowerCase
seagate 7200.9 XP Pro Antec 450w Antec Sonata II 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6400 ASUS P5B Deluxe eVGA 7900GS Corsair 2X1024 6400 
Hard DriveOSPowerCase
seagate 7200.9 XP Pro Antec 450w Antec Sonata II 
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post #5 of 12
Thread Starter 
Does anybody have any specific recommendations for after market air coolers? I prefer quiet over pedal to the metal blazing ass speed that needs high voltage and high speed fans. So if it's noiser than the stock HSF I'll just live with 2.8GHz overclock.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6400 ASUS P5B Deluxe eVGA 7900GS Corsair 2X1024 6400 
Hard DriveOSPowerCase
seagate 7200.9 XP Pro Antec 450w Antec Sonata II 
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My System
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e6400 ASUS P5B Deluxe eVGA 7900GS Corsair 2X1024 6400 
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seagate 7200.9 XP Pro Antec 450w Antec Sonata II 
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post #6 of 12
Tuniq Tower 120
    
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post #7 of 12
Thread Starter 
That looks nice, but a $70 seems a bit pricey. Would the Arctic Freezer 7 Pro at less than half the price be good enough? Also I wouldn't have to remove the MB to install it.
My System
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CPUMotherboardGraphicsRAM
e6400 ASUS P5B Deluxe eVGA 7900GS Corsair 2X1024 6400 
Hard DriveOSPowerCase
seagate 7200.9 XP Pro Antec 450w Antec Sonata II 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6400 ASUS P5B Deluxe eVGA 7900GS Corsair 2X1024 6400 
Hard DriveOSPowerCase
seagate 7200.9 XP Pro Antec 450w Antec Sonata II 
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post #8 of 12
Quote:
Originally Posted by MajorNinth View Post
That looks nice, but a $70 seems a bit pricey. Would the Arctic Freezer 7 Pro at less than half the price be good enough? Also I wouldn't have to remove the MB to install it.
How much did you spend on your computer? Does $70.00 still seem pricey after that expenditure? When you buy a very good amplifier to play your music do you purchase cheap speakers because the good ones are pricey?

It all depends on what you want. If you want a very well cooled processor then you go with the Tuniq and how it looks is not at all what counts in cooling. The Arctic Freezer will give better than stock cooling when concerned with the temperature drop delta but in no way can it compete with the load cooling of the Tuniq.

R
Roped In
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Roped In
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post #9 of 12
Thread Starter 
Well I do know that money will buy good things and the comparing a top of the line cooler with something half the price will give some differences (I would hope so at least).

By "looks" I meant the specs, I dont care what it physically looks like as I dont go in for the lights, bells and whistles of side panel cutouts and neon lites with custom paint jobs.

The only useful part of your answer was that the Arctic cooler is better than stock (again I would hope so). What I asked was "is it good enough?". I am not trying to get to 4Ghz or beat any speed records. My stock cooler works ok as far as noise and normal running and idle temps. But when I load it down with ORTHOS I get somewhat high temps (very high 60's). Would the arctic cooler or something else cheaper than the Tuniq keep my temps down and be somewhat quiet and maybe even allow me to hit 3 or 3.2? Currently my idle and surfing temps run around 28-32C (case temps around 31-33) which seem to be lower than everybody posts for their idle temps. My MB temp never goes above 35C even under heavy loads.

Also when you are on a budget you sometimes have to get by on the cheap. Unfortunately, not everybdy can afford phase cooling on a Quad Extreme CPU. I would love to be able to buy what I want and not just have to get good enough. This rig is replacing my 4 year old relic...sorry for the rant, just looking for good information.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6400 ASUS P5B Deluxe eVGA 7900GS Corsair 2X1024 6400 
Hard DriveOSPowerCase
seagate 7200.9 XP Pro Antec 450w Antec Sonata II 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6400 ASUS P5B Deluxe eVGA 7900GS Corsair 2X1024 6400 
Hard DriveOSPowerCase
seagate 7200.9 XP Pro Antec 450w Antec Sonata II 
  hide details  
Reply
post #10 of 12
Idle temps are not much of an indicator of anything useful other than to show that you have seated your CPU well.

The specs of the Arctic Cooler will do what I said. It will improve your Temperature Drop Delta which is beneficial for long periods of gaming or programs that increase/decrease CPU need rather than long periods that necessitate CPU continual maximal loads. The Arctic Cooler will be far less use for those longterm maximal loads.

No one is speaking of Phase Cooling, etc. I am personally speaking of a ~30.00 differential. If that differential is a great amount to you then you will find that your maximum load temps with the Arctic Cooler can be somewhat suspect. I would go for the Tuniq Tower especially if you wish to clock up that CPU to 3 or 3.2. Consider the price of the X6800 and that the 3.2 will beat it in 95% of the applications/games that you use and apply that extra 30.00 to the ~1,000.00 you save in that overclock.

I run a BigTyphoon. My CPU at 400 X 800 = 3.2Ghz gives me 54C Load temps. At 427 X 800 I get a 62C Full TAT Load which is even more load hungry than Orthos Dual Prime.

You ask "Is it good enough". For a 3.0 - 3.2Ghz overclock, my view is no it is not which is why I responded the way I did. If the 30.00 is a lot of money for you, then possibly you will find that the clock you now maintain is good enough. You need to run your clock to 3.2GHz to determine if the overclock thermal is "Good Enough". "Good Enough" is somewhat a matter of personal preference and some will say that the stock cooler is good enough for you with the temps you are getting. I am glad that you are more concerned with thermal performance than looks.

Remember not to compare the temperatures of the Core2 with any other CPU as it contains a Digital Thermal Sensor placed within the CPU Core rather than an Analogue sensor place outside the core and which uses an algorithmic interpretive method of determining the thermal output. Your Core2 will show hotter but not because it is hotter than the older CPUs. It will show hotter because the older CPUs were not giving you as precise a reading.


Rant away though, I don't mind. My command of English and context is somewhat suspect as it is not a cradle language

R
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Roped In
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Core i7 2600k P8P67 Pro Rev (3.1) @ B3 XFX Radeon HD 6950 XXX 16GB G.SKILL Ripjaws 9-11-9-28 
Hard DriveOptical DriveOSMonitor
2 X Callisto Deluxe 25nm 60GB Plextor PX-B910SA 4x Blu-ray DVD-RW Win7 64 2 x Samsung 275T+ 
KeyboardPowerCaseMouse
Logitech G15 Corsair HX10000 Antec 1200 Logitech G7 
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Splatter Game Pad 
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