Official GIGABYTE Forum
Overclocking, Benching, Events, Tweaking & Modding => Overclocking motherboards with Intel processors => Topic started by: Saldo on October 03, 2011, 01:01:50 pm
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My system is running fine on multiplier 48.
When running flightsimulator thye multiplier changes constantly between 28-48.
When not being taxed the system keeps the multiplier at 48.
Turbo boost has been disabled and also cpu enhanced state.
I am really puzzled.
CPU tmeps are 61-66 C.
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Today I ran CPUID Hardware Monitor and to my surprise I saw my cpu reaching temps of 96 C ! !
Now I understand that the multiplier was getting loweredr ; the temp had to go down.
So I first dialed back to 4 Ghz with stock settings.
Idle the temps 42-44 C .
Just by firing up the FSX menu, so not being in the game itself, causes temps to raise to 57 C.
Loading the game makes the temps rise to 70C and flying in the game let temps rise to 76 C.
Remeber this is watercooling ; all fans are clean, water level is at high.
My former processor was an I860 and with a Asus P5P55D mobo was running at 4.25 Ghz and temps never exeeded 80 degrees.
With a vcore of 1.6.
What I did was removing the cpu block cleaned the cpu and the waterblock and put it back with new pasta.
The max temp now is 85 C and idle is 43 C.
All advices/suggestions are welcome.
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Have you recently updated Bios ..... Vcore at 1.6 is really up-there .... do you have all this set to auto or is this a lot of your personal settings.
What the BIOS screen post as to the temp is more trust worthy then most Apps ..... if you have desk monitors, use two and average out the two.
OCCT is rather good and configurable to include TMP0,1 and 2 as well as CPU and all cores on a graph updating every second, even in Idle!
with clock and temps that high, you have to establish good , accurate reading before you move forward, CPUs are not cheap
You said you dialed it back to 4 Ghz......from what?
Anyway the main thing you need to add is a FULL system spec and any unusual system parameters(voltages and timings) if you want help.....I suspect this is why the threads been light on answers for you
Aussie Allan
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Below this thread there is another one by me where you will find all info you need.
Could you take a look at that please ?
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Below this thread there is another one by me where you will find all info you need.
Could you take a look at that please ?
This is the bulk information I need with detail of the memory especially.....something like.......
7-950 @4.1GHz
GA-X58A-UD3R
Present Bios
24GB Muskin 1600Mhz 7-9-7-24 (Model number XXXXXXXXXXXXXXXXX )
GTX-480 GT-EK block@940
W7-64
"My former processor was a I860 and with a Asus P5P55D mobo was runnijnhg at 4.25 Ghz and temps never exeeded 80 degrees."
you gave a previous Mobo and processor..... I don't even know what Mobo or CPU you have ...... I can't help you if you don't answer the questions put to you!
Aussie Allan
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Hardware :
I7-2600K @ 4.8 Ghz
z68XP-UD7 latest Bios : F9c
8Gb G.Skill Ripjaws 2133 mhz with fanmodule running at Expert/Extreme setting Timings
Gigabyte GTX580 SO running @ 905 mzh
OCZ 1000W psu
1x OCZ 60 Gb SSD sata 3
3x OCZ 120 Gb SSD sata 3
Thermaltake Kandalf case with factory built in liquid cooling system
Windows 7 Ultimate 64 bit
Voltages :
Vcore 1.48
Loadline 6
QPI 1.16
System agent 0.975
PCH 1.12
CPU Pll 1.88
Dram 1.66
System temp 43 C.
With a lower Vcore the system will hang within 2-3 minutes in flightsimulator.
Itried with a Vcore of 1.46 anmd Loadline levle of 8, but than the processor gets to 87 C.
I really get jalous when reading this overclock to 5Ghz with such low voltages : http://forums.overclockers.co.uk/showthread.php?t=18279474 (http://forums.overclockers.co.uk/showthread.php?t=18279474)
Is it my mob or is it my processor ? I am really puzzled.
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Now it all comes back to me with the extra information supplied......
"With a lower Vcore the system will hang within 2-3 minutes in flightsimulator.".....I'm not surprised as soon as I read ...
"Thermaltake Kandalf case with factory built in liquid cooling system"
These systems are now 6-7yrs old and never designed to run the type of loads you're loading onto it ..... I know as i ripped one apart to build my present system........if you're trying to cool the GPU as well :o
Let me explain a bit more ..... regardless if you're running half inch fitting or 2" fittings for that matter ..... the system is only as good as the smallest fitting or bore size ...... the radiator feed and exhaust tubes on the Kandalf have a 6mm bore .... their for a very, very limited flow rate
In idle and light load things are fine......when you load the system up....not enough flow-rate is available to cool the CPU sufficiently.
You can check this by a temp reading of the inlet temp of the radiator .... I suspect it will climb , and climb under load, .....probably at around 40C (Rad inlet temp) your system will crash at those clock loads ..... the flow rate for a 6mm hole (Flow rate for a set/given head pressure) is 8 times lower then a 12mm (1/2") hole ..... this is a set ratio .... "Every time you double the nominal bore size, flow rate will increase by a factor of 8 if the pump pressure is constant".....FACT!
If you want those clocks......look at modding and fitting a high performance RAD .... I did ;)
Aussie Allan
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Thanks for the help.
Now I understand wha lot more.
One question remains : why the system was able to cool my former setup with a 860 ( stock 2.8 ) and running it at 4.25 Ghz with a temp that never exeeded 80 C in Flightsimulato ?
I was under the impression that the SandyBridge runs much cooler with lower voltages....
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Luck of the draw!....you probably had a really good chip!..... there all really different ... even from the same batch ..... I know of one person that can go through 4 or 5 CPUs before he says ...."this is the one" .... sandybridge will fly but you have to keep the heat load under control, .... you still don't know if your chip is a goodie or Exellent till you can get ample cooling on the CPU at the much higher heat loads ... I suspect you have a good one...... as you can get there ..... but your cooling loop can't hold it there
Go through Intel's site and check out the stock thermal loading (Watts) of both chips, ..... it,s all maths, .....With the stock voltage / Mhz / and stated Watts of heat generated .......you can make your own formula to work out any given clock heat loading
Aussie Allan
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All CPUs are different and some will far out do others. Everybody is looking for the "golden chip" when overclocking and if you are lucky to find one then the sky's the limit. As Allan said though you still have to keep it cool or it won't last long.
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Now it all comes back to me with the extra information supplied......
"With a lower Vcore the system will hang within 2-3 minutes in flightsimulator.".....I'm not surprised as soon as I read ...
"Thermaltake Kandalf case with factory built in liquid cooling system"
In idle and light load things are fine......when you load the system up....not enough flow-rate is available to cool the CPU sufficiently.
You can check this by a temp reading of the inlet temp of the radiator .... I suspect it will climb , and climb under load, .....probably at around 40C (Rad inlet temp) your system will crash at those clock loads ..... the flow rate for a 6mm hole (Flow rate for a set/given head pressure) is 8 times lower then a 12mm (1/2") hole ..... this is a set ratio .... "Every time you double the nominal bore size, flow rate will increase by a factor of 8 if the pump pressure is constant".....FACT!
If you want those clocks......look at modding and fitting a high performance RAD .... I did ;)
Aussie Allan
Allen , as you wrote that have modificated the Kandalf LCS, would you tell me with what you have replaced it ?
And can you tell me how I can mesure th eimlet temp of the radioator ?
The tubes are feeling rather cold.
Thanks in advance.
Ps : To be sure I am going to have the cpu tested by the store where I bought it. As I have to send it by mail it will take to the end of the week before I will know more.
The same with the mobo, that I bought form another store.
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Hi
The best way of measuring the tempertures at a specific point in a loop is with a sensor that actually screws into the connectors like this:
http://www.candccentral.co.uk/phobya-temperature-sensor-internal-external-g1-4.html
I have several of these and they work brillliantly.
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Thanks, will buy me a sensor.
Any advice on a replacement liquid cooling sytsem which would fit into the Kandalf ?
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What DM states is a very good, dedicated, permanent solution for monitoring temp at specific points, yes even I have a couple of these in specific locations ..... but you also need somewhere to plug them into..... a second alternative is a non contact thermometer ... http://www.ebay.co.uk/itm/Non-Contact-IR-Infrared-Digital-Thermometer-Laser-/310339684448 ... this allows you to measure ANY point you wish.
Holding a rubber tube to measure temp will not cut it ..... you have to at least find something metal ... like the inlet (high temp side) of the RAD ....
the Rad mod I did required some handy work with a Jig-saw and a few hand tools and a cordless drill, not stunning, but highly practical and efficient and Ive included 2 rather dirty shots I did with the phone to give you some idea...... I even managed to squeeze in 6 fans for push/pull, which allows me to run the fans via a controller at 700/800 RPM for about 30ish DBAs of noise tops.... very cool!
The Rad is a Phobya G-Changer 360 .... excellent Rad for the money
Aussie Allan
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Many thanks for the great help.
This idea is certainly something I am going to try !
In the mean time I did some temp tests :
4.0 Ghz
CPU 1.32
Dram 1.66
Ratio 39x 103
Loadline D
QPI auto
System Agent auto
CPU Pll auto
Min temp 38C
Max temp 53C
4.2 Ghz
CPU 1.37
Dram 1.66
Ratio 41x 103
Loadline D
QPI 1.16
System Agent 0.955
CPU Pll 1.8
Min temp 38C
Max temp 53C
4.4 Ghz
CPU 1.40
Dram 1.66
Ratio 44x 100
Loadline 2
QPI 1.16
System Agent 0.955
CPU Pll 1.8
Min temp 38C
Max temp 53C
What do you think ?
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Am I correct when I say these min/max temps are in Idle loads ?
Aussie Allan
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You are correct.
These are min and max temps.
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I would say the temperatures are a little on the high side for idle rates. Have you got plenty of case cooling ?
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My case has a radiator with 3x 120mm fan , placed in the fornt door and I always leave it open, so no hot air gets into the case.
Beside that there are :
- 1x 120mm front fan
- 1x 120mm rear fan
- 1x 80 mm rear fan
- 1x 80 mm top fan
Also the psu sucks air from the case.
Case temp is around 28-34 C.
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After 2 days of waiting a new CPU i2600k arrived today.
Any advice on starting again with oc ?
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Saldo
The best advise I can give you or anyone wanting to get the best out of a given system..... is establish a stock setting base-line
everything set to standard/auto ..... record everything you can .....idle and load! .... temps, benchmarks, the lot.
this will give you valuable data to work from..... and let you know if your present cooling system is up to the challenge.
Aussie Allan
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Today I placed the new CPU.
Over these couple of days I placed a 25cm sidefan in the case door.
I A couple of years ago Thermaltake sold replacement doors with a 25cm fan fopr extra case cooling.
It now look the same as the TT version.
Temp results without manually oc :
CPU temp idle 28C instead of 33.
CPU package temp idle 34C instead of 38C
Case temp 24 C instead of 28.
Just did a test at 4.8 Ghz with FSX.
Everything is running perfectly.
Vcore is 1.4 ( 1.39 was just to little when setting the memory to it's default 2133 instead of 1866 ).
Way better than before.
Btw : why is cpu package temp higher than the highest core temp ?