QX6850 Overclocking

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Just wanted to see who else is overclocking a QX6850, I am running mine at 3.6 using x11 Multiplier, Normal temp of 25c and a fully loaded temp of 40c
 
Thorne said:
I am running mine at 3.6 using x11 Multiplier, Normal temp of 25c and a fully loaded temp of 40c
I am guessing that those temps are not correct unless you are using some amazing cooling or have your PC set-up in a freezing cold room!

That looks like a nice clock but how much ££££ did you lay down on that QX6850! :eek: :D

[edit] Its always appreciated when someone includes screenshots so see what you can rustle up.
 
Those are the temps according to Intel TAT althought Gigabyte easytune shows lower temps, its hard to know which set of readings are accurate so I put down the higher set of readings on here

I am using a Coolit systems Freezone liquid+peltier effect cooler mounted at the top in my case pic below, case is a bit messy but waiting for delivery of more equipment before sorting it out

case.jpg
cpuz36.jpg


CPU temp Idle

gigabyte.jpg


CPU temp Prime torture test for 5 mins

gigabyteprime.jpg
 
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I just ran core temp but at the moment I cant access photobucket to upload the pics, I will add them as soon as I can.

The readings from coretemp were


__________Idle_______Loaded (Prime95)
Core 0..........15c..............42c
Core 1..........16c..............36c
Core 2..........19c..............37c
Core 3..........19c..............45c



I know my case is looking a mess but I am waiting for a delivery tomorrow of 2 x Icy Dock MB-454SPF 4-Bay , 2 x Hitachi Deskstar T7K500 NCQ 500GB Sata II , a BFG Ageia PhysX Accelerator and a copy of Vista Ultimate so will sort it all out when I get everything fitted and working.
 
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Thorne said:
a BFG Ageia PhysX Accelerator

i feel thread trashing coming on...

I would say that the temps are out by a few degrees, that seems crazily low for a quad core, is everything setup to read the temp's correct for the G0 stepping cpu's?
 
V|per said:
i feel thread trashing coming on...

I would say that the temps are out by a few degrees, that seems crazily low for a quad core, is everything setup to read the temp's correct for the G0 stepping cpu's?

What would need to be setup to correct the temp reading for a G0 CPU?

I agree the readings look low but everything I have tried to use for readings shows a different temperature.
 
It's been rumoured that the G0's are a good 10-15°c out, some motherboards have had bios updates so that they read the temperature correctly, some programs, such as speedfan, need setting up so that the temeratures are read correctly (they use an offset from the normal..)

I think the only way you can be sure of the temps is to get a probe.. and even then, you cant just chuck it into one of the cores...

What does your bios say the cpu temp is (this would obviously be idle..) if it was, say, 10°c higher than the idle temp in windows, i would add on 10°c to the windows temp... again, this still isn't the most accurate way, but it might give you more realistic temps.






Of course, they could just be reading correctly... :D
 
If it doesn't crash who cares what the temperatures are, at the end of the day :) You'll soon notice it throttling if its overheating.

also.... PhysX.. urgh (couldn't resist sorry!)
 
V|per said:
It's been rumoured that the G0's are a good 10-15°c out, some motherboards have had bios updates so that they read the temperature correctly, some programs, such as speedfan, need setting up so that the temeratures are read correctly (they use an offset from the normal..)

I think the only way you can be sure of the temps is to get a probe.. and even then, you cant just chuck it into one of the cores...

What does your bios say the cpu temp is (this would obviously be idle..) if it was, say, 10°c higher than the idle temp in windows, i would add on 10°c to the windows temp... again, this still isn't the most accurate way, but it might give you more realistic temps.






Of course, they could just be reading correctly... :D

I just tried a temperature probe on the back of the CPU block and it reads 20c at idle and only goes up to 24c when running prime94.
 
Durzel said:
If it doesn't crash who cares what the temperatures are, at the end of the day :) You'll soon notice it throttling if its overheating.

also.... PhysX.. urgh (couldn't resist sorry!)

I have run this setup flat out and so far it hasnt failed once or throttles back or i just havent noticed.


Whats wrong with PhysX? I was just curious to try one out not that I have any real use for it.
 
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Well, I have to admit I'm stumped! There is no way that thing should be able to do what you've done with it. Had I not seen your results I'd never have believed it. Looks great though, nice little piece of kit - how was it to install?

I had a good sniff around on their website and I can't find any shots of the fan/rad/TEC setup from behind... I'm guessing that the TECs are the blue things mounted top and bottom and the fan is on the back? How loud are they at full tilt and what speed do they run at with your current clock?

And I have to ask - How on earth do 6 tiny TECs totaling 57W and a tiny Rad cool an overclocked Quad :confused:

Looks smart though - shame you cant add the GFX card into the loop - but I did see they are now offering standalone systems.
 
Yeah those temps are deffo out. Add 15c to your temps. Speedfan can be configured to take this into account but speedfan usually reports very low to begin with so I don't know how much help that will be. Best to just add 15c to core temp imo. I wouldn't worry too much as even with an extra 15c those temps are still very good.
 
I attached some thermocouples to the CPU block and on Idle it was reading 20c up to 38c fully loaded. I know this is not the actually internal core temp but closely correspond to the coretemp readings.
 
That coolit thingy seems to work very well then. It seems the tec is not on the block though. It is chilling the water some how
 
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