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~~~~~IMPORTANT SANDYBRIDGE OC INFO: Voltages & OC Guide!!~~~~~

agreed games dont stress the cores as much as prime95. hence why those that use they're PC's for other things requiring stability at FULL load (i.e. VM's and encoding and browsing all at the same time etc etc - You know multitasking ;), choose prime95 as their choice ;)

Just looking forward to some stability shots to start getting averages, thanks
 
zoomee said:
agreed games dont stress the cores as much as prime95. hence why those that use they're PC's for other things requiring stability at FULL load (i.e. VM's and encoding and browsing all at the same time etc etc - You know multitasking ;), choose prime95 as their choice ;)

Just looking forward to some stability shots to start getting averages, thanks
Click to expand...

Well I am finally getting round to running an overnight Blend test @ 4.6ghz will post a screen shot tommorow, I normally run Small FFT as it maxes out the temps quickly but I already know it reaches 70C so I am running Blend as that is what people recommend for stability.
 
Things are looking up a bit. After running 9 hours small FFT and BSOD after 10 mins of blend I have tweaked the settings a bit. Activated the XMP for the memory. Upped the mem voltage to 1.55 and give the vcore a little bump to 1.35. Running 90 mins of blend now at 4.6GHz with max temp of 48 degrees.
 
DrSteve said:
Things are looking up a bit. After running 9 hours small FFT and BSOD after 10 mins of blend I have tweaked the settings a bit. Activated the XMP for the memory. Upped the mem voltage to 1.55 and give the vcore a little bump to 1.35. Running 90 mins of blend now at 4.6GHz with max temp of 48 degrees.
Click to expand...

48C seems too low unless you have super watercooling and I mean super, are you using Speedfan per chance as you need to add 15C to that for real temps so that would be 63C which is still low but about right if you had the best air cooler available
 
nlel1975 said:
48C seems too low unless you have super watercooling and I mean super, are you using Speedfan per chance as you need to add 15C to that for real temps so that would be 63C which is still low but about right if you had the best air cooler available
Click to expand...

Nope, using core temp. The room is relatively cool. Have a look....

temps.jpg
 
nlel1975 said:
Ah you have water cooling :) that explains it
Click to expand...

Yup :)
Need to refit the block when my MX-4 arrives tomorrow to try and sort out the sometime 10 degree difference between cores #0 and #1

Mental note for the future - add some TIM as the first item in the basket
 
DrSteve said:
Yup :)
Need to refit the block when my MX-4 arrives tomorrow to try and sort out the sometime 10 degree difference between cores #0 and #1

Mental note for the future - add some TIM as the first item in the basket
Click to expand...

I've reseated mine twice but still get 10c difference between the coldest and warmest cores at full chat - think the sensors are funny on SB :rolleyes:
 
DrSteve said:
Yup :)
Need to refit the block when my MX-4 arrives tomorrow to try and sort out the sometime 10 degree difference between cores #0 and #1

Mental note for the future - add some TIM as the first item in the basket
Click to expand...

Those are awesome temps, you have what I call super watercooling :) I think you could push for 4.8 easily because 1.42v is not going to make your watercooling even sweat... as long as you are brave enough for 1.42
 
nlel1975 said:
Those are awesome temps, you have what I call super watercooling :) I think you could push for 4.8 easily because 1.42v is not going to make your watercooling even sweat... as long as you are brave enough for 1.42
Click to expand...

Trying to get 4.6 stable at the minute and it's slowly getting there. Taking me a while to get my brain round all these new bios settings.
I'm a bit worried about pumping too much vcore through this chip given all the recent talk of chips dying. On the other hand over on xs people are throughing well over 1.5v through them without killing them.
 
Todge said:
Not using the beta version of CPUz may well be the case. Honestly cant see anyone getting 4.6ghz out of less than 1.1v
Click to expand...

Is it possible he purposely ran it at a very low vcore to show us it running Prime 95 for a few minutes at 4.6ghz... or is it because his version CPU-Z is wrong
 
DrSteve said:
Trying to get 4.6 stable at the minute and it's slowly getting there. Taking me a while to get my brain round all these new bios settings.
I'm a bit worried about pumping too much vcore through this chip given all the recent talk of chips dying. On the other hand over on xs people are throughing well over 1.5v through them without killing them.
Click to expand...

With that water cooling setup you deserve an extremely good CPU!
 
Bugger.
BSOD at 2 hours of blend.

Might need a bit of help with these voltage settings if that's ok.

46 x 100
Vcore 1.36v - gives up to 1.376 in cpuz with vdroop on auto (only have low or auto)
PLL overvoltage enabled
DDR 1600 with XMP on, auto timings which appear to be correct in cpuz
Spread spectrum off
DRAM 1.55v
SA/PLL/PCH all on auto - this is where I'm not so sure. For my Q6600 I had to up some of the other voltages quite a bit but most guides say to leave these for SB overclocking..

Any help appreciated.
 
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