I7-3770K at 3.2Ghz - actually OC'd to 5Ghz in BIOS

[boskee]

as the title says, for whatever reason, my I7-3770k now reports as running at 3.2Ghz.

I've ran it OC'd at 4.8-5.0 Ghz stable for over a year, and have never had any problems to date.

Utilities are reporting it as under utilized.. running below norm I suppose.

Any ideas? SiSoft Sandra says to check power management, but nothing has changed there. BIOS still shows 48x (currently) x100 for theoretical 4.8Ghz.

Thanks for the help and suggestions, as this is disconcerting to say the least.. I've reset to UEFI defaults, which I figured would run the CPU at the base 3.5Ghz, but is at 3.2Ghz instead.

 

[Abwx]

Try Super Pi bench and compare to 3770k results here and there.

 

[ShintaiDK]

Make sure you allow enough wattage/amps/TDP in BIOS.

 

[Burpo]

You didn't say what board, or what version Windows or OS, so here goes a shot in the dark..
Control Panel, Power Options, Advanced Power Settings, Processor Power Management, make sure settings are correct (Maximum 100%)..

 

[boskee]

You didn't say what board, or what version Windows or OS, so here goes a shot in the dark..
Control Panel, Power Options, Advanced Power Settings, Processor Power Management, make sure settings are correct (Maximum 100%)..

Hey, thanks for replying. My Power Management is default, other than disabling sleep/hibernate. No powering off/down of any hardware or devices.
My motherboard is the ASRock Extreme6 Z77. I'm running Windows 7 Ultimate with all available ( other than a couple optional ) updates, as well.

 

[schmuckley]

hrm..possible degradation?
I'm positive it was going over 80c @ 4.8-5.0Ghz for a year.
That could lead to degradation.

 

[Erenhardt]

Do you have motherboard overclocking utilities installed? Those like to overwrite bios settings.

 

[boskee]

Do you have motherboard overclocking utilities installed? Those like to overwrite bios settings.

I have ASRock Extreme Tuning installed
I was also tinkering with Intel Extreme Tuning Utility and think I may have somehow written a profile to my own system..

I restored a backup I made with Acronis True Image, set my BIOS to run at 5.0Ghz and wii try to post a couple/few screenshots for those here to examine and see if anyone thinks my values are dangerous..

Thanks for replying

 

[boskee]

 

[boskee]

grr.. I give up.. not good at this type of thing, trying to post a picture on my desktop.. of course the link won't be viewable by anyone else..

thanks for the replies, though

 

[boskee]

hrm..possible degradation?
I'm positive it was going over 80c @ 4.8-5.0Ghz for a year.
That could lead to degradation.

Here's some core temps before and after a run or two of Intel Burn Test.

http://tinypic.com/usermedia.php?uo=adkBqYNLltuIrVB7tU6J2Yh4l5k2TGxc#.VCUArPn3VIq

http://tinypic.com/usermedia.php?uo=adkBqYNLltvwbNgsxpA9K4h4l5k2TGxc#.VCUCnfn3VIo

[URL="http://tinypic.com/usermedia.php?uo=adkBqYNLlttiOIzTqmzr5Yh4l5k2TGxc#.VCUCsvn3VIo"]http://tinypic.com/usermedia.php?uo=adkBqYNLlttiOIzTqmzr5Yh4l5k2TGxc#.VCUCsvn3VIo
[/URL]

 

[coffeejunkee]

Those look like 3.2 GHz temps, certainly not 4.8 GHz temps. Even with monster cooling you should be hitting 80 more likely 90 at that freq. You do realize 4.8 is extremely high for Ivy without delidding and watercooling?

Your priority should now be to get back at stock speeds. My advice would be to use the reset option on your board, some kind of jumper or button. Refer to manual. If that fails I would reflash the latest bios, that should get you back at proper stock settings.

 

[boskee]

Those look like 3.2 GHz temps, certainly not 4.8 GHz temps. Even with monster cooling you should be hitting 80 more likely 90 at that freq. You do realize 4.8 is extremely high for Ivy without delidding and watercooling?

Your priority should now be to get back at stock speeds. My advice would be to use the reset option on your board, some kind of jumper or button. Refer to manual. If that fails I would reflash the latest bios, that should get you back at proper stock settings.

Hi, here are a couple of screenshots with normal and post-stress runs at 4.8Ghz earlier today. I cleared my CMOS and uninstalled Intel Extreme Tuning and set the default in profile I had applied by mistake..


http://i1153.photobucket.com/albums/p518/Neal_Martin/Normaltempsat5Ghz.png


http://i1153.photobucket.com/albums/p518/Neal_Martin/TempsafterITBonhighfor10runs.png

 

[boskee]

I give up.. me and posting pics just doesn't work on this site..

 

[coffeejunkee]

I can see your pics fine.

The Asrock utility might show 4.8 and 5.0 GHz but I don't think you're really running at that speed. I say that because the gflops in IBT are way lower than they should be. (also search for HT affecting gflops negatively in IBT). Use Throttlestop to see the actual multiplier.

Also, your temps are way too high and hitting the throttlepoint. At that voltage those temps are dangerous for your cpu.

 

[boskee]

I can see your pics fine.

The Asrock utility might show 4.8 and 5.0 GHz but I don't think you're really running at that speed. I say that because the gflops in IBT are way lower than they should be. (also search for HT affecting gflops negatively in IBT). Use Throttlestop to see the actual multiplier.

Also, your temps are way too high and hitting the throttlepoint. At that voltage those temps are dangerous for your cpu.

Thanks for the information. I'll look into what typical gflops are in IBT for similar rigs. Will definitely grab Throttlestop to see what the multiplier actually is and post back.

 

[boskee]

Thanks for the information. I'll look into what typical gflops are in IBT for similar rigs. Will definitely grab Throttlestop to see what the multiplier actually is and post back.

Ok, ran Throttlestop and captured it and temps during. Also, ran IBT at 4.7Ghz and captured the result and ending temps. I think this looks better..

http://i1153.photobucket.com/albums/p518/Neal_Martin/throttlestopat47Ghz.png

http://i1153.photobucket.com/albums/p518/Neal_Martin/IBTtempsandgflopsat47Ghz.png

 

[coffeejunkee]

Those temps look better although still high but that's ivy bridge for ya.

Not sure about the validity of IBT testing though on i7 with HT. Those gflops are still very low and thus the stresstest might not actually put full load on the cpu. I would try without HT as well.

Also check for whea errors in windows event viewer. IBT might claim the test was succesfull but it doesn't take into account possible whea errors.

 

[bailw]

Yep GFlops is quite low.

Hers my 2500k @ 4.6GHz and 1866MHz ram.

 

[coffeejunkee]

Good thing you mentioned ram. OP, you need to set ram to maximum amount for highest stress level. Even then, I personally don't bother with Linpack/IBT, my experience is games still crash even after 100 runs Linx stable.

 

[boskee]

Yep GFlops is quite low.

Hers my 2500k @ 4.6GHz and 1866MHz ram.

Cool deal. I tested it after tweaking some settings (voltage) and saw 132gflops, but with this motherboard, I see my cpu idle at 1600mhz and ramp up to the 4.7ghz when running IBT or similar program. I've looked thru my settings and have now set the C3 and C6 states to enabled and disabled package C state as I read to do, but still the lower speeds until benchmarking, etc..
ASRock Extreme6 Z77 MBO and not sure what setting would have the CPU run full on.. wouldn't leave it that way, just trying to learn a bit more..

Notice the CPU has idled down to 1680.04 MHz, but you can see the 132.3411 Gflops from the run..

http://i1153.photobucket.com/albums/p518/Neal_Martin/47ghzibtandrealtemp.png

 

[unclewebb]

The two things that control your CPU MHz as reported by RealTemp are your C States and your Minimum processor state which can be adjusted in the Control Panel - Power Options.

If you want a constant 4.7 GHz when lightly loaded or idle, the minimum processor state needs to be set to 100% and the C States need to be disabled.

Some users like to use a Balanced power profile when lightly loaded. This profile has the minimum processor state set to 5%. This does not drop the CPU down to 5% but it does let the CPU idle down as much as possible. This will drop the MHz and it will drop the CPU voltage down to about 0.8 volts depending on the CPU.

The balanced profile makes it look like your CPU is really sipping power when idle but during testing, I found that if you want to save power, all you have to do is enable the low power C States like C3/C6 and C7 on the newer 4th Gen CPUs. In the deeper C States, the CPU cores are disconnected from the voltage rail so instead of 0.8 volts, core voltage approaches zero. If the core is not getting any voltage then it really doesn't matter what MHz it is running at so you can leave the minimum processor state at 100%. When idle, cores can spend 99% of their time in C6 or C7. You get the best of both worlds. Excellent off idle response and minimum power consumption. Modern Intel CPUs go from the low power C6/C7 state back up into the C0 working state almost instantly so there is no reason not to use them. Even when gaming or during any application that does not fully load your CPU, your unused cores will be able to disconnect themselves from the voltage rail which reduces power consumption and heat. Many apps do not even come close to fully utilizing a quad core processor let alone a hyper threaded quad core processor so you might as well let the CPU manage itself by turning off the unused parts.

When significantly overclocking, I had problems with stability when using the CPU package C States so on my 3570K, I leave them off. Core C States enabled, package C States disabled.

There is a special version of RealTemp called the T|I Edition which lets you monitor what C States your Core i CPU is using.

https://www.sendspace.com/file/55yvry

http://i.imgur.com/uk94xba.png

You can also use ThrottleStop which was written by the same guy that did RealTemp. (ME)

 

[boskee]

The two things that control your CPU MHz as reported by RealTemp are your C States and your Minimum processor state which can be adjusted in the Control Panel - Power Options.

If you want a constant 4.7 GHz when lightly loaded or idle, the minimum processor state needs to be set to 100% and the C States need to be disabled.

Some users like to use a Balanced power profile when lightly loaded. This profile has the minimum processor state set to 5%. This does not drop the CPU down to 5% but it does let the CPU idle down as much as possible. This will drop the MHz and it will drop the CPU voltage down to about 0.8 volts depending on the CPU.

The balanced profile makes it look like your CPU is really sipping power when idle but during testing, I found that if you want to save power, all you have to do is enable the low power C States like C3/C6 and C7 on the newer 4th Gen CPUs. In the deeper C States, the CPU cores are disconnected from the voltage rail so instead of 0.8 volts, core voltage approaches zero. If the core is not getting any voltage then it really doesn't matter what MHz it is running at so you can leave the minimum processor state at 100%. When idle, cores can spend 99% of their time in C6 or C7. You get the best of both worlds. Excellent off idle response and minimum power consumption. Modern Intel CPUs go from the low power C6/C7 state back up into the C0 working state almost instantly so there is no reason not to use them. Even when gaming or during any application that does not fully load your CPU, your unused cores will be able to disconnect themselves from the voltage rail which reduces power consumption and heat. Many apps do not even come close to fully utilizing a quad core processor let alone a hyper threaded quad core processor so you might as well let the CPU manage itself by turning off the unused parts.

When significantly overclocking, I had problems with stability when using the CPU package C States so on my 3570K, I leave them off. Core C States enabled, package C States disabled.

There is a special version of RealTemp called the T|I Edition which lets you monitor what C States your Core i CPU is using.

https://www.sendspace.com/file/55yvry

http://i.imgur.com/uk94xba.png

You can also use ThrottleStop which was written by the same guy that did RealTemp. (ME)

Excellent information, thanks!!