The post is getting buried, but are you still getting lower speeds with the fresh install?
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Well guys my CPU is still throttling down to 1.6ghz even with SpeedStep and C1E disabled.
No. While the CPU is operating C-States greater than C0 the clock will be stopped and not running at all. Higher than C1 and power saving measures will be taken. When the CPU is woken it is at the LFM and it takes time for the voltage to ramp up before it can switch to the higher clocks. So if CPU-z polls the CPU while in the higher C-State then it reads the LFM before the clock has increased. Latency can be reduced with fixed voltage.It is not supposed to do this.
this is why in High performance mode when you go to advanced settings, it shows
Min Process State 100%
Max Process State 100%
In High Performance Mode the CPU should be running at its full clockspeed 100% of the time
powercfg -setacvalueindex scheme_max sub_processor 5d76a2ca-e8c0-402f-a133-2158492d58ad 1
powercfg -s scheme_maxNo. While the CPU is operating C-States greater than C0 the clock will be stopped and not running at all. Higher than C1 and power saving measures will be taken. When the CPU is woken it is at the LFM and it takes time for the voltage to ramp up before it can switch to the higher clocks. So if CPU-z polls the CPU while in the higher C-State then it reads the LFM before the clock has increased. Latency can be reduced with fixed voltage.
Try this for W7. Open an admin cmd box and enter the following 2 lines.
You can cut and paste to make it easier. This will disable all C-States including C1 (not the same as C1E) so expect high idle temps. Your clocks at idle workload should be maximum 100% unless you have changed the Windows high performance power plan minimum processor state from 100%. To go back to standard enter the 2 commands again but change the 1 to a 0.Code:powercfg -setacvalueindex scheme_max sub_processor 5d76a2ca-e8c0-402f-a133-2158492d58ad 1 powercfg -s scheme_max
If while in this state with heavy load your clocks are dropping to 16x then it is most likely Bi-Directional PROCHOT that is causing it.
ASRock Z77 Pro4 is a z77 board and the 2500k was for a z68 and would only work with a bios upgrade.
ASRock Z77 Pro4 is a z77 board and the 2500k was for a z68 and would only work with a bios upgrade.
Well guys my CPU is still throttling down to 1.6ghz even with SpeedStep and C1E disabled.
ok running Prime95 CPU-Z locks at 4ghz
That might be a bit harsh. The issue the OP raises is whether throttling is normal when "High Performance" is selected, and I have shown that in at least one case (mine) that it may not be. The only machines I have seen this be a problem on are laptops. I didn't think this was a typical desktop problem, tbh.This is all that matters. The OP has strung everyone along on this fairy-tail journey, but the above post is the bottom line.. You can continue to feed the ops need for attention or realize it's been over for quite some time. Approx. 160 posts ago.. :/
I'm done playing the game.. good luck to the rest of you.
This is all that matters. The OP has strung everyone along on this fairy-tail journey, but the above post is the bottom line.. You can continue to feed the ops need for attention or realize it's been over for quite some time. Approx. 160 posts ago.. :/
I saw thru it long ago, but getting op to admit the above was exasperating. I'm done playing.. good luck to the rest of you.
Set_Ignore=Futurefields
ok running Prime95 CPU-Z locks at 4ghz
Well guys my CPU is still throttling down to 1.6ghz even with SpeedStep and C1E disabled.
BD PROCHOTis bi-directional, that is if enabled an external component can set BD-PROCHOT to lower the CPU to the LFM to reduce power. For instance if the VRM was in dire straights with the load demanded it can trigger this pin as long as it needs to reduce the load as a safety measure.Is the contention that the BD PROCHOT feature is sending false positives? Because thermal throttling should not occur unless the CPU gets into a critical range which I thought was 98°C for the 2500K.
Hang on, are you saying that loading the CPU now runs it at normal load multiplier, and that it now only downclocks to 1.6GHz when idle? If so then there really is no problem as that's how most people run their systems and what they're designed to do?...ok running Prime95 CPU-Z locks at 4ghz.
Well guys my CPU is still throttling down to 1.6ghz even with SpeedStep and C1E disabled.
Shot showing EIST set to AUTO:
Shot showing CPU basically idle, but holding at 4.4GHz because power profile is set to "High Performance," also shown. No tricks, no fancy software, just things behaving as they should:
Getting this message when I try to run Throttlestop -
I understand you're annoyed that you can't seem to be able to force 4GHz when idle, but is it still actually affecting performance / games / benchmarks under load, ie, does it throttle down to 1.6GHz under an actual load (you said earlier it was "locked to 4GHz under Prime")? If it's now dropping to 1.6GHz only when you're not doing anything, ie, it's doing nothing more than forcing Speedstep on even on High Perf preset (as if it were on Balanced), I really don't see what the problem is with down-clocking when idle which is what the CPU is designed to do by default.Notice how Crashtec's is running at max clock speed even when idle? ^
THat's how the CPU is supposed to operate when High Performance Mode is enabled.
Mine is still dropping to 1.6ghz with High Performance Mode enabled.