i5 4690k ignoring overclock setting, showing stock speeds?

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I have (well, had) my 4690k overclocked to 4.2ghz that is stable with a voltage of 1.2 (in CPU-Z, 1.3v in BIOS - for some reason 1.2V is the lowest) and all was well til recently I noticed the max clock speed showing up is only 3500mhz, no more even under 100% load.
I have no idea why this is happening, i've redone my OC settings, reset the BIOS default settings and reconfigured, checked every setting to see what might be causing it but to no avail.

The only thing that lets it run at my set overclock is disablinlg Speedstep, but i've always had this on and it functioned perfectly with it on before? I don't want to force that off as i've always used Speed step with my older CPU's for the power saving.

Using an ASRock Z97 Extreme4 motherboard, i'm just completely stumped.
What could be the problem? i've checked windows advanced power settings and everything is set as it was.

Any help much appreciated :confused:
 
Do you have the latest bios (1.30) on your motherboard? If not that could be why this happens because you need that version for Devils Canyon cpu's. You can download it from here, put it on a USB stick and use the flash tool in the bios (instant flash?).
 
Aye I flashed the BIOS I think maybe a couple of weeks ago, though now i'm starting to wonder if that caused it? as I know for a fact the OC I had worked on whatever version the motherboard arrived with.
 
Did you run any benchmarks before your problem started ? If yes, then just do a quick bench now to compare the score. You will know for sure if it's running at 3.5ghz then.
 
Ok so I've tried flashing all 3 versions of the BIOS available for this motherboard, none of them changing a thing.
I also noticed it doens't matter what I set the voltage at, it will always read it as 1.218V.. still stuck at 3.5hz even after disabling various CPU features. It responds to underclocking as when I reduced it to 3ghz it read that in windows, so now I really have NO idea what to do and wondering if something is wrong with my motherboard?
The only other thing I can think to do is install new windows on a partition and see if windows is somehow limiting it? so bloody frustrated with this.

Also to post above, I don't have any records of benchmarks, only used Prime95 for about 10 minutes (not sure if that auto saves logs?).
 
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No I haven't stressed it properly yet, maybe i'm ignorant but I can't see how that would relate to whatever is causing this problem.
 
Try putting all settings back to stock and check speedstep works correctly. i.e clocks down to x16 multiplier when idle.

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When the system works correctly, on everything, then start over-clocking........
 
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It downclocks normally at stock and on overclock, down to x 16 - as it did when the overclock actually applied. Guess i'll try a new install of windows on another partition in the off chance it's something to do with the chipset drivers I installed? only thing I can think of.
 
@op how are you overclocking? leave all turbo ratio's on auto,and just set cpu multi

if it still wont oc then try both all turbo ratio's and cpu multi though ive never had to do that

and it should still oc with all powersaving turned on,re install of windows shouldn't be needed

make sure you pick balanced power saving profile in windows though
 
Left it for a minute and it downclocks to x 8, it shows 8-42 as multiplier here but it never exceeds x 35

10xrodk.png


wazza300 said:
@op how are you overclocking? leave all turbo ratio's on auto,and just set cpu multi

if it still wont oc then try both all turbo ratio's and cpu multi though ive never had to do that

and it should still oc with all powersaving turned on,re install of windows shouldn't be needed

make sure you pick balanced power saving profile in windows though
Click to expand...

Aye I just overclock the CPU multiplier to 42 and everything else is auto, speedstep enabled, turbo boost disabled, BCLK auto (100) and set the voltage to 1.3V which is what worked before. I'll upload a pic of my BIOS in a while.
Did try the CPU cache and turbo multipliers too but still nothing :( that's why I'm so confused, had no issues with it on my old i7-950 and on this for like, the first two weeks or so - only recent 'things' i've done is chipset drivers and update the BIOS to 1.30. Resetting the BIOS by removing CMOS battery wouldn't be any different to flashing it, right? Also set the power options to balanced, with the min/max processor states being at 5/100%.
 
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no it just resets the bios settings

theres an option somewhere in the bios about passing oc onto the os or something like that,makesure that's enabled
 
Couldn't find any such option, if you can find it below then I am completely blind - tediously took pics of all the CPU related options my BIOS has.. beware, there's a few!

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your top screenshot enable intel turbo boost

personally I would use 100 manual bclk and 42x cpu multi

then use cpu offset and try +0.010v

see if that's any better,whats cpu oc fixed mode? presumably to run full speed all the time?
 
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