i7 4790k , tried OC to 4.8ghz and can't boot or get to bios

[Dunzaus]

Hi I tried following Linus Haswell overclocking video and when I tried to set cpu ratio for 4.8 and save and exit then it won't go past the first screen and I can't enter bios either.

 

cpu volt was set at 1.200

 

I have a Noctua nh-d15 cpu cooler

 

I have tried restarted computer many times and those times it go past the first screen then windows says that it will try and repair and has come up with 2 errors: 

 

''windows-driver-overran-stack-buffer''

 

''whea uncorrectable error ''

 

 

Please help

[piemadd]

Just now, Dunzaus said:

Hi I tried following Linus Haswell overclocking video and when I tried to set cpu ratio for 4.8 and save and exit then it won't go past the first screen and I can't enter bios either.

 

cpu volt was set at 1.200

 

I have a Noctua nh-d15 cpu cooler

 

I have tried restarted computer many times and those times it go past the first screen then windows says that it will try and repair and has come up with 2 errors: 

 

''windows-driver-overran-stack-buffer''

 

''whea uncorrectable error ''

 

 

Please help

Did you overclock a little at a time or just stick it right up to 4.8ghz on the first try.

[SeanAngelo]

1 minute ago, Dunzaus said:

Hi I tried following Linus Haswell overclocking video and when I tried to set cpu ratio for 4.8 and save and exit then it won't go past the first screen and I can't enter bios either.

 

cpu volt was set at 1.200

 

I have a Noctua nh-d15 cpu cooler

 

I have tried restarted computer many times and those times it go past the first screen then windows says that it will try and repair and has come up with 2 errors: 

 

''windows-driver-overran-stack-buffer''

 

''whea uncorrectable error ''

 

 

Please help

clear cmos.

 

overclock the cpu in little increments. not straight to 4.8ghz.

[Guest]

Clear CMOS and try at a lower clock

[FunkyFeatures]

Clear CMOS, most motherboards should have a button for that, otherwise pull out the motherboard battery and count to 10 before inserting it again

[Dunzaus]

1 minute ago, Implosivetech said:

Did you overclock a little at a time or just stick it right up to 4.8ghz on the first try.

I tried 4.6 first and it went fine and then i tried 4.8 since linus used a i7 4770k in the video and he went straight to 4.6 to see if it could handle it

[piemadd]

Just now, Dunzaus said:

I tried 4.6 first and it went fine and then i tried 4.8 since linus used a i7 4770k in the video and he went straight to 4.6 to see if it could handle it

Did you ever go to 4.7 ghz?

[Dunzaus]

Just now, FunkyFeatures said:

Clear CMOS, most motherboards should have a button for that, otherwise pull out the motherboard battery and count to 10 before inserting it again

Okay I will try that. I'll post back with my results

[Dunzaus]

1 minute ago, Star Paladin Vinyl said:

Clear CMOS and try at a lower clock

Okay I will try that. I'll post back with my results

[Dunzaus]

Just now, Implosivetech said:

Did you ever go to 4.7 ghz?

No I didn't

[TheRandomness]

2 minutes ago, Dunzaus said:

No I didn't

Not all CPUs can overclock well.

[Dunzaus]

Right, taking out the battery on the motherboard  worked. I tried setting it to 4.7 and it would go to windows and came back with the same errors as before but atleast i could enter BIOS. Then I put it on 4.6 and I could get into windows. 

 

I know that not all CPU's can overclock the same but I feel like the Noctua nh-d15 cpu cooler that I just bought is a waste of money if I can't get higher than this and should just resell it.

 

Isn't really anything that I can do to get higher?

 

My motherboard: Gigabyte GA-Z87x-DH3

 

CPU: 4790k

 

Noctua nh-d15 cpu cooler

 

All I have done so is set voltage to 1.200 and and set the cpu ratio to 4.6-4.7-4.8 , and I can only boot with 4.6

 

 

 

 

[NumLock21]

Not all cpus can achieve a high oc. Your 4.6 is definitely better than those who can only reach 4.5

[FunkyFeatures]

With your Noctua cooler you could probably push 1.3Vcore. I am pushing 1.286Vcore with my Hyper 212 Evo.

Voltage is required to stay stable, I highly doubt even a decent overclocker could reach 4.7 or 4.8 on 1.2vcore.

I would try 4.8, slowly increasing voltage with .01 increments, if 1.2 doesnt work, try 1.25. If it still doesnt work, try 1.3 (wouldn't go higher than that), if that works, slowly decrease voltage by .01

 

My 4790K hit a brick wall at 4.6GHZ, I need to further increase voltage by a whole .075 to reach 4.7, and therefore it is not worth it for me to go higher. It is not the coolers job to promise you high overclock, all it does is aid in temperatures if you reach high voltages.

 

I might eventually go with custom water cooling and try up to 1.35 volt and 4.8/4.9 GHZ, but highly doubt I have any more performance to squeeze out of my CPU, so it is hardly worth it for me to upgrade.

[Imakuni]

23 minutes ago, Dunzaus said:

All I have done so is set voltage to 1.200 and and set the cpu ratio to 4.6-4.7-4.8 , and I can only boot with 4.6

And that's why. 1.2v is too low for 4.8. In fact, even for 4.6 is already pretty good.

 

Bump this up a notch, your cooler can most likely handle it.

[jjohnthedon1]

Ul looking at 1.32 for 4.8 1.26for 4.7

and 1.2 for 4.6 

[Guest]

28 minutes ago, FunkyFeatures said:

With your Noctua cooler you could probably push 1.3Vcore. I am pushing 1.286Vcore with my Hyper 212 Evo.

Voltage is required to stay stable, I highly doubt even a decent overclocker could reach 4.7 or 4.8 on 1.2vcore.

I would try 4.8, slowly increasing voltage with .01 increments, if 1.2 doesnt work, try 1.25. If it still doesnt work, try 1.3 (wouldn't go higher than that), if that works, slowly decrease voltage by .01

 

My 4790K hit a brick wall at 4.6GHZ, I need to further increase voltage by a whole .075 to reach 4.7, and therefore it is not worth it for me to go higher. It is not the coolers job to promise you high overclock, all it does is aid in temperatures if you reach high voltages.

this. You can't simply expect the clock to go up without increasing voltage. 

 

I have a similar experience with my FX - point of the story. When you're reaching the threshold of maximum performance of your chip, the voltage needed is exponentially growing. The relationship between core clock and voltage in exponential, not linear. 

 

I can hit 4.7 (on my FX) at 1.432, but need ~1.48 for 4.8 to be completely stable. This is a huge difference and the temperatures are vastly different. 

[Dunzaus]

59 minutes ago, jjohnthedon1 said:

Ul looking at 1.32 for 4.8 1.26for 4.7

and 1.2 for 4.6 

Thanks I trying 1.26 for 4.7 as we speak and it going fine!

 

Can you tell me the voltages beyond 4.8 to 5.0?

 

I don't think that I should try higher than 5.0 but I could use the voltages for 4.9 and 5.0 as well

 

But let me know if I should try higher than 5.0

[jjohnthedon1]

Just now, Dunzaus said:

Thanks I trying 1.26 for 4.7 as we speak and it going fine!

 

Can you tell me the voltages beyond 4.8 to 5.0?

 

I don't think that I should try higher than 5.0 but I could use the voltages for 4.9 and 5.0 as well

 

But let me know if I should try higher than 5.0

1.35 max voltage just keep going up till I fail but most likely 1.32/1.35 will get u to 4.8 max 

[Dunzaus]

Just now, jjohnthedon1 said:

1.35 max voltage just keep going up till I fail but most likely 1.32/1.35 will get u to 4.8 max 

Okay thanks! <3

[Dunzaus]

49 minutes ago, jjohnthedon1 said:

1.35 max voltage just keep going up till I fail but most likely 1.32/1.35 will get u to 4.8 max 

Yep, 4.8 is my limit.

 

I have tried 4.9 with 1.32 - 1.33-1.34-1.35 voltage and they all crashed after a few seconds in Realbench

 

With 4.8 at 1.33 voltage my temperatures is falling up and down between 68-85 degrees with mostly being the 70's.

 

 

Thanks for your help!

[jjohnthedon1]

4 hours ago, Dunzaus said:

Yep, 4.8 is my limit.

 

I have tried 4.9 with 1.32 - 1.33-1.34-1.35 voltage and they all crashed after a few seconds in Realbench

 

With 4.8 at 1.33 voltage my temperatures is falling up and down between 68-85 degrees with mostly being the 70's.

 

 

Thanks for your help!

That's fine dude ! 

R u using it for gaming ? 

Mans ur real world temps will never got that high  

[Dunzaus]

1 hour ago, jjohnthedon1 said:

That's fine dude ! 

R u using it for gaming ? 

Mans ur real world temps will never got that high  

Yeah I'm using it for gaming. Though I'm mostly preparing my rig for the HTC Vive. I only hope that my R9 290 xfx will be enough so I don't have to upgrade so close to the new generation from nvidia and amd

[mcurran]

You need way more voltage than 1.2V.  Maybe 1.5V at least to be stable for 4.8.  I think I was up to at least 1.65V