is my i5 4670k a crappy one

[eziowar]

i5 4670k batch l312b553
mobo gigabyte z87x ud3h bios f7
corsair cs650m
hyper 212x
windows 8.1

so i did not tried overclocking 1 year from buying. but today when i tried by only changing the vcore and cpu clock ratio , i did not get stability even in a 5 minutes stress test in Intel(R) Extreme Tuning Utility while i set vcore to 1.2 and cpu clock to 4 ghz. even over 4.3 ghz my pc did not even booted. so my question is did i get a crappy i5 4670k and if so then how can i rma my cpu? what cause should i tell to Intel during rma? what is the chance of getting brand new cpu in rma from intell? please help me asap and any suggetion is most welcome . is there any time limit from buying date for rmaing the cpu? my cpu's warranty is of 3years.

 

[lazyboy947]

i dont think u can rma a working cpu just because it wont overclock well..... did u try a higher voltage? If it runs at stock clocks no problem then, intel will most likely see nothing wrong with the cpu. Did u try the gigabyte easy tune to have the board auto overclock? If it takes more voltage to hit 4ghz then u have a poor overclocking 4670k

 

[Andrew Murdoch]

Your CPU functions the way it was intended to, attempting to RMA a CPU just because it does not overclock well will be a failure. Intel will test the CPU, confirm it is running properly and then send it back to you, as well as charging your for the carriage.

 

[eziowar]

Your CPU functions the way it was intended to, attempting to RMA a CPU just because it does not overclock well will be a failure. Intel will test the CPU, confirm it is running properly and then send it back to you, as well as charging your for the carriage.

thank you for replying . even when my cpu is in turbo without overclocking, automatically the vcore reaches 1.22. so i manually set the vcore to 1.2. one more weird thing that except real temp any other monitoring software can't show temps of all 4 cores and only show single core temp. also only task manager shows l1 l2 l3 cache size properly but any other software can't . But those problems was not there earlier . Is it something to worry about ?

 

[eziowar]

i dont think u can rma a working cpu just because it wont overclock well..... did u try a higher voltage? If it runs at stock clocks no problem then, intel will most likely see nothing wrong with the cpu. Did u try the gigabyte easy tune to have the board auto overclock? If it takes more voltage to hit 4ghz then u have a poor overclocking 4670k

thank you for replying . the gigabyte easy tune auto overclock got upto 4.3 ghz only and over that boot failed . but even i use 1.15 vcore in turbo 3.8ghz my system is completely stable with even extreme memory profile of 1600mhz with 9.9.9.24. is it harm full to use such low vcore for 3.8ghz ?

 

[Andrew Murdoch]

Your CPU functions the way it was intended to, attempting to RMA a CPU just because it does not overclock well will be a failure. Intel will test the CPU, confirm it is running properly and then send it back to you, as well as charging your for the carriage.

thank you for replying . even when my cpu is in turbo without overclocking, automatically the vcore reaches 1.22. so i manually set the vcore to 1.2. one more weird thing that except real temp any other monitoring software can't show temps of all 4 cores and only show single core temp. also only task manager shows l1 l2 l3 cache size properly but any other software can't . But those problems was not there earlier . Is it something to worry about ?

To what programs are you referring?

There are numerous you can use, I personally use CPU-Z, CoreTemp 1.0 RC6 and hwinfo64. You will be referred to other programs, at the end of the day it comes down to personal preference.

If the default Intel Turbo Mode clocks your CPU to 3.9Ghz (please correct if wrong) at the voltage you mentioned, 1.22v, to achieve higher than that you will require more voltage initially. Start at 1.3v and try to get stable at 4.2Ghz under Prime95 SmallFFT/ Intel Burn Test for at least an hour.

Once that stability has been achieved, with appropriate <80c temps, you can start tweaking the voltage down to its lowest stable level, probably somewhere around 1.25v. Do this by reducing 0.005v at a time from 1.3v.

Overclocking is all about finding your system "sweet spot".

Hope this helps!

 

[CTurbo]

Start small. disable turbo, set the multi to 39 and test it. It should be fine at stock voltage. If that works, try it at 40 and test again. If that fails, bump the voltage one increment at a time testing each time until stable. Then try 41 and repeat the previous steps. Then 42, etc...

 

[gerr]

You say your are unstable at 4.0Ghz @ 1.22v, well try bumping the vcore up slowly until your CPU gets stable, but don't go beyond 1.29v. Also, watch your heat as bumping the vcore will increase the heat. If you can find a stable clock & vcore, then you can try bumping up the clock & vcore from there until you find a happy balance between heat & speed.

 

[Andrew Murdoch]

Start small. disable turbo, set the multi to 39 and test it. It should be fine at stock voltage. If that works, try it at 40 and test again. If that fails, bump the voltage one increment at a time testing each time until stable. Then try 41 and repeat the previous steps. Then 42, etc...

You say your are unstable at 4.0Ghz @ 1.22v, well try bumping the vcore up slowly until your CPU gets stable, but don't go beyond 1.29v. Also, watch your heat as bumping the vcore will increase the heat. If you can find a stable clock & vcore, then you can try bumping up the clock & vcore from there until you find a happy balance between heat & speed.

Please take into account Vdroop. If Windows says 1.22v@load @stock it will require a higher setting in the bios to obtain this when set manually, probably closer to 1.25v. Which would then indicate an OC of 4.2Ghz would require closer to 1.3v in the bios.

The solution CTurbo posited is perfectly viable as it is also about finding your system sweet spot, either way you should take it incrementally and carefully.

 

[eziowar]

Your CPU functions the way it was intended to, attempting to RMA a CPU just because it does not overclock well will be a failure. Intel will test the CPU, confirm it is running properly and then send it back to you, as well as charging your for the carriage.

thank you for replying . even when my cpu is in turbo without overclocking, automatically the vcore reaches 1.22. so i manually set the vcore to 1.2. one more weird thing that except real temp any other monitoring software can't show temps of all 4 cores and only show single core temp. also only task manager shows l1 l2 l3 cache size properly but any other software can't . But those problems was not there earlier . Is it something to worry about ?

To what programs are you referring?

There are numerous you can use, I personally use CPU-Z, CoreTemp 1.0 RC6 and hwinfo64. You will be referred to other programs, at the end of the day it comes down to personal preference.

If the default Intel Turbo Mode clocks your CPU to 3.9Ghz (please correct if wrong) at the voltage you mentioned, 1.22v, to achieve higher than that you will require more voltage initially. Start at 1.3v and try to get stable at 4.2Ghz under Prime95 SmallFFT/ Intel Burn Test for at least an hour.

Once that stability has been achieved, with appropriate <80c temps, you can start tweaking the voltage down to its lowest stable level, probably somewhere around 1.25v. Do this by reducing 0.005v at a time from 1.3v.

Overclocking is all about finding your system "sweet spot".

Hope this helps!

thank you for replying . i always preferred hwinfo64. but since 3 or 4 months hwinfo64 and many other like OCCTPT, Intel Processor Diagnostic Tool 64bit, does not giving right info (although i used all updated and previuos versions) about my cpu but before 3 or 4 months they worked perfectly . only real temp show temps of all 4 cores .

 

[eziowar]

Start small. disable turbo, set the multi to 39 and test it. It should be fine at stock voltage. If that works, try it at 40 and test again. If that fails, bump the voltage one increment at a time testing each time until stable. Then try 41 and repeat the previous steps. Then 42, etc...

thank you for replying . I have seen that others getting 4.3 ghz stable at only 1.2 vcore. so i think my cpu is not worthy of overclocking and i will stay with only turbo until any bottleneck causes by my cpu. though any more suggestions are most welcome.

 

[eziowar]

You say your are unstable at 4.0Ghz @ 1.22v, well try bumping the vcore up slowly until your CPU gets stable, but don't go beyond 1.29v. Also, watch your heat as bumping the vcore will increase the heat. If you can find a stable clock & vcore, then you can try bumping up the clock & vcore from there until you find a happy balance between heat & speed.

thank you for replying . I have seen that others getting 4.3 ghz stable at only 1.2 vcore. so i think my cpu is not worthy of overclocking and i will stay with only turbo until any bottleneck causes by my cpu. though any more suggestions are most welcome.

 

[eziowar]

Your CPU functions the way it was intended to, attempting to RMA a CPU just because it does not overclock well will be a failure. Intel will test the CPU, confirm it is running properly and then send it back to you, as well as charging your for the carriage.

thank you for replying . even when my cpu is in turbo without overclocking, automatically the vcore reaches 1.22. so i manually set the vcore to 1.2. one more weird thing that except real temp any other monitoring software can't show temps of all 4 cores and only show single core temp. also only task manager shows l1 l2 l3 cache size properly but any other software can't . But those problems was not there earlier . Is it something to worry about ?

To what programs are you referring?

There are numerous you can use, I personally use CPU-Z, CoreTemp 1.0 RC6 and hwinfo64. You will be referred to other programs, at the end of the day it comes down to personal preference.

If the default Intel Turbo Mode clocks your CPU to 3.9Ghz (please correct if wrong) at the voltage you mentioned, 1.22v, to achieve higher than that you will require more voltage initially. Start at 1.3v and try to get stable at 4.2Ghz under Prime95 SmallFFT/ Intel Burn Test for at least an hour.

Once that stability has been achieved, with appropriate <80c temps, you can start tweaking the voltage down to its lowest stable level, probably somewhere around 1.25v. Do this by reducing 0.005v at a time from 1.3v.

Overclocking is all about finding your system "sweet spot".

Hope this helps!

thank you for replying . I have seen that others getting 4.3 ghz stable at only 1.2 vcore. so i think my cpu is not worthy of overclocking and i will stay with only turbo until any bottleneck causes by my cpu. though any more suggestions are most welcome.

 

[CTurbo]

Your i5 is not going to bottleneck anything and you wouldn't even be able to tell the difference between 3.9ghz and 4.3ghz anyway. Don't stress over it.

You should at least try what I said though.

 

[eziowar]

Your i5 is not going to bottleneck anything and you wouldn't even be able to tell the difference between 3.9ghz and 4.3ghz anyway. Don't stress over it.

You should at least try what I said though.

thank you. here many solutions are great. is there any way to pick several solutions as good ?