Unstable OC !?

[Rmc]

I recently overclocked my gaming rig's GPU, CPU and RAM.
 

The GPU OC went fine...

 

But when i pushed my i5 4690k to 4.5GHz @ 1.2V, and my RAM from 1866MHz to 2133MHz it got unstable.

 

It worked fine with stress testing for a couple of hours but after restart now it crashes/freezes in prime95.

 

Should i roll back the OC and see if it that works, and do anyone have recomendation of how many volts i should give my i5 ?

 

Or is it just the RAM OC that fucked up.

 

 

Sorry for bad english

-Rmc

[Midnitewarrior4]

1 hour ago, Rmc said:

I recently overclocked my gaming rig's GPU, CPU and RAM.
 

The GPU OC went fine...

 

But when i pushed my i5 4690k to 4.5GHz @ 1.2V, and my RAM from 1866MHz to 2133MHz it got unstable.

 

It worked fine with stress testing for a couple of hours but after restart now it crashes/freezes in prime95.

 

Should i roll back the OC and see if it that works, and do anyone have recomendation of how many volts i should give my i5 ?

 

Or is it just the RAM OC that fucked up.

 

 

Sorry for bad english

-Rmc

try to put the ram back to stock, ram can be unstable, if not then slowly increase cpu voltage

[Rmc]

1 minute ago, Midnitewarrior4 said:

try to put the ram back to stock, ram can be unstable, if not then slowly increase cpu voltage

Thanks for quick answer i will try it later or tommorow, i can live with 1866MHz too like its not gonna make that big of a difference. I also just read i should try another stress testing tool becuase Prime95 is not good for Hasswell !? 

[Hackentosher]

I say lose the memory bump. When you overclock your CPU and memory, you can introduce instabilities with the memory controller. Now unless you got the works 4690k on the planet, 4.5ghz at 1.2 is probably fine, maybe 1.25 if your really need it.

[Midnitewarrior4]

1 hour ago, Rmc said:

Thanks for quick answer i will try it later or tommorow, i can live with 1866MHz too like its not gonna make that big of a difference. I also just read i should try another stress testing tool becuase Prime95 is not good for Hasswell !? 

oh yes do not use prime 95 it can fry your cpu.. use aida 64, its what ive been using and it works great

[Bananasplit_00]

OCing the RAM is basicaly raising your base clock(sometimes also refered to as refrence clock) and doing that can make your system unstabile, I have my 4690K at 4.7Ghz just fine at 1.355V (47 multiplier and a slight touch of base clock) but i think you should roll back the RAM OC and then push the CPU, just dont go above 1.4V and preferably not even that

[Rmc]

1 minute ago, Hackentosher said:

I say lose the memory bump. When you overclock your CPU and memory, you can introduce instabilities with the memory controller. Now unless you got the works 4690k on the planet, 4.5ghz at 1.2 is probably fine, maybe 1.25 if your really need it.

Will test later thanks in advance to both of u

 

1 minute ago, Midnitewarrior4 said:

oh yes do not use prime 95 it can fry your cpu.. use aida 64, its what ive been using and it works great

I didnt know aida64 could do that, thanks for letting me know i will not use P95 from now on

[Rmc]

2 minutes ago, Bananasplit_00 said:

OCing the RAM is basicaly raising your base clock(sometimes also refered to as refrence clock) and doing that can make your system unstabile, I have my 4690K at 4.7Ghz just fine at 1.355V (47 multiplier and a slight touch of base clock) but i think you should roll back the RAM OC and then push the CPU, just dont go above 1.4V and preferably not even that

What cooler are u using ? (Im using an H100I)

[Hackentosher]

 

3 minutes ago, Midnitewarrior4 said:

oh yes do not use prime 95 it can fry your cpu.. use aida 64, its what ive been using and it works great

What? How? I've never heard that before.

[Midnitewarrior4]

1 hour ago, Hackentosher said:

 

What? How? I've never heard that before.

with haswel it makes the voltage spike for some reason, its been frowned upon to use p95 for haswell for some time now

[Bananasplit_00]

1 minute ago, Rmc said:

What cooler are u using ? (Im using an H100I)

be quiet Shadow Rock 2, so basicaly a 20cmx20cm(IIRC) cube of aluminum fins with 8 8mm heatpiped through it and a 200mm be quiet fan  its pretty freaking great because its super quiet and temps never go above 70C

[Midnitewarrior4]

1 hour ago, Hackentosher said:

I say lose the memory bump. When you overclock your CPU and memory, you can introduce instabilities with the memory controller. Now unless you got the works 4690k on the planet, 4.5ghz at 1.2 is probably fine, maybe 1.25 if your really need it.

ya i run my 4690k at 4.3 with 1.128 volts just fine, i put it to 4.5 on that voltage and it did not like it tho, couldnt even get in bios, had to jump the clear cmos pins to get my pc to boot... si i might try 4.4 when i have time to mess around

[Hackentosher]

1 minute ago, Midnitewarrior4 said:

with haswel it makes the voltage spike for some reason, its been frowned upon to use p95 for haswell for some time now

Oh yeah, I think I remember hearing about that. But how can a piece of software within an operating system call for more voltage than set by the motherboard?

[Bananasplit_00]

3 minutes ago, Hackentosher said:

 

What? How? I've never heard that before.

P95 can kill your CPU because it will push to much volts aparently, i have just stayed away because of that

 

[Bananasplit_00]

1 minute ago, Hackentosher said:

Oh yeah, I think I remember hearing about that. But how can a piece of software within an operating system call for more voltage than set by the motherboard?

well you can do it with Intel extreme tuner for example, so why wouldent p95 be able to? i think all i needs is Admin permission to do it

[Hackentosher]

2 minutes ago, Bananasplit_00 said:

well you can do it with Intel extreme tuner for example, so why wouldent p95 be able to? i think all i needs is Admin permission to do it

I guess now I can say I learned something at school today  

[Bananasplit_00]

1 minute ago, Hackentosher said:

I guess now I can say I learned something at school today  

perfect

[jj9987]

9 minutes ago, Hackentosher said:

Oh yeah, I think I remember hearing about that. But how can a piece of software within an operating system call for more voltage than set by the motherboard?

Prime95 is using AVX/AVX2 instructions which can force CPU to have higher voltage then specified in the BIOS.

[Teddy07]

If possible use the preset OC for the RAM because RAM instability is hard to detect.