Intel God's "Quick & Dirty" OC Guide to 4.4Ghz with Haswell

[Y0GI]

D3AD_PIX3L, why are you pushing cache multiplier? It gives very little performance wise. But hits stability quite bad. Just leave it at 34-35 and only push CPU multiplier. When you get 4.4GHz stable on CPU, you could start pushing cache if you want.
Changing 1 variable at a time will make overclocking much easier 😉

Sorry I guess I should have mentioned that I had tested lowering my cache multiplayer to see if I could achieve 4.4. Even at 35 I couldn't get it stable. I have googled it few times, but what do you guys think about the max vcore voltage? I have it at 1.32 to get it to 4.3, wondering if going to 1.33-1.35 would be bad for the chip? Since I am already hitting 84c on Prime95 am I at my thermal limit?

I would say that you're at your limit. My personal max setting for Vcore is 1.300 v., this is based on what I've read in several Haswell OC stories. Intel recommends no more than 10% over stock, which I think would be about 1.245 v.

Yogi

 

[airplanegeek]

Ya. I currently have my 4670K @ 1.31 Vcore. Wouldn't dare to go too much higher. And also, did you try increasing cache voltage?

 

[DeltaRecon2552]

Nah. You got 10 more degrees on that chip. Mine claws at 95c on 1.23 vcore. 1.35 is the limit though.

 

[rove90]

What is the max you can go on cache voltage? is 1.3 safe?

 

[Y0GI]

What is the max you can go on cache voltage? is 1.3 safe?

IIRC, back on the first page of this thread, the recommendation was for 1.250 v. max, but in my BIOS the readings turn to red if I select 1.200 or more, so I think that MSI engineers feel that 1.200 v. should be the "safe" limit.

Yogi

 

[rove90]

What is the max you can go on cache voltage? is 1.3 safe?

IIRC, back on the first page of this thread, the recommendation was for 1.250 v. max, but in my BIOS the readings turn to red if I select 1.200 or more, so I think that MSI engineers feel that 1.200 v. should be the "safe" limit.

Yogi

ok thanks

 

[rove90]

What is the max you can go on cache voltage? is 1.3 safe?

IIRC, back on the first page of this thread, the recommendation was for 1.250 v. max, but in my BIOS the readings turn to red if I select 1.200 or more, so I think that MSI engineers feel that 1.200 v. should be the "safe" limit.

Yogi

Another question. Why wont my cache voltage listen to me? I set it at 1.200 but it says 1.2416 in grey text. Pls help me before i punch it! 🙁

 

[Y0GI]

What is the max you can go on cache voltage? is 1.3 safe?

IIRC, back on the first page of this thread, the recommendation was for 1.250 v. max, but in my BIOS the readings turn to red if I select 1.200 or more, so I think that MSI engineers feel that 1.200 v. should be the "safe" limit.

Yogi

Another question. Why wont my cache voltage listen to me? I set it at 1.200 but it says 1.2416 in grey text. Pls help me before i punch it! 🙁

You need to change your Cache Voltage Mode from Adaptive (or Auto as the case may be) to "Override".

Yogi

 

[rove90]

What is the max you can go on cache voltage? is 1.3 safe?

IIRC, back on the first page of this thread, the recommendation was for 1.250 v. max, but in my BIOS the readings turn to red if I select 1.200 or more, so I think that MSI engineers feel that 1.200 v. should be the "safe" limit.

Yogi

Another question. Why wont my cache voltage listen to me? I set it at 1.200 but it says 1.2416 in grey text. Pls help me before i punch it! 🙁

You need to change your Cache Voltage Mode from Adaptive (or Auto as the case may be) to "Override".

Yogi

Forgot to say i already set it on override. it doesnt help.

Also whatever i do i cant get it to run prime95 on 4.4. It simply just reboots when i start the test no bsod. But i can run xtu fine it seems.

 

[Y0GI]

Forgot to say i already set it on override. it doesnt help.

Then dial in some negative offset voltage: -0.0416 v.

Also whatever i do i cant get it to run prime95 on 4.4. It simply just reboots when i start the test no bsod. But i can run xtu fine it seems.

Check Windows Event Viewer to see if it gives you any clues as to why it reboots. It may just be an unstable OC though.

Yogi

 

[airplanegeek]

I have Cache at 40x and 1.28V

 

[DeltaRecon2552]

Here are my settings.
Core Mulit: 42
Core Volt: 1.23 Adaptive
Cache Multi: 40
Cache Volt: 1.25 Adaptive
DRAM Frequency: 2133 (OC'd from 1866)
Stable over night on Prime and Max temp was 95c

 

[airplanegeek]

Here are my settings.
Core Mulit: 42
Core Volt: 1.23 Adaptive
Cache Multi: 40
Cache Volt: 1.25 Adaptive
DRAM Frequency: 2133 (OC'd from 1866)
Stable over night on Prime and Max temp was 95c

95 seems a bit too high for me. The most i'd let it run is around 90

 

[DeltaRecon2552]

I'm thinking about RMA-ing it cause it is a terrible Overclocker.

 

[Y0GI]

I'm thinking about RMA-ing it cause it is a terrible Overclocker.

I agree that 95*C. is too hot, especially for overnight.

Try reducing your RAM speed to 1600 MHz and see if that will improve your results.

Yogi

 

[DeltaRecon2552]

Is this to help my temps or help entire overclock?

 

[Y0GI]

Is this to help my temps or help entire overclock?

Both.

Yogi

 

[DeltaRecon2552]

Alright. I'll try it when I get home. When I first did my overclock it was set to 1333 and I've pushed it from there because I'm out of options to improve performance.

 

[chargeit]

I'm thinking about RMA-ing it cause it is a terrible Overclocker.

Don't stress test using Prime95. Use Aida64. Both Intel, and Asus says this. Aida64 is the only reliable source for stress testing Haswell CPU.

I'd listen to the builders, and major mobo sellers over "Some random internet guy".

I'd crash prime95 right now in about 2 min, yet I'm Aida64 stable, and my benchmarks "approved ones" have gone up. I've been on the current OC for 4 or so days now without a hitch.

Listen to intel/asus, don't use intelburn or prime95. To be honest, you shouldn't of used the stress test you already did. 95 is not a good temp to run these CPU at.

 

[DeltaRecon2552]

For daily functions my temps are 60- but I will certainly try Aida64. Any other tips? I might get a water block for my birthday.

 

[DeltaRecon2552]

What temps should I look for on Aida?

 

[chargeit]

What temps should I look for on Aida?

I wasn't seeing high temps when running all of the suggested tests. (run all tests, excluding hdd and GPU).

From what I read, these chips start throttling between 95 - 105c. However, you shouldn't run them past 85c for extended amounts of time. So, I'd try and keep it sub-85c, if you care about the longevity of your chip.

From what I saw, Aida was maxing out at 70 or 80c (But was running much lower). It wasn't high, but, I think it was more representative of real world usage. (I didn't save the results, but, it wasn't high, max of 80c maybe, normal in the 60's)

I'm still rock solid with this current OC, and the system performance feels great (you can feel if a system is super unstable if you ask me). Even though, I'd fail prime95 in no time.


I'd also suggest you use "Asus RealBench" for bench marking.

 

[Asthenia031]

Well thanks for the solid Guide my first Intel oc has gone extremely smooth, however haven't tried to push it any further don't really feel the need to at the moment

http://gyazo.com/c8adbf9e716aaadc2739da66ac9417dc

 

[DeltaRecon2552]

Are the temps lower than Prime?

 

[Asthenia031]

Are the temps lower than Prime?

Would you like me to retest using prime ?