Safe Voltage and Temperature?

[KapteinFruit]

Hi guys. I got the i5-750 and I thought I'd try and set my voltage to the max that Intel says is safe (1,40V) and see how high I can get my CPU frequency. I've always wanted to have 4,2GHz which I was able to get with 1,411V which was pretty satisfying. But the temperatures concern me. I'm thinking that it's not a big deal because I'll never hit those temperatures with normal use and gaming. So my max temperature was 81c-77c-73c-74c. Pretty high, I know. I got those temperatures after five rounds with IBT. (Intel Burn Test.) (Oh, and by the way, I don't think my thermal compound is perfectly applied, so if I apply it over again I think I can get my temperatures down a couple of degrees.) So do you guys think that is safe? And when I sat my voltage to 1,40V in my BIOS it was actually set to 1,411V. Is that a big deal? I bet it's not like my CPU will fry at anything above 1,40V, but it's better to be safe then sorry, right?

I'm going to see how far I can get if I get an okay from you guys.

I'll post CPU-Z validations for each "step" up I can get, so if you're interested in those, keep an eye out. I don't think I will be able to get much higher then what I'm at now, though.

Edit: Something weird has happened. HW Monitor Pro says that my temps are at the moment 72c-70c-65c-68c which is significantly lower then what they were my first IBT run. Do any of you guys have any idea why that might be? Oh, it just said my over clock failed. I'll give it another try. Something weird happened there. But I bet it's not stable.

CPU-Z Validation(s):

 

[tinytomlogan]

1.4v is high tbh, what I would do is see what the absolute minimum required for 4ghz is aim for 200x20 as that will give you great dividers for 2000mhz and 1600mhz memory.

You will probably find that at 4ghz (with lower volts) and a remount of your cooler will be fine. 70 - 80c max is about where I would be happy on air tbh and volt wise if you cpu can do it Id aim for 1.35v or less (less the better)

Also remember its not all about the CPU vcore, you will need to tweak other vots to keep the cpu stable at low(er) voltages

 

[KapteinFruit]

1.4v is high tbh, what I would do is see what the absolute minimum required for 4ghz is aim for 200x20 as that will give you great dividers for 2000mhz and 1600mhz memory.

You will probably find that at 4ghz (with lower volts) and a remount of your cooler will be fine. 70 - 80c max is about where I would be happy on air tbh and volt wise if you cpu can do it Id aim for 1.35v or less (less the better)

Also remember its not all about the CPU vcore, you will need to tweak other vots to keep the cpu stable at low(er) voltages

With 200x20 my CPU sits at 3999,8MHz or something and that loks so weird so I've used to have it at 201 so I'm a bit over 4000MHz.

What are the other voltages I should tweak? The only thing I've messed around with is the VCore and PCI MHz thing. Someone told me that you should have it around 104.

I'm going to check what Vcore I got at 4GHz now.

EDIT: So I tried with 200x20 and my CPU kept jumping between 3999,9MHz to 4000,0MHz. A little annoying, but I can live with it if you recommend 200x20 and not 201x20 or something like that.

I had a voltage of 1.30625 in the BIOS, CPU-Z said it was 1.305V and it kept jumping to 1.317V. But Hardware Monitor said minimum was 1.29V to 1.32V. My max temperatures after five rounds with IBT were 71c-68c-64c-65c. The weird thing is that Vdroop is disabled so how can the voltage change? So many different voltages or what? I hope you can help me. Oh, and should I bother remount the CPU cooler now? I can, but I don't really want to be bothered with it right now.

Oh, the voltage is at 1.294V when my CPU is at idle.

EDIT: Take a look: