I7 4790K @4,7 Ghz 1,35 Volt

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Stipan

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Sep 25, 2015
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Is 1,35 Volt too much for the i7 4790K?

I am using an AIO Cooler from NZXT. Its called NZXT X61 and has 2x 140 cooler.
My Mainboard is the MSI Z97M Gaming.

My Temps at 100% Load are about 55 centigrade.

My Temps at normal Load:
V917ZgD


Heres a picture of CPUZ
tE6LEAI


Thanks for the help!
 
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ChumP

ChumP

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Sep 16, 2014
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No , the safe voltage limit is somewhere around 1.3 V , so don't try to add even more volts.
As I see the temperatures are great in full load.
You should run Prime95 for 24 hours , just to make sure everything is stable.

P.S: Your CPUZ picture does not appear on the site.
 
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jakegroves

jakegroves

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Jan 31, 2015
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Good temperatures, BUT, don't go above 1.3v for everyday use. You will fry it in future.
You can reach 4.5ghz on no more than 1.1v
Doesn't matter on the temperature. The fact your at that voltage you can almost watch your chip slowly die :p
Try reach 1.25v max but keep it above 4.5ghz if you plan to use this cpu everyday for a while :)
Moreover between 4-5ghz you will feel hardly no difference in gaming performance.
I would personally play it safe and go with healthy voltage but nice clock :)
 
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jakegroves

jakegroves

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it is safe ... try get 4.5ghz on maybe 1.25v much safer, but it is within the safe voltage , but its at the high end so yano .... but run prime95 overnight to make sure.
 
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jakegroves

jakegroves

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how does software cause damage to CPU's, PSU's, GPU's ? Pretty sure its impossible.
Stressing your CPU under bad voltages and high temperatures is what will damage it.
IF in the first few mins orhour you get high temperatures e.g. 80-90 celsius is when you know your system is not stable, then you adjust.
Malfunctions within prime95 couldn't cause damage
 
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synphul

synphul

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Mar 11, 2011
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Recent versions of p95 due to the way it's coded and the way the haswell chips handle avx instructions cause it to place an unrealistically high load on the cpu. It results in higher temps and yes, can cause the cpu to apply more voltage than it ordinarily would. For haswell/devil's canyon, v26.6 small fft's are recommended. Asus realbench would be a better stress test, p95 suitable for thermal testing.

http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

My suggestion would be to lower the vcore to 1.3v or less for everyday use, even if it means dropping from 4.7 to 4.6. The extra 100mhz won't be missed and the voltage will be a lot less (as will heat). Different chips overclock differently so it may be that your particular chip won't do 4.6 at anything less than 1.3v . You'll just have to play with it and make minor adjustments while retesting with stability stress tests to find the vcore sweet spot.
 
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jakegroves

jakegroves

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That's alot better check for stability. It is worth the less clock for chip durability ;) good luck
 
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