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Manual Cpu Voltage Power Consumption ?

Deza3000

By Deza3000,
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Deza3000 Proficient

Deza3000

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Hey guys, just Oced my 4790k to 4.7GHZ which only seems to be stable at a constant voltage set manually rather than one set by an offset. Wondering if this will result in a heavy amounts of power usage?? I couldn't find a straight answer on google, so thought id ask here, im sure theres a few tech savvy people ;)

Oh and also, will the constant voltage degrade the chip??

Voltage = 1.28v

temps max = 77c during stress test

idle - 28-33c

During GTA V = 69 c

Speedstep is enabled.

Cheers guys!

Edited by Deza3000
«Cyph3r» Experienced

«Cyph3r»

Posted
Posted

Anything under 1.3V is considered safe for regular use of an i7.

The stock voltage of one of the 4790K variants is actually 1.273V @ default clocks.

1.28V is good (lower than average voltage) for a stable 4.7ghz OC on the 4790K.

You can expect a higher power draw at overclock than stock, but maybe not as much as you would expect.

Taken from Anandtech (http://www.anandtech.com/show/8227/devils-canyon-review-intel-core-i7-4790k-and-i5-4690k/2)

3%20i7-4790K%20OC.png

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Deza3000 Proficient

Deza3000

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Posted

Anything under 1.3V is considered safe for regular use of an i7.

The stock voltage of one of the 4790K variants is actually 1.273V @ default clocks.

1.28V is good (lower than average voltage) for a stable 4.7ghz OC on the 4790K.

You can expect a higher power draw at overclock than stock, but maybe not as much as you would expect.

Taken from Anandtech (http://www.anandtech.com/show/8227/devils-canyon-review-intel-core-i7-4790k-and-i5-4690k/2)

Oh too easy! Thats everything i wanted to know :) Cheers for that mate!

T-Rex Enthusiast

T-Rex

Posted
Posted

What setting are you using to adjust CPU voltage in the Bios? Normally adjusting the CPU core voltage manually to say 1.28V will mean a variable voltage with a maximum of 1.28V. I would suggest lowering the clock to 4600MHz and using the CPU core voltage adjustment to set voltage. My CPU is a dodgy clocker, It takes 1.3V for a stable 4600MHz clock

Below are my overclock settings for what was stable for a month until I changed settings higher.

EIST: OFF

Turbo: OFF

CPU Multiplier: 46

Base Clock: 100

Core Voltage: 1.3V

I overclocked my memory too but no need to list that as yours will likely be different.

My highest stable settings so far are as follows;

EIST: OFF

Turbo: OFF

CPU Multiplier: 49

Base Clock: 100

Core voltage: 1.44V

VCCIN Voltage: 2.2V

CPU SA Voltage: 1.2V

I just De-Lidded my 4790K and I immediately went back to square one with overclocking. It would not load at over 4600MHz so I'm in the process of overclocking to 4900MHz again!

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