Manual Cpu Voltage Power Consumption ?

[Deza3000]

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 May 14, 2015 by Deza3000

[«Cyph3r»]

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)

[Deza3000]

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]

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!