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Does voltage matter when overclocking?

laushik
By laushik
in CPUs, Motherboards, and Memory
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Posted

I know this might seem really noobish but why would CPU voltage matter? If you have extremely good cooling does it matter what you set you CPU vcore to as long as it's not going above the safe temps?

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    I7 6700K Overclocked to 4.6 GHz at 1.33v
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Posted

voltage is 'fuel' to reach a higher GHz overclock.not enough voltage causes system instability causing the system to crash under loads.

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Yea because after a certain voltage you'll need liquid nitrogen to cool it xD

Everyone should own a vive.

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Posted
2 minutes ago, laushik said:

I know this might seem really noobish but why would CPU voltage matter? If you have extremely good cooling does it matter what you set you CPU vcore to as long as it's not going above the safe temps?

CPU voltage matters because thats how much electricity you are sending to your CPU, having too little voltage will not run the system and it will crash, and having too much could possibly kill your CPU or your whole system. That's why people say when you overclock, never put the voltage above 1.4volts. Also good cooling and voltage come in hand, because those are the limitations when overclocking.

AMD Ryzen 7 7800X3D | Sapphire Pulse AMD Radeon RX 7900XT Triple Fan | G.Skill 32GB 2x D5 6000

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Posted
3 minutes ago, laushik said:

I know this might seem really noobish but why would CPU voltage matter? If you have extremely good cooling does it matter what you set you CPU vcore to as long as it's not going above the safe temps?

It matters about as much as gas matters to a car...

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1 minute ago, imreloadin said:

It matters about as much as gas matters to a car...

This thing doesn't need gas or diesel. Also, Tesla exists too.

BBwXayt.jpg

Come Bloody Angel

Break off your chains

And look what I've found in the dirt.

 

Pale battered body

Seems she was struggling

Something is wrong with this world.

 

Fierce Bloody Angel

The blood is on your hands

Why did you come to this world?

 

Everybody turns to dust.

 

Everybody turns to dust.

 

The blood is on your hands.

 

The blood is on your hands!

 

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9 minutes ago, airdeano said:

voltage is 'fuel' to reach a higher GHz overclock.not enough voltage causes system instability causing the system to crash under loads.

 

9 minutes ago, MANIDY inc said:

Yea because after a certain voltage you'll need liquid nitrogen to cool it xD

 

9 minutes ago, Apollo Refugio said:

CPU voltage matters because thats how much electricity you are sending to your CPU, having too little voltage will not run the system and it will crash, and having too much could possibly kill your CPU or your whole system. That's why people say when you overclock, never put the voltage above 1.4volts. Also good cooling and voltage come in hand, because those are the limitations when overclocking.

 

9 minutes ago, imreloadin said:

It matters about as much as gas matters to a car...

So for example if I put my CPU at 1.45v but my temps never go above 75c it wouldn't damage my CPU right?

System

  • CPU
    I7 6700K Overclocked to 4.6 GHz at 1.33v
  • Motherboard
    Asus Z270 PRIME - A
  • RAM
    GSKILL RIPJAWS V DDR4 16GB 3000MHZ
  • GPU
    MSI GTX 1070 GAMING X 8G overclocked to 2063 MHZ and 8900 MHZ memory clock
  • Case
    NZXT S340 RED
  • Storage
    WD 1TB BLUE AND SAMSUNG EVO 250GB SSD
  • PSU
    EVGA 650W GQ
  • Display(s)
    LG 25UM58-P ULTRAWIDE and LG 29UM58-P 29 ULTRAWIDE
  • Cooling
    CORSAIR H100I GTX
  • Keyboard
    CORSAIR K70
  • Mouse
    LOGITECH G502 PROTEUS SPECTRUM
  • Operating System
    Windows 10 PRO
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Posted
3 minutes ago, laushik said:

So for example if I put my CPU at 1.45v but my temps never go above 75c it wouldn't damage my CPU right?

Prolonged high voltage can cause degradation of the CPU which you can notice overtime if your overclock starts failing out of nowhere when it was stable before. What CPU is it?

11 minutes ago, Drak3 said:

This thing doesn't need gas or diesel. Also, Tesla exists too.

You know what I mean....don't be so pedantic lol.

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1 minute ago, imreloadin said:

You know what I mean....don't be so pedantic lol.

 

tumblr_m4guex7A2k1r0mqjz.gif

Come Bloody Angel

Break off your chains

And look what I've found in the dirt.

 

Pale battered body

Seems she was struggling

Something is wrong with this world.

 

Fierce Bloody Angel

The blood is on your hands

Why did you come to this world?

 

Everybody turns to dust.

 

Everybody turns to dust.

 

The blood is on your hands.

 

The blood is on your hands!

 

Pyo.

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1 minute ago, imreloadin said:

Prolonged high voltage can cause degradation of the CPU which you can notice overtime if your overclock starts failing out of nowhere when it was stable before. What CPU is it?

It's not a specific CPU. But wouldn't good cooling prevent degradation?

System

  • CPU
    I7 6700K Overclocked to 4.6 GHz at 1.33v
  • Motherboard
    Asus Z270 PRIME - A
  • RAM
    GSKILL RIPJAWS V DDR4 16GB 3000MHZ
  • GPU
    MSI GTX 1070 GAMING X 8G overclocked to 2063 MHZ and 8900 MHZ memory clock
  • Case
    NZXT S340 RED
  • Storage
    WD 1TB BLUE AND SAMSUNG EVO 250GB SSD
  • PSU
    EVGA 650W GQ
  • Display(s)
    LG 25UM58-P ULTRAWIDE and LG 29UM58-P 29 ULTRAWIDE
  • Cooling
    CORSAIR H100I GTX
  • Keyboard
    CORSAIR K70
  • Mouse
    LOGITECH G502 PROTEUS SPECTRUM
  • Operating System
    Windows 10 PRO
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  •  
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Just now, laushik said:

It's not a specific CPU. But wouldn't good cooling prevent degradation?

Cooling does not make the circuitry/transistors within the CPU more durable to higher voltages unfortunately.

Sure you can do it but you're playing with fire at that point.

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8 minutes ago, laushik said:

 

 

 

So for example if I put my CPU at 1.45v but my temps never go above 75c it wouldn't damage my CPU right?

the damage will still be done, 1.45volts is still a lot and dangerous. 

AMD Ryzen 7 7800X3D | Sapphire Pulse AMD Radeon RX 7900XT Triple Fan | G.Skill 32GB 2x D5 6000

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The more electricity you put into the CPU the hotter it gets. Putting unnecessary voltage = unnecessary heat. However high voltage is necessary for higher clock speeds.

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20 minutes ago, Drak3 said:

This thing doesn't need gas or diesel. Also, Tesla exists too.

BBwXayt.jpg

Hydrogen powered?

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2 minutes ago, Apollo Refugio said:

the damage will still be done, 1.45volts is still a lot and dangerous. 

 

To my understanding, having extreme voltages won't affect the CPU as long as it stays cool. Problems only occur when there es excess heat, causing stuff to melt, short circuit, and break. However, excess voltage will hurt non cooled components like capacitors.

 

Disclaimer: the high voltage may hurt the transistors in the CPU, which have a limited lifespan.

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Just now, KCmetro said:

Hydrogen powered?

Yup, it's an experimental US military vehicle that might replace the HumVee.

Come Bloody Angel

Break off your chains

And look what I've found in the dirt.

 

Pale battered body

Seems she was struggling

Something is wrong with this world.

 

Fierce Bloody Angel

The blood is on your hands

Why did you come to this world?

 

Everybody turns to dust.

 

Everybody turns to dust.

 

The blood is on your hands.

 

The blood is on your hands!

 

Pyo.

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3 minutes ago, KCmetro said:

Hydrogen powered?

It is used for sneaking behind enemy lines :) .

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2 hours ago, laushik said:

 

 

 

So for example if I put my CPU at 1.45v but my temps never go above 75c it wouldn't damage my CPU right?

Have in mind that your MB has to deal with the  voltage too. 

CPU i7 6700k MB  MSI Z170A Pro Carbon GPU Zotac GTX980Ti amp!extreme RAM 16GB DDR4 Corsair Vengeance 3k CASE Corsair 760T PSU Corsair RM750i MOUSE Logitech G9x KB Logitech G910 HS Sennheiser GSP 500 SC Asus Xonar 7.1 MONITOR Acer Predator xb270hu Storage 1x1TB + 2x500GB Samsung 7200U/m - 2x500GB SSD Samsung 850EVO

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