z370 voltages

[danlinus84]

Hey, So I have already sought advice after I accidentally gave 1.52v+ to my 8700K. I have since changed the chip for a new one just to be on the safe side.

 

I have been looking up motherboard voltage info. I have found out that the capacitors are usually rated above the voltage needed for the CPU. So for example, I think my board has 6.3v Caps. I also found out something called VCCIN voltage, which is apparently the voltage applied to the CPU before the Internal voltage regulator changes the value fed to the CPU Core. This value is usually a lot higher than the Vcore, something like 1.8v

 

My question is, if the CPU is fed 1.8v anyway, could my 1.52v have harmed the motherboard, if it supplies such voltage values anyway? Obviously not bothered about the old CPU anymore.

 

Hopefully someone is more knowledgeable than me. Next time I overclock I am going to be even more careful than I thought I was being! I just don't want to have to change the motherboard out if I am worrying over nothing!

 

Thanks

[Armakar]

By "Changed it" you returned the chip you screwed up from overclocking to a retailer? Classy..

[danlinus84]

It was the motherboard bios that caused the issue. Apparently it has happened a lot with z370 boards after reading up about it.

[Simon771]

31 minutes ago, Armakar said:

By "Changed it" you returned the chip you screwed up from overclocking to a retailer? Classy..

If it was at 1,5V for few minutes, no harm was done to CPU.

Remember, people are using much higher than those voltages for overclocking records. And those CPUs still work fine.

So 1,5V for few moments isn't a problem.

[danlinus84]

4 minutes ago, Simon771 said:

If it was at 1,5V for few minutes, no harm was done to CPU.

Remember, people are using much higher than those voltages for overclocking records. And those CPUs still work fine.

So 1,5V for few moments isn't a problem.

Thanks Simon. Yeah I know, using LN2! I was under the impression they used like 2v and all the hardware died afterwards and was just used to make a record! I was just inquiring more about the motherboard damage though.. 

[Simon771]

3 minutes ago, danlinus84 said:

Thanks Simon. Yeah I know, using LN2! I was under the impression they used like 2v and all the hardware died afterwards and was just used to make a record! I was just inquiring more about the motherboard damage though.. 

I also tried ASUS 5GHz profile which bumped my voltage to 1,45V ... after I saw that I just turned off my PC since that profile is pure garbage and not even close to being safe.

So yeah CPUs should handle that without any problems as long as you run it for few moments only.

 

Not sure about motherboards but again I don't think that voltage would dammage it. Then again I could be wrong.

[just_dave]

1 hour ago, danlinus84 said:

My question is, if the CPU is fed 1.8v anyway, could my 1.52v have harmed the motherboard, if it supplies such voltage values anyway? Obviously not bothered about the old CPU anymore.

Did the VRM explode? No

You're fine

It can do even higher voltages

[danlinus84]

8 minutes ago, dave_k said:

Did the VRM explode? No

You're fine

It can do even higher voltages

Thanks dave. You seem to know your vrms from your posts :-)

 

What sort of voltages are we talking about?

 

I know they convert 12v from the PSU which is obviously way higher than normal CPU Vcore! But I guess I thought that Vcore could bump up the ma tolerances of VRM's or something, or maybe more likely the heat produced would be more likely to cause damage?

 

Cheers