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Here's what you need to know about measuring voltage on AMD motherboards.
Hey, internet going on with PC World?
Here are Computex 2023 and I have
eight expert on power supplies and all things PC with me.
Eris by the way, you can see his great content over at Hardware Busters.
Go to his channel like subscribe, but I have him here
for a few minutes and I want to ask him about
measuring voltage on AMD motherboards.
It's been a lot of confusing.
Like for me, I don't know what I should look at.
You recently wrote a story on your site
on something called SD I3.
Can you explain to me what that means?
Because I just pull up the utility, I look at it, I see voltage.
Yeah. Where Where's that measured?
How much does that matter?
And should I care about that more? Yeah.
Thank you very much for having me here with you.
So everything.
Imagine that
it's the power management of be you.
The CPU is able to monitor directly the VRM of the main book.
The VMS voltage regulation modules
are the ones that pump power to the supply.
You and all the components of the CPU.
You cannot get directly power from 12 volt for example,
it needs to pass to the VRM splits lower voltage and then that
this voltage is used, this power is used by
this should be your associate and all other components.
The thing now they did it was SBI to SBI.
Their newest generation is basically using
their ryzen 7000 processors allows the processor
when it is lightly used to soft off some of the volumes.
For example, you know, you have heard about father faces
main bolts cup 24 hour phases 2510 doesn't matter.
We call them volumes.
But in essence imagine that this as Morpheus use.
So in
the main book say you have five small business
which fitness their processor saw the processor says I know I don't need
all five use plan at the same time because the energy loss is there.
So I will shut down four of them.
I only use one because you to power me.
I don't need high power.
But why?
Is it because you, for example, alone supply 9 to 5 test?
So he needs all the power immediately.
He stands on all power phases, all those Morpheus used.
So SBIC gives to the processor
this ability to talk to the VRM shut them down.
But it also gives the ability to the CPU to monitor their condition.
Simply, you can check the voltage on the VRM.
It can say, for example,
this VRM doesn't perform that good.
So I to use it so much and this lowest frequency, this is why
false faces and variants are important.
Some people say, Hey, why I should select the good PSU.
You know the of them are followed by the PSU.
If it doesn't deliver clean all that steady all that,
then the victims won't be able to operate at 100%.
And this doubles performance.
Okay. For a plain user, you might not notice
a lot of performance though, but it's there.
So if you want to make a good system, you also have to select the properties.
Your power is everything.
Power is everywhere.
If you understand power like this problem now, like we had,
you know everything about SBIC now
AMD told us
that SLC needs to be at one point the ball.
Okay.
They mentioned after some problems
which I'll say here, okay, it wasn't a mass destruction.
There are some users having that problem
and am did to talk to the public.
Okay. You need 1.3 volt associate.
The thing is that AMD didn't tell us initially
where to measure 1.3 on the VRM.
When you measure on the VRM output till it reaches to the CPU.
So again, there's a voltage drop on the PC businesses.
It didn't tell us if I should measure on the ship
you behind the socket.
We did the know at some point AMD didn't mention that.
Okay guys, you need to measure on the CPU internally.
You cannot do that.
I cannot open the SIP.
You put the probe inside and measure.
So the only way is to allege, Sir AMD provides a hardware
sensor.
It's essential inside this video.
You can read it all. I do, sir.
This is where it's your info comes in
and if you take it's up to you info and you see associate
and SBI fan below 1.3 volts.
We are okay.
You can measure 1.5 once in the VRM.
Okay.
If it's below 1.3
volt SBIC associate, it's fine.
You don't have any problem at all. Okay.
So if I'm regular person again, I just fire up download
info, great utility because you know there's a million readouts for voltage.
The one that I want to know as a regular person
monitor that's 23 and that's that's how I know that's me.
I see.
As I say, yeah, this is the simple use internal sensors.
Now I can argue here, okay.
AMD tells them that
I'm sure that
they do.
I could not.
I cannot.
As an engineer, I can only believe what I can measure with my on the government.
So I have to ask them do
that, do it in there is obsolete.
They want what they say it is, right. Yeah.
And I'm telling you that because I measured some substantial
voltages up between the CPU socket and what they should be inside says,
and this is what troubles me a bit.
But in general, I have walked on all these new license
and be used with expert profile and I have done so many tests
with all the main but biases.
I didn't have any problems far.
I don't find it or that it is something extreme
that if it was something huge, we will see.
Anyway, today it's going over the top.
I know that you also know that this was not the case.
You didn't have access to me, right?
Yeah, there was a problem.
So there was something.
Joining us this morning is a file also, right?
Yeah.
I mean, definitely feels like there's there's more to learn.
You know, we're sort of in the early stages of it and
I don't think I think
part of it is maybe misunderstanding like regular people like me.
And we just we just don't know what what to think of it.
But there definitely weren't a lot of failures with the original problem.
So that's a new socket, the SBI.
So it's a new right to new protocols, a new for AMD.
The just
so it's I believe that such problems can exist.
Okay.
But you have to support the users that face these issues.
Right.
This was it was more a marketing disaster
if you ask me, rather than engineering problems.
Yeah, yeah.
And the same, of course goals for the 49th if you or the melted connectors.
Right.
I told from the start that there's no problem.
They're just the users that were not trained.
Well, you know, I've also faced this issue myself.
You don't care. Click on the Connector.
Yes. You have to go all the way.
And from the first
one, somebody mentioned that I tell them
initially, guys, it is not the problem with the connector.
The problem is that we have to be more experienced in this stuff.
Right. It's a new connector.
I agree with you, because, yeah, it's the first new connector in 15 years.
16 years? Yeah.
We're so used to that big connector.
It's it's large. It makes up noise.
It's going to take a couple of years for people to get used to this.
It's not going to change.
It's not going to go away for total high power.
We just have to get used to make damn sure you push it all the way.
And as long I've been afraid. Yeah.
Instead of having same PCI express cable for four or.
Yeah, right.
Yeah.
Offering you have just one that's only up to three.
But you have to be careful how to use it.
Some people say, okay, I can look it right if you take anything,
if you take any cable and you try to bend it very, very hard,
it will have a problem. Right?
You know, it's
I was thinking it's actually very similar to when we move from PGA to LGA.
Yeah.
Because for the first few years, people were like they would destroy
the motherboard, you know, because they didn't know, realize
they weren't using the LGA pins, they didn't realize how delicate they are.
For the first year,
people continually destroy boards because they weren't used to it.
Yeah, now it's not a big deal and we're kind of like that.
Yeah.
PGA easier to deal with, but ultimately I prefer that.
Yeah.
I mean LGA is there's a real engineering advantage for it.
It's better, denser and all that stuff, but it takes years to get used to it.
So it's kind of similar to that.
And I guess we can almost go back to SGI three here.
We have to, yeah, we have to know where to read it, how to,
you know, get used to it and everybody has it takes, you know, it's industry.
They have
many, many partners and not everybody is on the same page at the same time.
So it takes a while for the assets.
Under the best way to rate it is still it's not going well you cannot do
and a blend usually of one tech is mainboard
like I did have it sideways and probe right?
It's very, very dangerous.
Right.
And I used special bloops to do that
because if you saw something below that should be you used to use that
and the main but probably said so don't do that stop, don't do that
There's a separate but to sum up, I'm a regular AMD person.
I just bought my 7000. I'm freak out.
I downloaded some of you info
I should care only about SGI three if I'm concerned about it.
As I said.
Okay, well, thanks.
Great information.
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