Turning off "Intel Default Settings" with Microcode 0x129 DISABLES THE VID/VCORE LIMIT
Summary
TLDRIn this video, Buildzoid explores the implications of Intel's default settings on the 129 microcode for 13th and 14th generation CPUs, particularly focusing on the voltage limits set to 1.55 volts for safety. He discusses the potential risks of disabling these settings, which can lead to higher voltages and instability, especially with Gigabyte motherboards. The video offers advice on how to manage voltage settings manually for those who don't trust Intel's defaults, while also criticizing the complexity and lack of clarity in Intel's CPU design and motherboard vendor configurations.
Takeaways
- 😀 The video is a follow-up to a previous one about the Intel microcode 129 and its effects on CPU stability and voltage settings.
- 🔧 The BIOS on the Gigabyte Z790 AORUS Master X with an Intel 14900 K CPU is set to version F7F, which includes the microcode 129.
- ⚠️ Intel's default settings in the BIOS limit the CPU core voltage to a maximum of 1.55 volts, which is considered safe for long-term use by Intel.
- 🤔 The video raises the question of whether 1.55 volts is indeed low enough to be safe for long-term use, given Intel's extension of warranties for 13th and 14th gen CPUs.
- 🛠️ For those who do not trust Intel's default settings, the video suggests adjusting the advanced voltage settings on Gigabyte or Asus motherboards to set a custom voltage limit.
- 🚫 Disabling Intel's default settings can lead to higher voltage spikes, potentially damaging the CPU, and is not recommended unless the user knows what they are doing.
- 📊 The video demonstrates that with Intel's default settings turned off, the CPU can experience voltages higher than 1.55 volts, which can cause instability.
- 💻 The video shows that certain workloads, like Cinebench 15, may crash due to the voltage settings, while others, like White Cruncher, may still run.
- 🔬 The script mentions the issue with the AC load line being set too low by motherboard manufacturers, which can cause CPU crashes under high loads.
- 🧩 The video discusses the complexity and issues with Intel's CPU power delivery and clock management, suggesting that it is unnecessarily complicated.
- 🎁 The video concludes with a reminder to update the BIOS to the latest version that includes the microcode 129 and to use Intel's default settings for stability.
Q & A
What is the main topic of the video?
-The video discusses the implications of turning off Intel's default settings in the BIOS for the 129 microcode on a Gigabyte Z790 ORS Master X motherboard with an Intel 14900 K CPU.
What is the microcode version mentioned in the video?
-The microcode version mentioned in the video is 129.
What does Intel's default setting in the BIOS do?
-Intel's default setting in the BIOS limits the core voltage to a maximum of 1.55 volts.
Why did Intel extend the warranties for 13th and 14th gen CPUs?
-Intel extended the warranties for 13th and 14th gen CPUs, possibly to address concerns about voltage limits and long-term CPU stability.
What is the alternative to Intel's default settings if you don't trust them?
-If you don't trust Intel's default settings, you can go into advanced voltage settings and set a custom voltage limit through internal VR control on Gigabyte or Asus motherboards.
What is the recommended custom voltage limit if you don't trust Intel's defaults?
-The recommended custom voltage limit if you don't trust Intel's defaults is 1.4 volts, which should not drastically reduce performance on non-KS CPUs.
What happens if you turn off Intel's default settings on a Gigabyte motherboard?
-Turning off Intel's default settings on a Gigabyte motherboard removes the voltage limiter, potentially leading to instability in certain all-core workloads due to the motherboard's default settings.
What is the issue with Gigabyte's default settings for the CPU?
-Gigabyte's default settings set the AC load line to 0.4 milliohms, which is too low and can cause the CPU to not get enough voltage and crash during high current loads.
Why does the video suggest not turning off Intel's default settings unless you know what you're doing?
-The video suggests not turning off Intel's default settings because doing so removes the voltage limit and leaves the system unstable, especially if the motherboard vendor's settings are not properly configured.
What is the video creator's opinion on Intel's handling of CPU stability issues?
-The video creator believes that Intel's handling of CPU stability issues is inadequate, suggesting that they do not thoroughly test their products and that the platform is unnecessarily complicated.
What additional content does the video creator plan to make about the topic?
-The video creator plans to make another video explaining what AC and DC load lines are and how they interact with the motherboard's voltage regulator.
Outlines
🛠️ BIOS Settings and CPU Voltage Concerns
Buildzoid discusses the implications of Intel's default settings in BIOS, particularly the voltage limit of 1.55 volts for the 14900 K CPU. He questions the safety of this voltage for long-term use, referencing Intel's warranty extension for 13th and 14th gen CPUs. He suggests that adjusting the voltage limit to 1.4 volts through advanced settings on Gigabyte or Asus motherboards can prevent performance degradation without instability. The video also touches on the potential risks of not trusting Intel's settings and the consequences of turning off their default settings, which can lead to higher voltage spikes and CPU damage.
🔋 Understanding Voltage Regulation and Stability Issues
The script delves into the technical aspects of CPU voltage regulation, focusing on the differences between Intel's default settings and Gigabyte's BIOS optimizations. It highlights the instability caused by Gigabyte's settings, particularly the low AC load line of 0.4 milliohms, which can lead to voltage crashes during high-load scenarios. The video demonstrates this with Cinebench 15, which fails to run due to voltage issues, contrasting with White Cruncher, which runs despite heavy all-core loads. The narrator also mentions the complexity of Intel's boost table and the challenges of diagnosing CPU instability without proper voltage monitoring tools.
🚫 The Risks of Disabling Intel Default Settings
This paragraph emphasizes the risks associated with disabling Intel's default settings, which remove the voltage limiter and can result in higher voltages that may damage the CPU. The narrator warns that motherboard manufacturers' default settings might not be optimal, leading to instability in certain workloads due to improper load line configurations. He suggests that users who are unsure of their technical expertise should avoid turning off Intel's default settings, as this could result in an untested undervolt and potential CPU crashes in specific scenarios.
📉 CPU Degradation and the Impact on System Stability
The final paragraph addresses the broader issues surrounding CPU degradation and system stability. The narrator speculates on the number of users who may unknowingly experience system crashes due to CPU instability, attributing this to a lack of thorough testing by Intel. He also expresses frustration with the complexity and lack of clear documentation from Intel, which has led to a confusing situation for users trying to maintain system stability. The video concludes with a reminder to update BIOS and a suggestion to set a custom voltage limit if one does not trust Intel's default settings.
Mindmap
Keywords
💡BIOS
💡Microcode
💡Intel Default Settings
💡Core Voltage
💡Voltage Regulator
💡VRM (Voltage Regulator Module)
💡Load Line
💡Cinebench
💡Prime95
💡Thermal Velocity Boost
💡Silicon Lottery
Highlights
The video discusses the impact of turning off Intel default settings on the BIOS of a Gigabyte Z790 ORS Master X motherboard with an Intel 14900 K CPU.
Intel default settings limit the core voltage to a maximum of 1.55 volts for safety during long-term use.
Intel has extended warranties for 13th and 14th gen CPUs, suggesting confidence in their voltage limit settings.
Disabling Intel default settings can lead to voltages exceeding 1.55 volts, potentially damaging the CPU.
Gigabyte and Asus motherboards allow for custom voltage limits in advanced settings for users who don't trust Intel's defaults.
Setting a custom voltage limit to 1.4 volts can prevent the CPU from exceeding this voltage without drastically reducing performance.
The video demonstrates that with Intel default settings off, the CPU can become unstable and crash during certain workloads.
Gigabyte's default settings may cause the CPU to undervolt during high load, leading to crashes, even on new CPUs.
The video explains that motherboard manufacturers' default settings can lead to instability due to improper load line configurations.
The presenter suggests that not all CPUs will crash with default motherboard settings, indicating the 'Silicon Lottery' effect.
The video shows that Cinebench 15 cannot run with Gigabyte default settings due to voltage instability.
White cruncher, a memory bottleneck test, can run despite Cinebench's failure, highlighting the inconsistency of voltage stability.
Prime 95 can run with Gigabyte default settings, but the CPU hits a low power limit, causing low voltages and clocks.
The AC load line set by Gigabyte is too low compared to the motherboard's VRM, causing instability during certain workloads.
The video warns against disabling Intel default settings without understanding the implications on voltage regulation.
The presenter plans to create another video explaining AC and DC load lines and how they interact with the motherboard's voltage regulator.
The video concludes with a recommendation to keep Intel default settings enabled unless the user is knowledgeable about voltage settings.
Transcripts
hey guys buildzoid here and this is
hopefully just going to be a quick
followup to the previous video about the
ox1 129 micro code because it occurred
to me that I didn't bother to show what
happens if you turn the Intel default
settings off so here we are in the BIOS
on the gigabyte uh z790 ORS Master X I
have the 14900 K in there and the BIOS
version uh is f7f and you can see that
the micro code is
129 um right like right there micro code
129 version
f7f um but anyway um so we're just going
to and with the Intel default settings
turned on uh this um like Limits The
Core voltage to a maximum of 1.55 volts
and it does that so it works
now is 1.55 volts low enough to be safe
for long-term use I like I can't know uh
right like Intel seems to think so and
they did announce that they're extending
the warranties for 13th gen and 14th gen
CPUs so it would be pretty stupid of
them if they uh didn't set the voltage
limit low enough and then extended the
warranties because that means they're
going to be rep you know like cuz you
know if they just slow the degradation
down um they might still end up having
to replace a bunch of CPUs in like 2
years anyway so that would have not
really achieved anything um but yeah
yeah so I don't know for sure um now if
you don't trust Intel uh if you have a
gigabyte or an Asus motherboard what you
can do is you can just go into advanced
voltage
settings um internal VR control and turn
this on and then down here you can set a
custom voltage limit um if you set this
to, 1400 at least on anything that isn't
a KS this won't really drastically
reduce your performance and it'll stop
the CPU from ever going above 1.4 volts
um so yeah but that's if you don't trust
intel if you do trust Intel um which
admittedly at this point is quite kind
of a you know question potentially
questionable thing to do
um you can just you know you just leave
the Intel default settings turned on and
everything is fine um at least if your
CPU already hasn't degraded to the point
that it is unstable uh even with the
Intel default settings um so if you like
install this latest bios and your CPU is
still crashing you should just RMA the
CPU um because yeah if if your CPU
doesn't work on Intel default settings
even on the like extreme profile of
Intel default settings your CPU is
degraded to the point that it's
defective um now uh if you turn the
Intel default settings off uh you get
this lovely warning about how you're
potentially going to damage your CPU um
which is probably for the best but uh
yeah you just get put on the the good
old gigabyte uh CPU optimizations which
do such things as uh actually we can't
see it right now well we'll just see it
in in Windows so we'll just
restart um with any luck we'll see a
voltage Spike of more than 1.55 volts
before we even get into Windows or like
get to the desktop I should say like it
it usually like it can happen while
Windows is just booting up um because
the issue is with the Intel with the
gigabyte
optimizations uh one of the things
gigabyte does is that they set the AC
load line to 0.4 milliohms the default
load line on the voltage regulator of
this motherboard is 1.1 milliohms which
basically means that in all core loads
or high current loads the CPU will not
get enough voltage and crash uh and this
is in like and this will happen even on
brand new CPUs that aren't degraded
right so the fact like your CPU not
being stable with your motherboard's uh
like gigabyte default settings or Asus
default settings that is not an
indication
that your CPU has degraded that's just
an indication that motherboard
manufacturers don't know how to read a
spec sheet
um though the funny thing is that the
way they can't like the this is
technically an undervolt what gigabyte
is doing um which is why it crashes in
high load and for single like the the
funny thing is it's as a as far as like
single core load this undervolt isn't
actually very effective reducing uh low
core count like
voltages um so yeah it it's still like
you can you still get very high voltage
spikes with like the gigabyte default
settings they're just less High than if
they were following the actual like
Intel spec with some of the other uh
gigabyte optimizations like this this
platform has too many like the way Intel
decided to implement these CPUs in terms
of like power delivery and clock
management is just dumb as far as I'm
concerned because it's unnecessarily
complicated like TVB is not an extension
of the Boost table it's a uh leash to
like rain in the stupidity that is the
top of Intel's boost table which is just
like why would you do that why
why but anyway um so the side effects of
of this is like so now that we're on the
gigabyte settings if I try to run C
bench 15 um
I can't because it
crashes um also you'll notice that
already on the oscilloscope we're at 1.5
uh yeah 1.56 volts um which if you have
the Intel default settings turned on
that will simply not happen the voltage
will not go above 1.54 volts in my
experience at least with this board some
other boards might behave somewhat
differently
um so yeah so cinebench won't run but
funnily enough you might think like oh
well will white cruncher run well white
cruncher funnily enough will run though
that might be just because it's very
memory bottleneck right
now if we intentionally stop the
workload while it's running I'm trying
to like intentionally cause it
to spike oh there we go
1.57 um you'll also notice that like
white cruncher which is a pretty heavy
allcore load um yeah this runs while cin
bench
doesn't um
so that's kind of fun
um yeah now the reason for this
instability and unfortunately I don't
have a way to check the voltage
regulator oh wait this is only sensors
oops I want the full system
summary or not summary I want like the
full system
read
out so the reason why now it like why
now the CPU is unstable with the
gigabyte settings is because with the
gigabyte settings if we scroll down
to uh where is it AC load line You'll
see that the AC load Line is now set to
0.4 milliohms um and the motherboard's
vrm is actually set to 1.1 mohms so when
we try to run cine bench the voltage
gets too low and cinebench
crashes um but certain other workloads
are potentially just fine I wonder
wonder if I have
a I mean I guess we could try Prime
95 um it's not something I've tried
before
but with the like gigabyte defaults so
I'm not entirely sure what we're going
to
see but yeah we'll just try small
ffts and
um yeah it doesn't seem to be
crashing right so that that's like CU
when you run Prime 95 the
CPU uh right so like I can't run
cinebench but I can run Prime 95 cuz
when we run Prime 95 the CPU actually
hits the 280 wat power limit um and the
voltages are very low and the clocks are
very low like we're at just 5 GHz right
so this is the thing is like the this
platform like there are multiple
different problems one of them is that
like well you have the degradation which
is caused by the excessive voltage spike
in like load transition and low load
scenarios which is Intel's fault because
they just wrote a like like the way they
generate vid voltages is just completely
insane um so that's what the ox1 129
micro code is fixing but it only fixes
that if you actually use the Intel
default settings if you don't use the
Intel default settings that be like that
fix is gone um so yeah if you don't know
what you're doing I would highly
recommend that you do not turn off the
Intel default settings cuz it will take
off the voltage limiter and then you're
at the mercy of whatever your
motherboard vendor did uh which is
often worse cuz you'll have like
instability in certain allore workloads
because the load lines aren't configured
are configured to be too high V Dro
relative to what like you basically get
a massive untested undervolt right out
of the box if you lost the Silicon
Lottery your CPU will crash in some
workloads not all workloads because just
yeah um so it's really not like this
that this is the thing that's been
annoying me with this whole situation is
like we have like there was the thermal
velocity boost issues you have the
voltage Spike issues you have the
excessive AC like load line undervolting
from the motherboard vendors like
there's like three different problems
that they've been like that have been
getting like progressively
fixed
um and it's just like like I don't think
nobody like they just don't test
anything at Intel it's just you know
they make CPUs and they sell them but
they don't test them um cuz testing
costs time and
money which apparently money is
something that Intel no longer has um as
we've recently find out found out so
yeah so that's that's just that's it
that's all I wanted to show is just yeah
if you you if
you update to the latest bios that has
the ox29 micro code you do have to use
the Intel default settings in order to
get that voltage limit um to work CU if
you turn off the Intel default settings
that voltage limit goes away now maybe
some vendors somehow like have a way of
keeping it in place but at least on
gigabyte it just disappears the moment
you turn off Intel default settings and
your core voltage is happily going to go
back up to you know 1.58 volts in this
case but with some CPUs and I guess if
your CPU doesn't like the funny thing is
like for me the easiest way to trigger
the excessive voltages is cinebench 15
but my CPU can't run cinebench 15 with
the gigabyte default settings however if
you win the Silicon Lottery um you do
get some CPUs that can run cin bench 15
with the with the gigabyte default
settings and if you use and in those
cases maybe you'll see even higher
voltage spikes than what I'm seeing
right so
like this is just yeah like this this
whole thing is just a mess because this
entire platform is a mess
um and uh like here we are and you know
what what's been kind of bugging me is
like I wonder how many Intel
users just kind of lived with the fact
that their system randomly
crashes so I like I do wonder if we're
like not seeing the full picture of how
widespread this is because some people
just think like oh the game is bad when
it crashes or it's the NVIDIA drivers
when the game crashes or it's you know
uh like it's just buggy software when
the the thing crashes um when it's like
nope that's probably your CPU
crashing um because the thing is like
the CPU ultimately like sort of handles
everything that happens on the system so
if the CPU is unstable everything is
unstable
um but uh yeah so anyway if you have a
gigabyte motherboard update to the
latest bios don't turn off the Intel
default settings unless you know exactly
what you're doing um and if you don't
trust Intel you can go into the advanced
voltage settings now I'm not 100%
certain that this necessarily works on
every motherboard the Intel VR voltage
limit um I've heard from some people
that it like doesn't necessarily work on
every board but at least on the boards
using the Rena sauce vrm controller uh
yeah you can just set an arbitrary
voltage limit so if you're paranoid or
you just don't trust Intel at this point
which probably is a you know correct
stance to have with Intel at this point
you can set the voltage limit to 1.4 or
even less than that but personally I
would probably just go to 1. .4 um cuz
um yeah like OB like I can't know if 1.4
is safe but I kind of supect that 1.4 is
probably more than enough to be safe um
cuz like a lot of the CPUs out there in
the wild have to have been running way
over 1.4 very regularly and the
degradation
isn't that fast right like it's it's
taken quite a lot of time for some
people to to degrade their CPUs so
um yeah anyway um that's it so thanks
for watching uh hopefully you found this
somewhat interesting and or useful I
will be also doing another video going
into like what exactly is AC and DC load
line and uh like the vrm load lines on
these uh on on well this motherboard I
might also do that for some other well I
don't know if I want to do that for
other boards I don't really find this
topic particularly interesting cuz this
is just like look if you wrote better
document we wouldn't be here like this
isn't that hard write a damn spec sheet
um anyway um but yeah I do want to do
another video just like going over what
ACDC load line does and how like it
interacts with the actual motherboard's
uh voltage regulator um and like how can
you adjust the actual Vol vrou of the
motherboard itself um but uh yeah so
that's it for this video uh thanks for
watching uh if you'd like to support the
channel I have a patreon if there's like
a band camp link there's also the
teesprings store where there's like
shirts and hoodies and posters so yeah
I'd really appreciate it if you'd check
those out and that's it for the video so
thanks for watching and goodbye
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