CPU Vcore " VRM" Section Explained

[@davidasare6841]

Very Instructive. You're doing an awesome job Sir....... Hats off...

[@pslaptopanddesktopservices9825]

Doing awesome work brother...keep going...thanks.

[@dzabakwesi2213]

Thanks for the knowledge sir and the effort in making this wonderful video. Please make more videos

[@FixTronics]

Thank you so much brother

[@Pepe-ry8pm]

Very, very instructive. Thank you !!!

[@GamingXEvolution]

thanks for a good and clear explained in vcore at kbc enable and no vcore and gfx core troubleshoot guide

[@ignacioortiz1445]

Thanks for your great videos

[@jonathanreyes2849]

Sometimes Even when You have all signal, internal dc/dc of vrm are Bad or Open. Replace vrm work if everythings seems fines. Amazing vídeo man. ♥️♥️♥️

[@Envai_Çesit]

Good explanation, you have +1 subscriber. But waiting more videos..

[@FixTronics]

Thanks for your subscription bro.. Sure I will do more videos 👍

[@occazinfo7369]

Simple and very instructive , thank you

[@abihabeeb5758]

Very interesting sir, easy to understand. plz try explain how confirm KBC is fulty & when we replace it ,

[@muhammadqasim-ti9el]

Very Instructive. You're doing an awesome job Sir.But one more things when your hand board you reapir its different things.Have lots of book in internet but particle or in book totally different

[@FixTronics]

Thank you so much brother I will try to do a video as soon as I get a faulty motherboard I am working at home (No shop) and I am not getting much repairs these days

[@xzoli8]

Very goog and understable presentation, keep going, you are awesome but please show us how to measure/check these signals with measurment tools osciloscope, multimeter etc

[@FixTronics]

You are welcome my dear I will make sure to do such a video as soon as I can Thank you for your comment

[@almatsumalmaadi8103]

Well explained bro, keep going 😎👌🏻

[@FixTronics]

Thank you bro I'm glad you liked it

[@Mati420_nasheeeeeeeeee]

oh yeah, very good video and your explain, hello from argentina papaaaaaaaaa

[@FixTronics]

Thanks brother

[@Swenser]

I think it's worthwhile noting the resistance to gnd at CPU vcore can be very low. Around 3ohm can be normal. Don't be trolled to think it's shorted.

[@washingtonchuqui8232]

Very good explanation, thanks for share this information

[@FixTronics]

U R welcome brother

[@luisfreire5724]

que buena explicación, y eso que no se ingles ...se le agradece por los subtítulos

[@FixTronics]

You welcome bro

[@sumuduasiri]

Thanks very much sir. 🙏 Sir is there something SVID communication between VRM chip and the CPU?. Please explain

[@FixTronics]

Yes brother, the SVID is what the CPU use to communicate with the VRM ic to set its voltage. So you will not get the VCore voltage if the SVID lines are interrupted.

[@inwerp]

Well, i usually do not comment on such videos, but there are some points which are worth mentioning. As an example i will briefly describe G531GW mainboard since i have this on the table. VRM Enable signal is generated by SIO chip, in many cases - as ALl_SYS_POWER_GOOD signal alias, this is true. However, there is SVID communication line which is necessary for CPU to release PROCHOT, this is an actual control of CPU voltage. SVID communication is done by System Agent (VCC_SA)part of the CPU which is not even mentioned. To get this signal PCH also needs to be fully booted, which wont be the case if you, say, swapped PCH but you have bootguard, it simply wont release PROCHOT which acts as a second enable signal in this case. This also will be the case if you have corrupt ME region in bios, so swapping CPU in this case would be absoultely useless step. Also, Voltage Divider and Buck converter are completely different things, not even close. Yes, this is true that Buck converter output produces lower voltage, but instead of being static divider (which output is fully depends on consumption which is obviously different if battery is empty/charged) it changes the high frequency PWM signal accourding to set voltage(for example on many charging controllers that would be CELL line which indicates how many cells are in series in battery, for example 11.x volts whould be for 3-cell battery) and feedback line (which tells internal PWM controller, what voltage is actually generated since it will obviously goes down on higher load). Instructional videos are good, but this video is partially misleading, especially if you say "swap the CPU" after skipping most of CPU VCC troubleshooting steps including most obvious one: corrupted bios can easilly cause no VCORE, as well as bad PCH XTAL or bad SIO firmware. For better understanding always look for power sequience which is often could be found in schematics or service manual. If you find none, look for similar platform, or at least, same PCH/CPU board.

[@FixTronics]

Hi Maybe you are right, but you should have thanked me rather than criticizing me. All the information I give is a personal diligence. I haven't had a single lesson on motherboards repair ever. So if you think you are brilliant and genius, why don't you make videos like these so we all can laren from By the way, thank you for your comment

[@inwerp]

@@FixTronics absolutely no reason to take tech.critics personally. I also learned everything by myself and instead of asking me if im genius, you might consider following my advice and check platform power sequence. You cant imagine how many times i was punched in the face by more knowledgable people and thats how i learned most important stuff. Dont be northbridgefix who banned me for politely mentioning that he kills really expensive customer's mainboards on video(check yourself his short killer video, he misunderstands audio amp as a mosfet and injects 3v, that whoops, cpu is getting hot, no fix). Making educational videos does not make you better per se, this simply brings more attention to the details and also thats a responsibility not to mislead peoeple into trashing good boards with corrupted firmware.

[@inwerp]

@@FixTronics since your settings do not allow any links, you can find one in my channel description, you are welcome to check inwerp's contributions on wiki page.

[@toepyaesone6177]

Sir can you explain when "VR_ON"signal released from SIO?Which signals do SIO need to generate VR ON signal?

[@FixTronics]

Hi friend If you check this video 👇🏻 kzbin.info/www/bejne/qp6Zcmlpr9eDr9k I think you will find the answer

[@Alsharafatcomputersolutioni]

Good Tutorial sir

[@shalthia6716]

very informative video thank you sir.

[@KOOS-EDTSOF]

MUCHAS GRACIAS POR ESTA ENSEÑAMSA GRACIAS

[@laptopDoctorKZN]

Please can u make a video explanation of the the newer ic with the mosfets in and logic in it

[@mouseflex]

Hello i see sometimes a low vcore (offset). Why is the reason of this issue? nice videos. You have a new suscriptor!

[@FixTronics]

Hi friend The vcore offset is normally used in CPU Overclocking so its set manually in the bios menus You will find it sometimes called Dynamic VCore ID in the bios menus.. Keep in mind that not all CPU's and not all motherboards support Overclocking

[@logicbearer374]

Thanks it was really educating

[@FixTronics]

You're welcome brother

[@hazem-B-hamada]

hi how the v-sense is out from the CPU if still the Vcore not get out from VRM-controller ??????

[@hazem-B-hamada]

i mean still cpu not getting power from the Vrm-controller ,,,, how the V-sense is getting up ????

[@Swenser]

@@hazem-B-hamada probably part of CPU running off the 3.3v always on power circuit

[@FixTronics]

The CPU gets voltage before VCore I recommend you to watch this video: kzbin.info/www/bejne/rHjOg4N4g9ONjJo

[@jj74qformerlyjailbreak3]

So if my Vcore voltage is floating over 2.4v when its set too 1.3 volts its going be a faulty Fet on the motherboard?

[@jj74qformerlyjailbreak3]

I wanted to just swap the processor too determine if it's the CPU but I don't have another of the same socket

[@techneglankaschool7872]

Nice thanks

[@otheruser1541]

Good job... What about VID signal's...?

[@FixTronics]

I will try to make a video about this subject

[@COMPUTERREPAIRSCHOOL]

hi.kindly reminding about svid signal from the cpu :)

[@FixTronics]

Thank you so much for your comment I really appreciate it

[@COMPUTERREPAIRSCHOOL]

@@FixTronics keep your good work going.many love ❤

[@kavinsadipa]

Great job

[@varia1675]

Thank You Sir, valuable content look forward to the next video!

[@mohammaddahbour2398]

thank you , Can you add each sign how much it is in volts please

[@FixTronics]

I will make sure to mention them next time But its almost every signal is either 3.3v or 5v If you have the schematics then you could find it there

[@kadasofiane7598]

thank you sir

[@MouMouhDS2]

what about desktop motherboard, they work same as laptop ? i dont have cpu vcore on my desktop motherboard my PWM ic has 5 volt EN , i dont know how to check other thing, can you tell me important thing that i cant chuck, thnaks

[@sanashamil6647]

Sir, can you do a video of how to test if the CPU is bad or Not ?

[@FixTronics]

I will try to do so👍

[@madyunussay]

perfect

[@GurjVirdee]

Please can you explain why svid_alert is missing and how to fix ?

[@FixTronics]

I don't have much knowledge about it I am really sorry

[@GurjVirdee]

So then the explanation to the video isn't that helpful then. If you can explain SVID signals then you have a good video.

[@FixTronics]

@Gurjinder Virdee My brother SVID is an interface that communicates with the processor through three wires SCLK, SDIO and ALERT# to control the output voltage of the voltage regulator. Those three signals (SCLK, SDIO, ALERT#) should be pulled high to CPU I/O voltage VTT (which is typically 1.0 to 1.1 V) using some pull-up resistors. So if one or more of your signals is missing then check your pull-up resistors

[@GurjVirdee]

Yes I know all that. Even I can find that explanation on the internet. But it's not only resistors. A bad CPU can also be the cause.

[@marcellizna2974]

Where is vr on the motherboard pc

[@mdmbaki7755]

hello sir do you have any paid video course.

[@FixTronics]

I don't brother I really sorry

[@furkann6774]

turkish language ??

[@FixTronics]

Nope 😁🖐🏻

[@laptopDoctorKZN]

WOW ANAZING

[@eadge1999]

خطك مش واضحة وشرحك بطي المفروض رسمتها بصوره واضحه وشرحت عاليها