Meanwhile some mosfet on the other side of the board is burning its way out of the keyboard.

Well, effect sensor = data for me and pwm maybe the "clock signal" . :)

@@morphingsomething5203 we normally meet data and clock with i2c serial protocol sda scl, just search 4 pin fan pinout information on internet, glad if you see sda scl instead tacho and pwm.

he say, no replace parts.

@blackartista: lol

This one has two SSD slots plus a HDD. Sorin removed the SSD to troubleshoot. Did you not notice?

That is my concern as well. But even if the regulator fails completely, you always have the 5V supplied by the wire.

Yeah, the faulty part should be removed at least, as it tends to get hot and possibly cause more damage in the future (shorted main power rail, PCB burn e.t.c).

I don't see actually how a corrupt bios can result in this particular fault, but most likely its a hardware issue.

my thoughts exactly... what if he cleared the CMOS ... would that have fixed the problem

fan will always work, something they usually do anyway with that CPU :)

It’s calibrated when he touches it, god you should know this by now

Complaint to KZfaq.

No. It does not work like that. It will work with the highest voltage, which is 5V and what is added are the amps. Example: if the original power source has a maximum of 100mA, and the power source added by Sorin has a maximum of 300mA, in total it can supply 300mA@5V.

Dear, this is a parallel connection, the voltages do not add together

No the power supplies aren't connected serial, they are connected parallel, so only the 5 Volts matter

Nope , consider this 3,3 V is residual from a faulty mosfet so internal resistance from it is higher than 5V power supply which should be much lower. Maybe voltage will increase a little bit or worst will decrease ... In that last case it should creating some problems ...But Sorin tested and fans get 20 mA so not a problem

Shortage of voltage is key cause for error messages

It is necessary to know the right amount of voltage

absence of rpm data (caused by fan not spinning because of too low voltage provided)

There is voltage, but not the correct one. As the fan is not getting the nominal voltage, it will not spin, therefore the computer reads no RPM through the data wire, and displays error. The same error will happen if the fan's blades get stuck.

My HP Omen got 330W power supply. Only one.

It's not about power but laptop didn't want to turn on without original charger (third, sense pin)

@@yoshy2628 you need an entire power plant just to provide power to your laptop.:)))

nah fam, u can't be mad with cheap and quick repair that do the job

If you're too picky, buy a new device😂

He was looking for a chip, which I assume he knows from experience was causing this fault. These are probably one of those special chips which can hardly be bought for replacement unlike the regular mosfets/coils or standard power chips which are used on a more common base and therefore a lot easier to get as a spare part. So even if he found the faulty chip he could most likely not have it replaced since all the big laptop pruducers are protecting their market/products by not sharing whatever components they are using with the rest of the world. The only other solution would have been to send it to a HP repair centre, but they don't do this kind of component level repairs, they just swap out your motherboard for a big chunk of money.

@@ElMariachi1337 Maybe he was joking, but he said he searched for one minute only on one side of the bord. There can be some resistor, or other thinigi between KBC which probably generates this signal. I believe he could easily get the schematic or even boardview, make checking, and repair it correctly or at least remove faulty element that causes voltage drop.

Clearly you do not understand that by adding another voltage in parallel will not be the sum of both voltages, but rather the highest one. So "the broken element" will be at the same voltage.

@@davidlguerr Clearly you don't understand that this way you are doing contiunuse short circuite test, just like using external current source.

@@grzegorzw5042No, because that track is not connected directly to ground...

Zorin made a difference between PWM and "digitally controlled". I don't know how digitally controlled works. Is there a controller on the fan? If it is PWM then a controller is modulating the pulses, and obviously we can not feed that with 5V. Strange that it was 3V if it should be 5V. But the fix worked, didn't it?

@@Drottninggatan2017 if is controlled with PWM or with clock and data, it doesn't matter. probably the EC chip does this. but is just a signal from EC chip. if the fan doesn't have power(5Volt), is not working. also, if it has power but no PWM or clock and data, is also not working. he should took the board out and search where the tracks are going! most likely would found the problem. but, he takes shortcuts.....

@@adaniel69 You are right. Probably there is some faulty element that causes voltage drop to 3V..5V is taken probably directly from main 5V so there is no current limitation. I think in some time something will be burned there.

@@grzegorzw5042 exactly! Maybe liquid damage on the other side of the board....

Yeah he should have taken out the board and inspected the backside visually at least.