My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

[piernov]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

CPU VCore present but GPU VCore not present means BIOS not POSTing. Either because it is not loading at all (you could see that with an oscilloscope on BIOS ROM data pin), or a component fails to initialize. It could be many things, so it is hard to diagnose. A POST card may help as @ktmmotocross suggested. It could still be BIOS corruption, even if it does not happen that often.

[German112]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Ich bin tomorow a News BIOS chip anderen Check it...

Have an idea Is not it when the graphics card is really broken? Dad the notebook still work with the intel hd graphic card? Or is a black screen?

[piernov]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Ah sorry this model has an eDP mux, so the dedicated GPU is probably turned off in BIOS, and the Intel integrated GPU is used.
So the relevant voltage to check is VCCGT which goes to the CPU to power its integrated GPU.
Also SYS_PWROK should come up if the power rails are working.
On page 96 of the PDF you can see on the bottom how the PWRGD signals are linked together, and check if any is missing.

[pyry]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Check the PU14 that you have 2.5v output
The coils PL8, PL6, PL5, PL4, PL15, PL16 etc ... that have voltages at their outputs

[German112]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Hey Pyry, the Coils have :

PL8 = 0,00V
PL6 = 0,00V - 0,01V
PL5= 0,00V
PL4= 0,00V
PL15= 0,00V
PL16= 0,00V
PL14= 3,39V

WITH POWER ON

I Hope this is ok =P

[pyry]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Measure on each of those coils with relation to ground and see if you have a short

[German112]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Sorry stupid question, can they tell me how I can measure the exact? And what values? Or short circuit (beep)?

[German112]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

On U40 and U42 The GPU Vbios Chip i have no Voltage?! only 0,02V on 1 Pin ?!

[pyry]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

With your multimeter measures on the scale of ohms the coils
PL8 = 0.00V
PL6 = 0.00V - 0.01V
PL5 = 0.00V
PL4 = 0.00V
PL15 = 0.00V
PL16 = 0.00V
And on the coil you have the lowest resistance there is the short

[German112]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Okay thank you, I test this evening. According to my measurements is there a defect correct? So one of these must be defective? And could be the problem for my broken notebook? If it works again, I will retaliate with you

[German112]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Hello, I have another question. Can I measure the coils also in the soldered condition?

And which setting on my multimeter must I take? Mega OHM Kilo OHM ?!

Do I check the components on ground or red on one side and black on the other?

What values should I be able to read?

[jasko_jacker]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Hello, I have another question. Can I measure the coils also in the soldered condition?

And which setting on my multimeter must I take? Mega OHM Kilo OHM ?!

Do I check the components on ground or red on one side and black on the other?

What values should I be able to read?

In this case to check if a coil is short to ground (0<measure<1.8 ohm)
you should set your multimeter on 200 ohm .
This type of measurement only on power off without battery.
black probe on ground and red on one side of the coil, after if you find a short , depends on the situation you have to desolder one side of the coil to isolate the short. Short occurs when in a circuit the resistence (its measure is the Ohm) between ground and a tension is near to 0, in this case the tension assume value near 0 volt but the amperage is near the max that the
generator can provide. But in this situation I don't think there is a short because usually a circuit goes in protection and the power goes off, probably
a tension is missing. As Piernov wrote, you shoul check a PWRGD (powergood) a signal that when is present indicates that certain component (like cpu) work properly.

[German112]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Hello, I now have chamois what Piernov has proposed page 96
I have taken a photo and written the data in vllt can someone tell me if there is an error or that is okay

Thanks to all those who help me

[jasko_jacker]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Seems to be an issue on SYS_PWROK_R , read voltage on R270 no ground side that is always 0 volt, and pin 12 on U25D pag 96 or U62A pin 124 ITE IT8587 pag 97.

[German112]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

Hello, so on PIN 12 I have 3.38Volt
And Pin 13 has 0.00V


And ON PIN 124 i Have 3,38V Look at the Picture PLS

Have a photo taken is correct the occupancy as I have measured?

Does this mean that this chip is defective? Or is the problem somewhere else?

[jasko_jacker]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

U25A_B_C are AND port in series , this means that to obtain an OUT voltage on pin 11
U25D both pin 12 and 13 must be hight (3.3 v). In this case if pin 13 is 0 volt no voltage out from pin 11.
We start from U25C, as you wrote, ALL_SYS_PWRGD U25C pin 10 is hight 3.38 v (repeat measurement on this pin) so to have hight on U25C OUT pin 8 , DELAY_PWRGD must be hight = 3.3 v, measure this pin (pin 9 U25C). If there is a missing voltage the problem reside in other place and not in ITE chip because we have a right out from it.
Power off notebook and measure in ohm (200 ohm on tester) , red probe on pin 13 U25 and black on ground

[jasko_jacker]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

this is the right situation all IN pin on U25 must be 3.3v

[jasko_jacker]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

this is the right situation, all 3.3v on U25 IN pins
Write on this image the value you read on U25 pin 4,5_9,10_12,13

[piernov]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

German112's measurements are ok.
R269 is no stuff. VCORE_PG is there on one pad (as we could already predict since VCore is there and OK).
VCCGT_PG is *not* there on the other pad.

I'm not sure why VCCGT would not come up though…

Anyway, check voltage on PL22, and pin 2, 3, 4, 5, 7 and 12 of PU10
Also check resistance between PL22 and ground.

[jasko_jacker]

Re: My Lovely Clevo P650rp6-g No Picture and CPUand GPU Stay Cold...

But SYS_PWROK_R is 0v it should not be hight ?
and pin VCCGT_PG is 0 volt it should not be hight ? Otherwise how can pin goes hight to send 3.3 volt on PM_PCH_PWROK ?