MSI GE62 6QF MS-16J41 not reacting to power button

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

I have bought the exact schematic.
https://www.badcaps.net/forum/showpo...14&postcount=5
Now I can go and measure everything.
Next I will check BATLOW# signal to see if it is prevents the the PCH to go to S5->S4->S3->S0

Now that I have an exact schematic I remeasured some places:
+ AC_PRESENT - 3.4V
+ BATLOW# is 3.35V so something is wrong with the powers. I guess I remesure everything on VSUS and always on voltages.

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

+3vsus seems to be intermittent.
After pressing power button 3,4v appears for 4 seconds, then it disappears then comes back, then disappears again. Does this 2 times before board shuts off.
TPS51225CRUKR PGOOD signal is stabil 3.36v all along.
Any ideas?

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

RTCVCC - 3.17
INTRUDER#, 2,7
RTCRST# 3.17v
SRTCRST# 3.17v
I found a broken resistor on R457 (45.3KR1%0402 )
I will replace it but i dont know if this will solve the problem.

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

Replaced, R457 and no change, BUT....
I have discovered that SUSCLK is present but the board is missing the
X_32.768KHZ 12.5p_S-RH-21 crystal. It makes sense that its not booting.
I think I have one from a G551JM board .

Are they interchangeble with any 32.768 crystal?

[mon2]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

These are common jellybean (clock crystal) parts. Just replace it and test it. It should be fine.

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

These are common jellybean (clock crystal) parts. Just replace it and test it. It should be fine.

Thanks, I be back after replacing it.

[piernov]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

I have discovered that SUSCLK is present but the board is missing the
X_32.768KHZ 12.5p_S-RH-21 crystal.

No stuff, SUSCLK derived from Y5.

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

No stuff, SUSCLK derived from Y5.

Thanks, I go forward...
Any idea?

[mon2]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

Look for a crystal Y5. Is it on the board?

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

Look for a crystal Y5. Is it on the board?

Yes but not seeing any voltage on any side. (Y2 missing has 3.3 in the incoming line)

Also measured some sequence points:
RTCVCC - 3,1V
RTCRST - 3,1v
PWR_SRC - 19,7V
+3VALW - 3,31V
+5VALW - 5,02V
PWR_SW# - 3,31V (WHEN power button pressed, it goes to 0v for second, then rises back to 3.31v)
SUS_ON - 3,30V after pressing power button
+3VSUS - 3,39V after pressing power button (NOT FLUCTUATING)
+5VSUS - 5,14V after pressing power button (NOT FLUCTUATING)
SUSPWROK - 3,34V after pressing power button
RSMRST# - 3,30V after pressing power button
SUSPWRACK - 0,55V BEFORE Pressing power button. goes down to 0.44V until power button is held.
SUSCLK - 3,39V
AC_PRESENT - 3,39V
PM_PWRBTN# - 3,31V
PM_SLP_S5 - 0V
PM_SLP_S4 - 0V (when accidentaly shorted to 3.3v then it goes up to 3.3v and holds it (power button blue led begins to blink slowly))
PM_SLP_S3 - 0V

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

More measurements:
Y5 both pin is OL resistance to ground!
Y2 (pin #1 is 649Kohm , Pin #2 is OL)

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

SLP_SUS is also OL to ground all the time!
Where to go next?

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

Also noticed that someone removed the PCH glue from the corners so it is probably messed with.

[rediii]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

Also noticed that someone removed the PCH glue from the corners so it is probably messed with.

have had a similar problem with an asus gaming board. pch/soc was dead...

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

have had a similar problem with an asus gaming board. pch/soc was dead...

Should I try to reheat the PCH to be sure it is not just a cracked Solder joint, or should I take it right away to a local repair shop and replace PCH instead?

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

Digging Further into the problem I found intel documentation about the chipset here:
https://manualzz.com/doc/o/knhf9/int...address-ranges
It seems all the floating pins are in one quarter of the PCH (Top View – Lower Right) Page 92

Maybe it is worth a careful reheat. Anyone has other idea?

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

I really dont want to reheat the PCH if not necessary.
I'm out of my knowledge here but I want to learn what could be causing this.
Top of the PCH I have measured 43Ohms to ground. I read some forums and it seems normal. Nothing is shorted.
I have made a Clean ME BIOS and reflashed it but nothing changed.
So my idea is that I introduce a 32k crystal in the missing Y2 position where I have 3.3v. It can't hurt can it? If anyone has other idea or can explain what canI do please dont hesitate to write a comment.

[mcplslg123]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

I dont see EC_RST#/LID#/EC_PCH_PWROK/EC_ALLSYSPG in your measurements. What's the status with these pins on SIO?

[questore]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

I dont see EC_RST#/LID#/EC_PCH_PWROK/EC_ALLSYSPG in your measurements. What's the status with these pins on SIO?

- EC_PCH_PWROK (KBC Pin 32) - 0V
- EC_RST (KBC Pin 37, after R423) - 3,31V
- LID# (KBC Pin 53) - 3,39V
- EC_ALLSYSPG (KBC Pin 115) - 0V

[mon2]

Re: MSI GE62 6QF MS-16J41 not reacting to power button

So issues with first and last voltages at this time.

Check the power rails.