HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

[loser18]

Hi everybody...

I've got a problem with HP G6 mobo...

It's Quanta R13 Rev. E ( DA0R13MB6E1 )...

Got absolutely NO POWER AND NO LED lights...

I've checked 3 & 5 Volts at PU3 ( RT8223 ) and got nothing...

Checked +VIN to PU3 (pin16) and got nothing...

The IC must be ok, as it's been tested on another mobo and is working...

So I've started to check the charger section & found that pin1 & pin3 on PQ52 Mosfet ( P0603BDG ) is giving me 0V...

After de-soldered, I've got 24V on pad1 ( shouldn't be this 27V+ ??? )

I've replaced the MOSFET, but still got 0V...

Also tested on another mobo & it's OK...

ANY SUGGESTIONS PLS???

I'm also attaching schematics of the mobo...

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

Also checked PU2 for VH28, 12VALW, VIN & everything seems to be OK...
There must be some short between PU2 & that MOSFET...

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

Checked PR129 & got 28V in but 0V out...Also checked resistance and shows 150K as it should be...strange...

[whaldsz]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

What do you get at +VA and pin 1 of PU9?

Pin 2 of PQ18?

Pin 1 of PD4?

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

Unfortunately nothing at the moment, as PQ11 or PQ12 just gone because it's hot around there...This mobo drives me nuts ...Will replace them tomorrow and let you know...Really appreciate Your help, mate...

Yep...PQ12 getting hot...Hopefully I've got some replacement...

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

OK...

Replaced PQ12 & now getting LED light at least...

PR129 reads 19V out now & PQ52 all pins=19V


PQ18 / pin2=0V
PD4 / pin1=2.7V

Also checked PU9 pin9 & getting 3.25V - This is not right, is it???

[dj_ricoh]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

bios bios!
tell what model you got so i can search the bios

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

I've flashed bios already, however didn't check voltages as think the problem is in charging circuit...Don't know the model as I've got mobo only...HP part number is 636373-001...

Anyway...The buck controller ( PU6 ) is getting hot now...Don't understand why

[whaldsz]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

OK...

Replaced PQ12 & now getting LED light at least...

PR129 reads 19V out now & PQ52 all pins=19V


PQ18 / pin2=0V
PD4 / pin1=2.7V

Also checked PU9 pin9 & getting 3.25V - This is not right, is it???

Looks like you now get a working 19v +PWRSRC.

Check if PU3 has proper voltages. This regulator supplies 3.3v to SIO and EC Bios chip.

[dj_ricoh]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

NCP6151S/NCP6151SA/NCP6131S/NCP6131SA dual output four plus one phase buck solution is
optimized for Intel VR12 compatible CPUs. The controller combines true differential voltage sensing.

take the cpu out and check again
see what is getting hot. check the caps near cpu

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

NCP6151S/NCP6151SA/NCP6131S/NCP6131SA dual output four plus one phase buck solution is
optimized for Intel VR12 compatible CPUs. The controller combines true differential voltage sensing.

take the cpu out and check again
see what is getting hot. check the caps near cpu

CPU is out all the time...

[dj_ricoh]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

dammm
i got a i5 and pentium bios do you wanna try again?
i still think its bios related

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

dammm
i got a i5 and pentium bios do you wanna try again?
i still think its bios related

Yeah...Will give it a try...Could You post it?

[dj_ricoh]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

try it
i`m sry i got only the i5 that was a g56

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

Looks like you now get a working 19v +PWRSRC.

Check if PU3 has proper voltages. This regulator supplies 3.3v to SIO and EC Bios chip.

Checked it -

+VIN=19V
VREG3=3.3
VREG5=5

( Checked without the buck controller as don't want to get it burnt completely )

Do I need to check any other pins???

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

try it
i`m sry i got only the i5 that was a g56

Reflashed, but got no led however all pins read 3.3V except pin4...

Also noticed that hex of your file is different so flashed it back with original dump & got led back on & BIOS voltages are OK...

BTW mine is 4mb...

ATTACHING MY DUMP, SOMEONE MAY FIND IT USEFUL, BUT PLS BEAR IN MIND THAT'S UNTESTED...

[whaldsz]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

Ok now, you should check if RSMRST# 3.3v is present at SIO.

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

Ok now, you should check if RSMRST# 3.3v is present at SIO.

OK...Took off the buck controller...cleaned solder pads...tint new solder an resoldered it back...also changed pq12 once again...Seems the buck controller isn't getting hot anymore, but don't have 5 Volts now @ PU3

Also changed PQ17 & PQ18, but still not getting 28V...

Will check it tomorrow as I've had enough for today...

[loser18]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

OK...Don't have a 5Volts on pu3, because PQ52 is shorted I think...

I don't know much about FETs, but drain and source is always open when checking with multimeter...even after short all 3 pins together(also getting hot when connected to pcb)

It's NIKOS P0603BDG, but didn't find exact replacement...

What specs should I match if want to use alternative???
Drain-Source Breakdown Voltage , Rds(on) & On-State Drain Current???
Or is there anything else I should match???

[Fabyj]

Re: HP G6 DA0R13MB6E1 QUANTA R13 REV. E / No power, No LEDs...

Hi, I,m new on this forum and I have same motherboard DA0R13MB6E1 for HP G6.
I have 19 volt till pin 2 of PQ52 (P0603BDG), on pin 1 there is 0 volt and on pin 3 there is 0.33 volt.
Where is the problem?
Regards