DAOR33MB6E0 REV:E Partial ON

[mcplslg123]

Glad to know that ravi

[ravi_1617]

Replace PU15.

I have replaced as, I said.
I didn't had spare , ordered it, after replacing I had posted
Thanks

[mcplslg123]

Replace PU15.

[ravi_1617]

What is the voltage on ram supply (PL16)coil? Dramrst# should be 1.5V and not 1.61V. May be ram is supplied excess voltage.
You should get voltage on PL29(i know its gfx core but have seen voltage on this coil in R33 mb). So probe components connected to PL29. Of ten the high side mosfet(PQ44) connected to PL29 gets partialy shorted.
If PQ44 is damaged,then you need to replace PU15/PQ44/PQ43 all at one go.
Btw, 1.05V_VTT_PWRGD present?

Yes you r correct,it's 1.5V
Sorry for delay in replying.as you are saying PL29 GFX core should be present.
I have checked PQ44 & 43, were fine,PU15 area was corrosive,I have removed/cleaned/ replaced ,than slight change observed, (previously as told board turning off) now it doesn't turn off,but PCH is heating ,
Now what do u suspect to
Thanks

[mcplslg123]

What is the voltage on ram supply (PL16)coil? Dramrst# should be 1.5V and not 1.61V. May be ram is supplied excess voltage.
You should get voltage on PL29(i know its gfx core but have seen voltage on this coil in R33 mb). So probe components connected to PL29. Of ten the high side mosfet(PQ44) connected to PL29 gets partialy shorted.
If PQ44 is damaged,then you need to replace PU15/PQ44/PQ43 all at one go.
Btw, 1.05V_VTT_PWRGD present?

[ravi_1617]

Are you getting any voltage on PL29? Dramsrst# on ram slot pin30 present?
Consumption on dc supply
01.With ram stick
02.Without ram stick?

No voltage on PL29
DRAMSRT# I measuring 1.615v

Regarding your point 1&2

As told before power Amps reading starts at .62 ........ slowly goes to .91 Amp and shuts down
takes around 1 and half minutes

[mcplslg123]

Are you getting any voltage on PL29? Dramsrst# on ram slot pin30 present?
Consumption on dc supply
01.With ram stick
02.Without ram stick?

[ravi_1617]

A small doubt .
moving R550 to R549
and removing PL27 coil,
is that enough .to turn off VGA CORE power .
not required to remove PU12,, PL12, or any thing else

Thanks

Hi,
Update removed PL27 COIL, moved R550 to R549,still board has no display. Intel PCH still heating ,
I left it on for some time , after some time board turning off itself,

tried many times same situation, Amp reading same around 0.70

Thanks

[ravi_1617]

First convert this board to UMA. Its very simple and detailed info is there on internet.

A small doubt .
moving R550 to R549
and removing PL27 coil,
is that enough .to turn off VGA CORE power .
not required to remove PU12,, PL12, or any thing else

Thanks

[mcplslg123]

First convert this board to UMA. Its very simple and detailed info is there on internet.

[ravi_1617]

Just an update, Thanks after replacing PU5 ,board started/ fan spinning .,
than noticed bench power amps showing more than 2.5 amps. it was due to 1 of the Ram was short,.

now board starting , consumes around 0.60 to 0 70 , with no display
again flashed few bios, tried few Ram ,CPU also, same situation . no display.

when connected keypad found CAPS LOCK blinking every 4 Seconds continually .

https://www.badcaps.net/forum/troubl...mlock-flashing

the above post says to replace Intel . I have observed in my board . has AMD/ATI graphic chip and Intel also.
ATI not heating at all. but Intel is heating bit more even it has heat sink

do i need to replace Intel or something else to try
Thanks

[ravi_1617]

You forgot to mention pin12,PU5 voltage. PU5 seems powered and getting the enables as well.So Timer ON(TON) pin very important for it to give output.Check PR34 is 600K-often this resistor go bad. If PR34 is ok,replace PU5.
You've not shared PU13,pin15 ststaus aslo.

pu5 pin 12 15.40 showing
PR34 is ok .
i don't have pu5 spare . i will update you soon .

Thanks

[mcplslg123]

You forgot to mention pin12,PU5 voltage. PU5 seems powered and getting the enables as well.So Timer ON(TON) pin very important for it to give output.Check PR34 is 600K-often this resistor go bad. If PR34 is ok,replace PU5.
You've not shared PU13,pin15 ststaus aslo.

[ravi_1617]

Share resistance to GND on coil PL16/PL30
Mainon present?
Voltage on pin10/11/12/13/15 of PU5 after pressing power button?
PU13,pin15 voltage?

Sharing update
PL16354 Ohm
PL3017.2 Ohm
Yes Main on Present
PU5
PIN10 3.321
11 3.349
13 9.2 mil vol
15 5 v

[mcplslg123]

Share resistance to GND on coil PL16/PL30
Mainon present?
Voltage on pin10/11/12/13/15 of PU5 after pressing power button?
PU13,pin15 voltage?

[ravi_1617]

There is boardview posted in this forum.use it to locate components and report back with the findings.
No help can be extended unless you answer in full. Hopefully, problem should be solved with united effort if not alone.

Thanks for your interest,
found Board view
PL 30 COIL is blank no power at both poins

PQ36 pin 1,2,5&6 3.391
pin3 12.12
pin 4 3.391

PQ47 PIN1,2,3 5V
PIN 4 12V
PIN 4-8 5

HWPG not present.

[mcplslg123]

There is boardview posted in this forum.use it to locate components and report back with the findings.
No help can be extended unless you answer in full. Hopefully, problem should be solved with united effort if not alone.

[ravi_1617]

What about PL30 voltage?
PU13,pin15 voltage?
PQ36/47/55-volatge on all pins?
HWPG present?

Sorry to say mcplslg123 unable to find Pl 30
PU 13 Pin15 3.021
didn't find PQ 36 &PQ 47
PQ55 PIN123 3.3V
PIN4 12.11v
PIN 5678 3.392v

Pleas help

[ravi_1617]

[QUOTE=mon2;n3245146]Carefully measure the voltage to ground of each pin on the charger IC at PU9.

Meter in DC volts scale of 30V or higher. Black probe be to ground. Red probe to point to test.

Need to know (as a minimum):

ACDRV
ACDET
REGN

These are the reading

1 19.81
2 19.81
3 19.76
4 24.98 ACDRV
5 2.97 ACDET
6 2.78
7 4.6 mil volt
8 3.32
9 3.382
10 3.34
11 2.82
12 2.81
13 2.82
14 GND
15 000.3 goes to 0000
16 5.93 REGN
17 5.88
19 2.81
20 19.79

At PL 16coil 1.5v also not present my mistake

Thanks for your interest mon2

[mcplslg123]

What about PL30 voltage?
PU13,pin15 voltage?
PQ36/47/55-volatge on all pins?
HWPG present?