Question about Gateway MX6424 Notebook

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MX6441 will not power up. have voltage going to

MX6441 will not power up. have voltage going to and out of dc plug and at on off switch. no led indicator or fan

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  • jack14839 Jun 24, 2009

    thanks for the suggestions. going with the motherbroad seems easy and covers all the bases

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This suggests that 1. the power supply is no longer putting out the correct voltage, but still sorta working(probably not the case) or that you have a bad connection on the socket for the power adaptor, #3. the mother board has decided it no longer wants to work(most likely), it has to be replaced. this model has had alot of mother board problems in the past.

Posted on Jun 23, 2009

  • Dennis Potter Jun 24, 2009

    this suggests that *********** board has gone bad, try removing your battery and restart your computer to see if that takes care of your problem, but it appears that the mother board has gone bad, I suggest you take it to a qualified tech in your area to have him also trouble shoot the unit.

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No power when plugged into ac


When you connect the power adapter into the laptop, does the power LED light up? If not then - The battery adapter or the adapter's power lead or the laptop's power socket could be faulty. Check power adapter's DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced. If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard. This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. If you cannot DIY then I suggest you get a quote first.

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1 Answer

Toshiba c845 power jack broken. Help!


When you connect the power adapter into the laptop, does the power LED light up? If not then - The battery adapter or the adapter's power lead or the laptop's power socket could be faulty. Check power adapter's DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced. If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard. This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. If you cannot DIY then I suggest you get a quote first.

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1 Answer

Replace DC connector


When you connect the power adapter into the laptop, does the power LED light up? If not then - The battery adapter or the adapter's power lead or the laptop's power socket could be faulty. Check power adapter's DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced. If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard. This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. If you cannot DIY then I suggest you get a quote first.

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1 Answer

Hp laptop dc connector


When you connect the power adapter into the laptop, does the power LED light up? If not then - The battery adapter or the adapter's power lead or the laptop's power socket could be faulty. Check power adapter's DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced. If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard. This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. If you cannot DIY then I suggest you get a quote first.

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2 Answers

Wont power up no lights


Whenyou connect the power adapter into the laptop, does the power LED lightup? If not then -The battery adapter or the adapter's power lead or the laptop's powersocket could be faulty.Check power adapter's DCplug that connects into the laptop power socket with a multi-meter, the voltageshould be slightly higher than the voltage that is printed on the label on thebottom of the adapter. If the voltage is zero or way below the voltage that isprinted on the label then the power adapter is faulty and needs to be replaced.If the adapter is OK thenconnect it to the laptop and power it up, then look at the power/batterycharging LED light and wriggle the power plug in the laptop's powersocket. If the power/battery LED light flashes and in a certain position thisLED light stays firm, then the power socket is either faulty or it has a drysolder joint where it is connected to the motherboard.This can be repaired but itrequires the laptop to be completely dismantled to get at this power socket andrepair. If you cannot DIY then I suggest you get a quote first.

Aug 05, 2012 | Sony Vaio VPCEA36FM

2 Answers

Green LED on board is on but computer will not start


1) Check to see if the problem is the Power On switch, or the Power Supply, first.

Use a multimeter on the two wires coming from the Power On switch.
Perform a continuity test of the switch.

How?
An economical multimeter can be purchased, for as little as $8 to $12. Available in a multitude of stores. An auto parts store is but one example.

Make notes, and a drawing as to where those two wires go, on the Front panel header, on the motherboard. Then disconnect the two wires, and hold them in your hand.

Set the Function knob of the multimeter to OHM's. (1K, or 10K)
Touch the Positive (Red) probe lead of the multimeter to one wire.
Touch the Negative (Black) probe lead of the multimeter, to the other wire.
Press the Power On switch. (Button)

You should see a brief reading on the multimeter scale. (Or readout if the multimeter is digital)
It is brief because the Power On switch is a Momentary Contact Switch.

No reading? Bad ATX power on switch,

http://www.directron.com/atxswitch.html

Good reading? The Power Supply may be bad.
Test the three main voltages coming from the Power Supply.

[NOTE*
The Switched-Mode Power Supply, (SMPS), in your computer, is a power converter. It converts AC electricity from your home, or business, into three LOW DC voltages.

The shock hazard is IN the Power Supply's case. Not from the low DC voltages it produces ]

A) 3.3 Volt power rail
B) 5 Volt power rail
C) 12 Volt power rail

Test at the 20-pin ATX main power cable's connector,

http://usa.asus.com/Motherboards/AMD_Socket_754/K8VX_SE/

Photo, shows the white, long 20-pin ATX main power cable connector, on the motherboard. No power cable plugged in.
Two rows of 10 socket holes.
(Above the blue Heatsink that sits on the Northbridge chip )

This is a general example of a 20-pin ATX main power cable, and it's respective connector on the motherboard,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

Power cable plugged in as shown in the right photo.
I suggest using a straightened out paper clip, and sticking it down in the socket for the power wire.
This is for the Positive (Red) probe lead of the multimeter, to touch to.

First voltage power wire check:
The multimeter function knob is set to DC Voltage. If just a symbol, the symbol is a dotted line, over a solid line.
IF there is more than one DC Voltage scale, for the Function knob to be set to, set it to the 0 - 50 Volt scale.

The straightened out paperclip, will go down into the BACK of the 20-pin ATX main power cable's connector, RIGHT NEXT to the Orange wire.
Has to go down far enough, to go past the Orange insulation of the wire, and TOUCH the metal terminal down in the bottom.

[Looking at the middle photo, you can see the tips of the metal terminals I am referring to.
Uninstalled, and end not crimped over the wire's insulation, this is what they look like,

http://www.molex.com/molex/products/datasheet.jsp?part=active/0002081202_CRIMP_TERMINALS.xml&channel=Products&Lang=en-US

Left side shown, crimps over the insulation of the wire.
The far right side is what you are seeing the tip of, in the middle photo of the Playtool link ]

You can use ANY of the Orange wires you see. ALL are 3.3 Volt wires.
The Negative (Black) probe lead of the Multimeter, touches ANY Black wire.
ALL Black wires are Ground wires.
(Straightened out paperclip, also goes down in the Black wire's socket hole )

Put the straightened out paperclips in the appropriate socket holes, then plug the Power Supply into power. Press the Power On button, and start the Power Supply.

On the DC scale of the multimeter you should be reading VERY close to 3.3 Volts.

Good?
Go to ANY Red wire. ALL Red wires are 5 Volts (DC)
Positive (Red) probe lead of multimeter to straightened out paper clip, down into a socket hole, with ANY red wire.

Negative (Black) probe lead of multimeter to straightened out paperclip, in ANY socket hole with a Black wire.
Reading should be VERY close to 5 Volts. (DC)

Good?
Go to ANY Yellow wire. ALL Yellow wires are 12 Volts. (DC)
Reading should be VERY close to 12 Volts. (11.5 to 12 Volts)

ANY low reading means a bad Power Supply.

Primer:
1) If ALL of the LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor can use 51 to 125 watts of power.

From your brief diagnoses it looks to be a bad Power Supply.
barely enough to light the green LED light on the motherboard.
Not enough power to even spin fans, much less turn the Processor on.

Power Supply checks out?
Perform a visual check of the Electrolytic Capacitors on the motherboard. Look CLOSE, and you may need a light, and magnifying glass.

http://www.capacitorlab.com/visible-failures/index.htm

Capacitors on the motherboard are used as Filters, and Voltage Regulators.
The one's used as voltage regulators, are in the motherboard voltage regulator circuit.
Some of the one's used in the motherboard voltage regulator circuit, regulate voltage for the Processor.

A Processor MUST have a steady, 'clean', supply of Voltage, and it MUST be kept within a very 'tight' tolerance range. Cannot be too much, or too little, or BIOS will not turn the Processor on.
(Or if on, will not keep it on)

That's an old motherboard. Could be bad capacitors, but I'm more willing to bet on a bad Power Supply.

For additional questions please post in a Comment.
Regards,
joecoolvette

Jul 23, 2012 | ASUS K8V-X SE Motherboard

1 Answer

Hi all, TECRA M10 Model No. PTMB3A000N004 Laptop was on standby and was left open all night. Next morning, no response and would not 'wake'. Laptop was plugged in on charge. Hard rebooted...


take a look:

Power Status Check
The following LEDs indicate the power supply status:
q Battery LED
q DC IN LED
The power supply controller displays the power supply status through the Battery and the DC IN LEDs as listed in the tables below.
Table 2-1 Battery LED
Battery LED Power supply status
Lights orange Quick charge.
Lights green Battery is fully charged and AC adapter is connected
Blinks orange (even intervals) The battery level becomes low while operating the computer on battery power.*1
Flashes orange The power switch is pressed on when the battery level is low.*2
Doesn't light Any condition other than those above.*1 Low Battery Hibernation will be executed soon.
*2 Low Battery Hibernation has already been executed.

Table 2-2 DC IN LED
DC IN LED Power supply status
Lights green DC power is being supplied from the AC adapter.
Blinks orange Power supply malfunction*3
Doesn't light Any condition other than those above.
*3
When the power supply controller detects a malfunction, the DC IN LED blinks and an error code is displayed.

-------------------

Error Code Check
If the power supply microprocessor detects a malfunction, the DC IN LED blinks orange. The blink pattern indicates an error as shown below.
q
Start
Off for 2 seconds
q
Error code (8 bit)


"1"
On for one second

"0"
On for a half second

Interval between data bits
Off for a half second

The error code begins with the least significant digit.
Example: Error code 12h (Error codes are given in hexadecimal format.)

Convert the DC IN LED blink pattern into the hexadecimal error code and compare it to the tables below.

q DC IN
Error code
Meaning
10h
AC Adaptor output voltage is more than 16.5 V.
12h
Current from the DC power supply is more than the limit (6.05 A).
13h
Current from the DC power supply is more than the limit (0.5 A) when there is no load.
14h
Current sensing IC is not normal.

q Main Battery
Error code
Meaning
21h
Main battery charge current is more than 6.05 A.
22h
Main battery discharge current is more than 0.5 A when there is no load.
23h
Main battery charge current is more than 3.1A when DC IN direct charge is off.
24h
Current sensing IC is not normal.
25h
Main battery charge current is more than 0.3A when the battery isn't being charged.

q S3V output
Error code
Meaning
40h
S3V voltage is not more than 3.14V when the computer is powered on or off.
45h
S3V voltage is not more than 3.14V when the computer is supports CV and is booting up.

q C5V output
Error code
Meaning
50h
C5V voltage is more than 6.00 V when the computer is powered on or off.
51h
C5V voltage is not more than 4.50 V when the computer is powered on.
52h
C5V voltage is not more than 4.50 V when the computer is booting up.
53h
C5V voltage is not normal when the computer is suspended.
54h
C5V voltage is not normal when the computer supports CV and is suspended.
55h
C5V voltage is not more than 4.50V when the computer supports CV and is booting up.

q C3V output
Error code
Meaning
60h
C3V voltage is more than 3.96 V.
61h
C3V voltage is not more than 2.81 V when the computer is powered on.
62h
C3V voltage is not more than 2.81 V when the computer is booting up.
63h
C3V voltage is not normal when the computer is suspended.
64h
C3V voltage is not normal when the computer supports CV and is shut down.
65h
C3V voltage is not more than 2.81V when the computer supports CV and is booting up.

q PPV output (PCU core voltage)
Error code
Meaning
70h
PPV voltage is more than 1.56V when the computer is powered on or off.
71h
PPV voltage is not more than 0.68V when the computer is powered on.
72h
PPV voltage is not more than 0.68V when the computer is booting up.
73h
PPV voltage is not less than 0.68V when the computer is powered off.

q BGVSNS output
Error code
Meaning
80h
BGVSNS voltage is not more than 1.62V when the computer is on or off.
81h
BGVSNS voltage is not more than 1.02V when the computer is powered on.
82h
BGVSNS voltage is not more than 1.02V when the computer is booting up.
83h
BGVSNS voltage is not less than 1.02V when the computer is powered off.
84h
BGVSNS voltage is not more than 1.62V when the computer is suspended.

q 1R5-E1V output
Error code
Meaning
90h
1R5-E1V voltage is more than 1.80V when the computer is powered on or off.
91h
1R5-E1V voltage is not more than 1.275V when the computer is powered on.
92h
1R5-E1V voltage is not more than 1.275V when the computer is booting up.
93h
1R5-E1V voltage is not less than 1.275V when the computer is powered off.
94h
1R5-E1V voltage is not more than 1.275V when the computer is suspended.

q 1R8-E1V output
Error code
Meaning
A0h
1R8-E1V voltage is more than 2.16V when the computer is powered on or off.
A1h
1R8-E1V voltage is not more than 1.53V when the computer is powered on.
A2h
1R8-E1V voltage is not more than 1.53V when the computer is booting up.
A3h
1R8-E1V voltage is not less than 1.53V when the computer is powered off.
A4h
1R8-E1V voltage is not more than 1.53V when the computer is suspended.

q 2R5-SNS output
Error code
Meaning
B0h
2R5-SNS voltage is more than 3.00V when the computer is powered on or off.
B1h
2R5-SNS voltage is not more than 2.125V when the computer is powered on.
B2h
2R5-SNS voltage is not more than 2.125V when the computer is booting up.
B3h
2R5-SNS voltage is not less than 2.125V when the computer is powered off.
B4h
2R5-SNS voltage is not more than 2.125V when the computer is suspended.

q 1R25-E1V output
Error code
Meaning
C0h
1R25-E1V voltage is more than 1.50V when the computer is powered on or off.
C1h
1R25-E1V voltage is not more than 1.063V when the computer is powered on.
C2h
1R25-E1V voltage is not more than 1.063V when the computer is booting up.
C3h
1R25-E1V voltage is not less than 1.063V when the computer is powered off.
C4h
1R25-E1V voltage is not more than 1.063V when the computer is suspended.

q 2R5-E1V output
Error code
Meaning
D0h
2R5-E1V voltage is more than 3.00V when the computer is powered on or off.
D1h
2R5-E1V voltage is not more than 2.125V when the computer is powered on.
D2h
2R5-E1V voltage is not more than 2.125V when the computer is booting up.
D3h
2R5-E1V voltage is not less than 2.125V when the computer is powered off.
D4h
2R5-E1V voltage is not more than 2.125V when the computer is suspended.

---------------------
In the case of error code 10h or 12h:

Make sure the AC adaptor cord and AC power cord are firmly plugged into the DC IN 15 V socket and wall outlet. If the cables are connected correctly, connect a new AC adaptor and/or AC power cord, if necessary.

In the case of error code 2Xh:

Make sure the battery pack is correctly installed in the computer. If the battery pack is correctly installed, replace the battery pack with a new one.

If the error still exists, the system board or the battery board may be disconnected or damaged. Disassemble the computer and check the connection between the AC adaptor and the system board and connection between the system board and the battery board (if there is one, in my case it was integrated to ths system board).

After checking the connection, perform the following:
Check 1
Replace the AC adaptor with a new one. If the AC adaptor is still not functioning properly, perform Check 2.
Check 2
Use a multimeter to make sure that the F8800 fuse on the System board is not blown. If the fuse is not blown, go to Check 3. If the fuse is blown, go to Check 6.
Check 3
Use a multimeter to make sure that the F1000 fuse on the Battery board is not blown. If the fuse is not blown, go to Check 4. If the fuse is blown, replace the Battery board with a new one following the instructions in Chapter 4.
Check 4
Make sure that the Battery board cables are firmly connected to PJ8820 and PJ8821 on the System board and to PJ1000 and PJ1001 on the battery board. If they are connected firmly, go to Check 5.
Check 5
The Battery board or System board may be damaged. Replace it with a new one following the instructions in Chapter 4.


I hope this helps many people with the troubleshooting. Details may vary as models vary, but most if it is the same for every Toshiba

Mar 03, 2017 | Toshiba Tecra M10 Notebook

1 Answer

Good day, my monitor's power supply has the pwr led flashing like a pwr flux, unpluged the io board connector and the led stays on, think the ic might not be puttin out enough power and might be bad but...


How do the DC filter caps look? no bulging/leaking tops?
You need to verify the DC output of the 5vd and the 12~18 for the inverter, you will plug the power into the wall outlet and turn off the monitor using the power switch, check the DC voltage (The power supplies will be runing the minute the monitor is plug into the outlet and you do not want the inverter circuits to be running so you can check the DC with the inverter off and on to see if the DC ouput is steady. Please post back what you see.

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague

Sep 13, 2010 | Samsung SyncMaster 540N 15" LCD Monitor

1 Answer

Bad AC connection, how do I fix it myself? soder the connection?


The AC connection is at the mains wall socket. I presume you mean the DC plug that plugs into the laptop or the DC socket on the laptop.

Check power adapter's DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced.

If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard.
This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. I suggest you get a quote first.

Oct 28, 2009 | Dell Inspiron 6000 Notebook

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