When i flash the power pins with a screw driver the system starts, however when i try to start the system by plugging in the power button wire, it does not work.
sometimes after repeated pressing the button it boots on (occasional)
I tried to flash both the wires after plugging the socket on the pin but it also did not work.
the only way it turns on is by flasing the pins directly with a screw driver.
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Re: system not booting from power on switch
It look like your power switch button is broken.
A replacement may be very difficult to come by, you could add a new power switch by drilling a small hole on a safe place on your case and installing an simple electronic switch that you can find at any electronics store like radio shack but this would involve soldering and wiring. Or you could move your system to a new case.
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The parking lights will also flash a number of times to inform you of the error. The most common causes of the error are neutral safety shutdown (7 flashes). This is the toggle switch under the dash. Locate said switch and toggle it to the on position. Six flashes is the hood pin switch. Locate the switch under the hood and make the necessary adjustment so the pin makes contact with the hood when the hood is closed.
Power button directly connects with the motherboard. So first you have to remove the cables that will be connected and then make connection of 6 and 8 pin via any copper wire, if system power on just by connecting the 6 and 8 no. pins then system is ok , you have to replace the power button otherwise there would be motherboard problem. Please confirms once if it works or not. Your comments is much necessary on this
your not activating the power switch, double check the user manual and be recheck the pwr pin on the header, some are horizontal some are vertical.
if that still doesnt help use a phillips head screw driver and short the two pins you think they are, if they are the pins you were using you have a bad power switch (try using the reset switch as a power switch) if those dont start it try a differant pair until you find the power pins.
If your computer is not switching ON you can try the following in order
1.you have to plug the power cable properly then try changing the power cable.
2. Check C P U power Button is working this can be done by opening the cabinet and switching the computer on by touching the two power button front panel pins on the motherboard with a screw driver if the computer gets started then it is the promblem with the power button in the cpu
3.Try replacing the SMPS with a new one
4. Finally change the CMOS Battery
Try shorting the power pins on the Motherborad. (establish contact manual. use screw drivers such that they touch both the pins).
The power pins are the one the Start button are connected to. Remove this connection alone.
If this powers up the system, you would have to get the Button replaced. Else there's something wrong with the motherboard.
Kindly get back for any clarifcation.
The graphics card or onboard graphics driver may not be kicking in at boot up causing the monitor to shut down, check the graphics card connector for bent pins and both connector ends.
If you are able, think back to when this started and use system restore to a date before is started.
Also you may have inadvertantly updated your graphics driver with one of windows generic drivers, of which may be the cause.
You can also try pressing F8 on boot up and selecting 'last known good configuration' and see if that cures it.
Had the same problem with My Compaq M700 No Boot Or Post. Battery Light Flashes 8 Times, Have to Wait 24 to 48 hrs sometimes longer to get Laptop to Start. Tryed the DC Converter Board Change No Difference same Problem. Noticed When Laptop Did Start Clock Time Was always a Little Off 2-4 Hours sometimes more. So Figure CMOS Problem With Time Issues. Read About Battery Memory Transitor Voltage spike Detection Issues Corrected With Newer Bios Flash at HP Supports. So I Flashed Bios With Latest 686h. During the First Boot After Reflash Battery LED Did flash No Start, After pushing the power button again it Started. And has Every since.So Far Laptop Now Boots Everytime and CMOS Checksum Seems To Keep Time Correct In Windows. The Bios Flash Corrects a Voltage Spike Detecting Transistor In The Charging Circuit. During First Start after flash Bios will run system test on the charging system and Correct CMOS. Worked for Me Hope this Helps a Few.