Question about Computers & Internet
I measure 12.74V on the 24ATX connector of the PSU. This falls outside the 5% tolerance. Can this result in the computer not starting anymore? Note: last week, we could still get it started by powering and unpowering the computer a number of times. I did a visual inspection of the capacitors but saw nothing unexepected.
Take it to a technical store or BestBuy. They should be able to help. Just take the main parts that you know that you need. One question though, did you have any modifications on that system?
Posted on Dec 25, 2013
Testimonial: "I did no modifications."
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Posted on Jan 02, 2017
It's more than likely the CMOS battery a disk shaped 3V watch type battery found on the motherboard. Change this then reset time and other settings and your away.
Posted on Dec 26, 2006
SOURCE: Power up problem
One thing u can do also. Open your system case, remove cmos battery clean cmos battery and then insert like same. And restart your system. Other wise check power connections voltage. If it is ok then definitely it will wirk.
Posted on Sep 07, 2007
SOURCE: pover up trouble
sounds like something is drawing down on your 12 volt supply drives or on board regulators. Try it without the drives connectged, and see if you can get the system to boot up(you'll just get a notice that your drives are unavailable, but you'll already know that, right?
got backup for your Dell?
Posted on Feb 15, 2008
Try these steps.
If Power supply light does not turn on (or no power supply LED)
Perform the following steps, in order, until power is restored or it is determined that there is a hardware failure:
NOTE: If the Power Supply fan spins when the PC is turned on but the light does not come on, it is possible the LED is defective. If this is the case, use the section Power supply light comes on or flashes .
1. Disconnect everything from the PC, including the power cord.
2. With the power cord disconnected, press the power button on the front of the computer. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
3. Replace the power cord with another power cord, like the one used by the monitor.
Test to see if the computer can turn on. If not, continue using these steps.
4. Ensure that the voltage selector switch is on the correct setting, 115V for North America.
5. With the power cord removed, flip the red voltage selector switch to the opposite position, wait about five seconds, and then switch the red voltage selector switch back to its original location.
This ensures that the voltage switch is engaged and set correctly for your country/region.
6. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
7. Plug a lamp into the same outlet to see if the wall outlet has power. Try the computer in a different outlet in order to eliminate the outlet as a possible source of the issue. Test both to see if the wall outlets have power.
8. Remove all extension cords, power strips, surge protectors and any converters that remove ground. Plug the power cable directly to the wall outlet. Test for power. If this fixes the issue, find the device that is causing the issue and do not use it.
9. Use a vacuum cleaner to remove the build-up of dust from the power supply fan vent holes. Make sure that the PC is turned off and that the power cord is plugged into a grounded outlet. Only use the end of the vacuum hose near the outside of the fan entrance.
Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
10. If all of the above steps have been tried and the power supply light remains off, use the steps in the next section, use the next section Power supply light comes on or flashes , to reseat the cables and check the power switch connector.
Posted on Jan 12, 2009
SOURCE: Possible PSU problem?
i was useing my pc yesterday night and i woke up 2day to use and i had the same problem fan running without stopping and no blue light and nothing displyd on monitor. i opned it and i cleaned it with air pump and its working now. so try to cleane it with a good air pump. i hope mine stay working. good luck all
Posted on Mar 23, 2009
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