Question about Asrock 775i65G Motherboard

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Power supply tests ok but installed nothing happens It was working ok until last nite when it shut itself off.wouldn't restart tried another power supply same result.tried an old one without the 24 volt mb connector and it powers up the machine but not mb.I tried resetting memory and cmos

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It would appear that you may have an overloading component and the power supply's protection mechanism shuts it off as a safety measure.
The fact that the symptom continues even with another power supply suggests this is the case. However, before running into any conclusions, please check and double check your mb connections.
Also, added high performance hardware has its toll on power. Have you added hardware to your system? If that's the case, try getting a higher powered power supply.
Good luck!

Posted on Sep 06, 2009

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Posted on Jan 02, 2017

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No power


Try disconnecting the power supply and start it on battery only.
After you see a screen display of some kind, the power supply can be reconnected.
If this does not work, then remove the battery and start the computer using the power supply only.
After the computer start up sequence is complete, the battery can be re-inserted into the computer.

If the computer continues to misbehave on later restarts, then follow the more rigorous BATTERY RECALIBRATION Procedure below.

1. Now, after the system is up and running with both the battery inside and the power supply connected, after taking note of the current settings so that they can be restored later, set the power plan to High Perfomance, set the computer to Never Sleep on Battery and on Power Supply, disconnect the power supply and allow the computer to run until it shuts itself off due to a low battery condition. This will discharge the battery and performs phase one of battery re-calibration.

2. Next, plug in the power supply, while leaving the battery in place and restart the computer. Allow the battery to fully recharge while leaving the power plan at High Performance and the Sleep to Never. This performs phase two of battery re-calibration.

3. Then, disconnect the power supply and allow the computer to run until it shuts itself off due to a low battery condition, again, now that it has a possibly better, fuller charge than in the previous charge/discharge cycle.

4. Again, restart the computer, connect the power supply and allow it to completely charge the battery.

5. Shut down the computer, disconnect the power supply.

6. Restart the computer and allow the computer to run until it shuts itself off due to a low battery condition again.

7. Now the battery has been recalibrated. Connect the power supply, restart/resume the computer and allow the battery to fully charge again. The Power Plan and Sleep Mode can be set back to their original settings at this time.

8. The above procedure should only need to be performed every six to twelve months to recalibrate the battery.


This condition sometimes happens to my HP Presario when I have left the power supply plugged into the computer with the battery in for several days or weeks at a time, without running on the battery alone for a while to discharge and recharge it a little bit.

HP recommends that when running your computer for more than two weeks from the power supply, the battery should be removed to slow the aging of the battery, which can cause the battery to lose capacity or fail prematurely.

May 23, 2011 | HEWLETT-PACKARD Hewlett Packard HP 15.6"...

1 Answer

Emachines t3958 wont power on


The green light means there is standby power to the motherboard.
Power button may be broken, does it 'click'?
With the case open, do any of the fans start, then stop?
If yes to the above, you may have a bad power supply. Can you borrow one to try?
Last test before it's the chip or mother board:
Remove the connectors for power from drives, video card, all but the motherboard (Do NOT disconnect small connectors on the motherboard, just POWER from the drives and video card)
Remove any expansion cards except video. Note where they go.
Try again. If it starts and fans run ok (video may not work but fans go normally.), shut it off, reconnect the video card. Try again, power off, connect or install one thing at a time until it stops running again. The last item plugged in is the culprit.
Always one item, power on, try it, then power off, try the next one.

Apr 02, 2010 | E-Machines T3958 (827103050974) PC Desktop

1 Answer

Last nite it just shut down by itself and i couldn't get it turned back on. what happened?


Dear ray_dorothy,

read this article

http://www.squaretrade.com/pages/laptop-reliability-1109/


basically 1/3 of all laptops fail in the first 3 years of its life.

________________________________________________________

Issues that may cause your problem / to look for:
in no particular order.

power supply
Hard Drive
motherboard
CPU
Memory






Nov 24, 2009 | Toshiba Satellite A100-S8111TD Notebook

1 Answer

Gateway yellow power button, nothing starts, no fan, nothing. opened up computer and see mobo led light is lit. newton ps has a test button. tried to test with various components plugged in and the test...


Power supply has several voltages. Just because the 5v power is active doesn't mean all the voltages are OK. You need to have the power supply tested for 12v and 3.3v. A quick test is to unplug all the wires from the power supply. There is a single green wire on the motherboard main plug. Connect (use a bent paper clip) that green switch wire and any black wire. Plug in the power supply and it should run (fan starts)

Oct 26, 2009 | Gateway (ATX-300-12EB3) (ATX30012EB3)...

1 Answer

Pc not always booting,


blow out dirts on bord, then you pack the board to avoid any bridging with the cassing

Jul 20, 2009 | Computers & Internet

1 Answer

When i hook up the USB in computer it shuts down


Reinstall or update the usb devices drivers.
doesnt work? try changing power supply

May 28, 2009 | Logitech QuickCam Orbit AF Webcam

1 Answer

TV INPUT ON BACK OF TV, GIVE AN ERROR


I recomend that before doing anything else, unplug your TV (from power) for at least 5 minutes and then plug it back in. See if this solves the problem.

Feb 24, 2009 | Sharp LC-42D64U 42 in. LCD HDTV

1 Answer

HP Desktop Pent 4 randomly shuts down and restarts on its own


Hello,

That is a power failure, please try change the power supply..or test the voltage in the wall outlet if it rate 220 volts if not then power supply is the main causes. Sometimes the software's got conflict due to virus infections.

try to scan your computer with a potent antivirus maybe it help.

melnavz

Oct 23, 2008 | HP Pavilion a1410n (ER890AA) PC Desktop

1 Answer

Testing a power supply


Most commonly it is the power supply. Rarely it is the motherboard when it just stops working with no other signs. You can take a power supply from another computer and test but I bet it is definitely the power supply. You can purchase a power supply tester for around $20 or so but you can get a power supply for not much more than that and test it that way.

Jun 19, 2007 | Antec SL400 (761345254007) 400-Watt Power...

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