If the computer is not truing in first attempt then check for the earthing is OK or not. Then check the power is correctly supplying or not. There may be a chance in loose connection of the switch of your cabinet. If the system is shutting down when you give restart, then it may be problem of power. If the power part is is OK then the operating systems is to re-installed or repaired.
This like cause by virus, reinstall your pc
SOURCE: Q - The computer start after 3 or 4 attempt when I
Test your PSU or replace it if your power supply units fan is not working your PSU is faulty One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive Test all leads that attach to your hard drive including electrical extensions,IDE,SATA the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty or just replace them they are probably old and faulty ?
hope this helps
Turn Off the computer, now as soon as you hit the power button, keep on holding "Alt" key & keep on tapping "F10 key,ie: Alt+F10, it will open the recovery console ,select full factory restore and follow on screen instruction. (Note:this will erase all datas on the computer)
Here are a few things you can do or try Restart the computer. If you are already in Windows, you can do this from the Windows Start menu, go to Turn off computer and click Restart. As the computer restarts, watch for a progress bar at the bottom of the screen. press F8 about once every second. Immediately press F8 before the progress bar reaches the right side of the screen. From the Windows Start-up menu, highlight Safe Mode and press Enter. Wait for your desktop to appear, and then make the necessary repairs (for example, uninstall programs or devices). When the repairs are done, restart the computer, and allow it to boot normally. Alternate: From the Windows Start menu, click Run. In the Open field, type MSCONFIG and click Ok. On the BOOT.INI tab, check /SAFEBOOT. Click Restart when prompted. Turn Off the computer, now as soon as you hit the power button, keep on holding "Alt" key & keep on tapping "F10 key,ie: Alt+F10, it will open the recovery console ,select full factory restore and follow on screen instruction. (Note:this will erase all datas on the computer) or During the boot process you will see on the screen to press a certain key to enter setup Press and hold that key during the boot up process to enter BIOS you can load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart click start all programs accessories scroll to system tools from there you should see a system restore click next a sytem date should open up select the date you want to restore your computer to or if you want a full factory restore or Turn Off the computer, now as soon as you hit the power button, keep on holding "Alt" key & keep on tapping "F10 key,ie: Alt+F10, it will open the recovery console ,select full factory restore and follow on screen instruction. (Note:this will erase all datas on the computer) or During the boot process you will see on the screen to press a certain key to enter setup Press and hold that key during the boot up process to enter BIOS you can load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart helps don't forget to vote
Test your PSU or replace it if your power supply units fan is not working your PSU is faulty
One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive
Test all leads that attach to your hard drive including electrical extensions,IDE,SATA
the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty or just replace them they are probably old and faulty ?
hope this helps
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