[Solved] my computer shuts down randomly and it won't turn on agin? Does the same thing, CPU fan spins for half a second and stops. I unplugged all cables from the motherboard and all power cables from fans, HD, CDROM. Corrupted BIOS? @jayeff how do I test to see what voltage the battery has?

Add a comment if there’s anything specific about the machine.

I decided to put it all back together and try clear the cmos, and i notice a drop of water on the motherboard. It has a pci graphics card in it, PSU says 420w. We’d love to hear from you whether any of these solutions worked. System was running OK, just turned it on one morning, didn't work, opened side of case to get better look, pressed power button again, fan spins for half a second. Because it could not be detecting. I had issue with the ram.. 1 of the ram stick was faulty. This might be (as it usually is) a PSU failure. Flashed the bios thru ez flash in cmos using usb stick. You can check the voltages coming out of the power supply, you can check the cables to make sure they are seated properly.

I have used the PC before, and it worked. Check that the motherboard is installed correctly--not shorting anywhere on the case.

Accessibility. It solved my similar issue. Also, if there's a graphics card, and your monitor is plugged into that, try switching to the onboard video ports on the mobo. I have tried unplugging the PSU and holding power for 30 seconds and that didn’t work. Notice the CPU fan spins for half a second and stops. Opened the side case, is a light on the motherboard, so it is getting power. Then see if you can consistenly get it to post or at least show something on the monitor. Often, it has enough power to run the fan (low-power) and hard time running anything else. I did the following: 1) unplug all cables 2) unplug CPU fan wire from the motherboard 3) plug CPU fan … I don't think i sweating, but i cleaned it up. If your fans spin beyond the normal way, you need to check that the airflow around it is not hindered. Given the initial symptoms I wouldn't have thought you'd get it going again, even just to post. The light on the motherboard is probably just a 5 v LED. If you're asking about the RTC (Real Time Clock) coin cell battery then measure its voltage when it is disconnected from the motherboard. I've had some that lasted 7 years and others 4 so it is always prudent to check the voltage anyway.

This will reset the BIOS setting to the “new” computer defaults. If this doesn’t work you MAY have a bent pin on the CPU or the like. When your computer’s components are faulty or are damaged, they can prevent your machine from booting. Let us know in the comments section below.

It's a 3.0V DC battery, if it is <2.6V DC replace it. Hard drive plugged in?

If that doesn’t work then try starting with a minimum configuration, power supply connected to mother board, one stick of memory unless the memory is paired. I enter setup and tried different settings, to no avail. If this is the case, you can have a new one installed on your computer. Random _User_101, I think for a corrupted BIOS, you can download a new revision of it and burn it to a flash drive, than try to boot from USB. Computers that generally don't include an integrated display, and are meant to be stationary. I never heard of anything like that happening to a PC. Sounds like this is the same thing, Owner insists its condensation build up and water drips.
Look at the photos of bad capacitors in the link below. If not... buy a new motherboard. And i decided to test the cmos battery from old motherboard works ok, so will keep as spare if need later on.

Tried turning on the PC again. You don't know if any of the power supplies were good or of sufficient capacity to run the system. Please log in again. Also how would I fix corrupted BIOS? Have you tried various components in another working system? Getting a another spare PSU to test with it later. @jessica_fawkes. Graphics card - on bopard or a card in slot? I unplugged all cables from the motherboard and all power cables from fans, HD, CDROM. Hi, so I recently finished a PC build and I went to power it on the fans spun, but no startup. Computing.Net cannot verify the validity of the statements made on this Does that all the time now. Random _User_101 When do I put the coin back in, October 23 by So gets alot of salt air. It flashed then rebooted. You didn't provide any history. One of the reasons your computer won’t boot but the fans spin could be a bad RAM. 03/04/2019 by But says new cpu installed, enter cmos to configure. Loose RAM? Bad PSU? If you see a yellow or amber light on, it could indicate a bad motherboard. If all else fails, get a qualified computer repair technician to find out what the problem is and how to get it fixed.
So flashed the bios, and gave bad bios checksum. Of course, we suggest unplugging the power cord and removing, primarily, all external peripherals and then moving to the internal hardware. Jessica Parnelli Fawkes, Is there an OS on the drive? Tried clearing the cmos again, now i cant get the computer to post.

recovery msg each time.

In this case, remove the RAM from its slot, then clean it and return it back to the same slot or try a different slot altogether. Computing.Net and Compnet Ventures, LLC hereby disclaim all responsibility


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