Solved Why is my computer not turning on?

March 21, 2013 at 21:44:28
Specs: Windows 7
I remember shutting it down a couple days ago and it was working perfectly.
Now after I come back, I notice the power led is flashing and the fans are still on.
It could be that when I shut it down, it never shut down at all and the fans just kept running.
Now it won't even go to the login screen or anything.
What could be the cause?

See More: Why is my computer not turning on?

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✔ Best Answer
March 22, 2013 at 16:14:14
Have there been any storms or power faults in your area while you were away? It is possible a power spike may have damaged your system.
Begin by disconnecting from mains power. Re-connect and try booting. If that does not get you any further then your next step is to get a different powersupply. At this stage you don't know if yours is OK or damaged.
Downside to these type issues is it may not be the powersupply at fault but without a known good unit it isn't easy to narrow the field. An alternative strategy would be to disconnect all peripheral devices including drives, remove the graphics card and all but one stick of ram. work off the onboard graphics and leave only keyboard connected.
Will it boot up into BIOS for you? Do you get any BIOS Beep or error code?

Goin' Fishin' (Some day)



#1
March 22, 2013 at 02:55:07
is it a laptop or a desktop ... whats the make of the system that you are using ....... if its a laptop ... remove the battry and the power cord and press and hold the power button for 5 to 10 sec(this would remove the flee power from the computer which some times causes this problem ) then place back the battry and connect the power cord then try to power it back on .......... it should work if not provide the system specification so that we can help you futher

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#2
March 22, 2013 at 11:46:46
first you gotta tell us what were dealing with ?
desktop or laptop ? troubleshooting will differ for each type of pc.

computers are a second home
NVIDIA GeForce


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#3
March 22, 2013 at 15:40:35
It's a desktop.
The specs are here
http://pcpartpicker.com/user/sanbma...

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Related Solutions

#4
March 22, 2013 at 16:14:14
✔ Best Answer
Have there been any storms or power faults in your area while you were away? It is possible a power spike may have damaged your system.
Begin by disconnecting from mains power. Re-connect and try booting. If that does not get you any further then your next step is to get a different powersupply. At this stage you don't know if yours is OK or damaged.
Downside to these type issues is it may not be the powersupply at fault but without a known good unit it isn't easy to narrow the field. An alternative strategy would be to disconnect all peripheral devices including drives, remove the graphics card and all but one stick of ram. work off the onboard graphics and leave only keyboard connected.
Will it boot up into BIOS for you? Do you get any BIOS Beep or error code?

Goin' Fishin' (Some day)


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#5
March 22, 2013 at 17:14:47
When the power is shut down, the fans are running too. Plus my case (fractal 1000) power led is blinking blue. I'll report my results after trying a a bare minimum boot.

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#6
March 22, 2013 at 17:23:47
sounds to me like you may be stuck in sleep mode. In that case, just hold in the power button untill the PC shuts down safely. Then restart it.

IF, you had a power spike, usually the first things to go are the modem card or the ethernet card. remove them and see if it starts up properly for you....

Some HELP in posting on Computing.net plus free progs and instructions 7 Golds


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#7
March 22, 2013 at 17:54:27
Good news is, it posts with just the mobo, 1 stick of ram and power supply. will update

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#8
March 22, 2013 at 18:09:53
I feel like I've isolated the problem.
I hooked up the mobo, 1 stick of ram, and the graphics card.
It wouldn't post.
The graphics card was the problem?
Which is extremely disappointing since It was running perfectly and now I find out it's my graphics card?
What can cause something to make it fail like that?

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#9
March 22, 2013 at 21:06:36
If it boots off the onboard video but not from the graphics card, it could be the card, the power supply (marginal/minimal power on the 12Volt Rail(s)), or your BIOS PCIe settings. Check the BIOS set up for the video settings and make sure that the PCIe port is the default graphics part. If that is not it, then you will have to try swapping out the power supply and graphics card to see which may be the problem (easiest if you happen to have either or both around in known usable condition).
Post your graphics card and power supply's detailed specs for advice related to them and motherboard information is always useful.
As mentioned briefly, a power surge or even brown out can damage a power supply and even sometimes other components. Getting a good UPS will offer the best protection from all storm and utility related power issues and the good ones offer protection from network and even co-ax cable ports to prevent storm damage through those ports as well (I once lost all home network gear and ethernet ports on all home computers when lightning struck a house next door and the surge came back through the Cable TV into my home network. I had recently bypassed the UPS cable protection and network protection in an experiment to see if it effected our internet speeds and I was being lazy and put off reconnecting them. All new router, switches, and network cards were needed.).

You have to be a little bit crazy to keep you from going insane.


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