Solved PC Fans (PSU, CPU, GPU, Case fans all on) But wont boot

May 18, 2012 at 12:47:59
Specs: Windows Vista, Intel core 2 Quad 2.4Ghz/ 4GB
Is my motherboard dead? - Computer has been working fine for 2 years (2 years ago I replaced a dead PSU and has worked fine since)

Today I unplugged the computer from the wall socket and moved it to the other side of the room by sliding it gently

I then plugged it back in and switched it on with no boot, all the fans start up fast then within 10 seconds slow down but still spin, monitor displays "Analog power saving mode".

So i've tried a few different monitors all of which either had no signal or were on power saving mode. I removed and re-seated all RAM sticks, removed and re-seated the Graphics card, unplugged and replugged all cables.

I've tried to listen close enough for a beep from the mobo but I really cant tell if it beeps since the fans switch on extremely loud.

Also, today I bought a new PSU thinking that was the solution, it wasnt.

Computer specs:

O/S: Windows Vista home premium (32bit)
Processor: Intel core 2 quad @2.4Ghz
RAM: 4GB (Upgraded from 2GB 6 months ago)
Graphics: ATI Radeon 5770
Can't really get any more specs since I cant switch it on to view them.

Edit: It seems like it is in a permanent low power state, i.e. on press of power button, it shuts down immediately unlike normally when it takes a few minutes.

See More: PC Fans (PSU, CPU, GPU, Case fans all on) But wont boot

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May 18, 2012 at 13:06:55
✔ Best Answer
A monitor typically enters "power saving mode" when it isn't receiving any video signal from the PC. This could be caused by either a faulty video cable from PC to monitor, or you may have dislodged the graphics card inside the PC when you moved it.

Switch off the PC at the mains socket.
Open up the computer case on the side which gives access to all the motherboard components.
Touch some bare metal on the PC chassis to discharge static electricity from your body.
Remove then firmly re-seat the graphics card & screw down it's backplate.

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May 18, 2012 at 14:10:05
"I unplugged the computer from the wall socket and moved it to the other side of the room by sliding it gently"

Why didn't you simply pick it up & carry it?

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May 18, 2012 at 14:34:21
Thanks a lot for that quick reply, Earlier on today I noticed the Graphics card had been knocked out ever so slightly, so I clipped it back into place and this did not solve it. So after reading your reply I tried again, only fully dismounted the card then put it back in and thank god it solved my problem.

Thanks again, im ridiculously happy its not the mobo.

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May 18, 2012 at 14:35:26
The machine itself is huge, its a packard bell I-power from about 4-5 years ago, it is pretty hard to just carry

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May 19, 2012 at 06:20:18
"The machine itself is huge"

Huge? The tower is probably something like 2'x2'x9" wide & weighs maybe 25lbs? It's a simple task - unplug all the cables, move each piece (tower, monitor, keyboard, mouse, etc) one at a time, reconnect the cables, plug in the power cords, then turn it on. Obviously your "gentle sliding" wasn't so gentle or it wouldn't have dislodged the video card. Next time I suggest you gently carry it across the room.

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