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Windows 7: Have to keep turning power supply on and off until PC starts

11 Nov 2015   #1

Windows 7 Home Premium 64bit
Have to keep turning power supply on and off until PC starts

Hello there, recently I've been having a few problems with my PC. When I try to turn it on, the lights will start up, as will the fans, but nothing appears on my screen, my monitor showing a "no signal" message. However, if I keep turning the switch on and off at the back by my power supply, and pressing the power button it will -eventually- turn on.

When it's on it seems to be slower than how it was before I encountered this problem, about a few weeks ago, sometimes programs would randomly stop responding for example.

Is there any simple troubleshooting I can do, to find the issue?

Sorry if this is in the wrong area by the way, mods.

My System SpecsSystem Spec
11 Nov 2015   #2

Win7 Pro 32bit

Power supply is dying. Time for a new one.
My System SpecsSystem Spec
11 Nov 2015   #3
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot

Quote   Quote: Originally Posted by OvenMaster View Post
Power supply is dying. Time for a new one.
I second that. Replace it before it blows something in the system out and costs more money.
My System SpecsSystem Spec

12 Nov 2015   #4

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1

stop turning it off and on< get out the door< do not stop<buy a power supply< go home<replace power supply
My System SpecsSystem Spec
12 Nov 2015   #5
Lava King

Windows 7 Home Premium x64

Looks like I'm going to be the dissenting voice here.

It's not necessarily the power supply, I have run into the same symptoms on some older motherboards with bad capacitors.

However, swapping in a new power supply is a relatively quick and easy way to find out if it truly is the power supply.
My System SpecsSystem Spec
12 Nov 2015   #6

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1

LavaKing, you are correct, we jumped like frogs. In the same sense the PSU is easier, like you say, but probably a tad less expensive as well. Much less chance of killing a CPU, RAM or breaking something. I must be lucky, in all of the PC's I've built, last week was the first time I have had a component fail and it was the PSU. It was kind of easy to figure why the box would shut off an hour after running and restart with one button press and die again later. I had added 2 HDD's and was pushing the tolerances of the PSU.
Anyway, we all appreciate other members knowledge and experience.
Thank you
My System SpecsSystem Spec
12 Nov 2015   #7

Win7 Pro 32bit

Quite right, LavaKing... OPs problem could indeed be bulging caps. Though every time I've had the OP's symptoms, a new PSU always fixed me up. I was lucky enough to have bad caps only on a video card, not my mobo.
My System SpecsSystem Spec
25 Nov 2015   #8

Windows 7 Professional x64

I have been battling this same issue for some time. Dell monitors would not come out of power save on start up. Disconnected USB hubs on screens and things were OK for a while. Plugged in other USB devices to computer and screens would go into power save. Plugged in one too many and computer screamed at me. Ordered a new, bigger PSU (750W) for overnight delivery. Did a back up onto external HDD and on shutdown got a BSOD "Power State Failure". Replaced PSU and with all three screen USB hubs, ext HDD, licence dongles, webcam, bar fridge etc in all USB ports it is running sweet!
My System SpecsSystem Spec
25 Nov 2015   #9
Layback Bear

Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64

Because we have a no name power supply and a no name motherboard I would start with the no name power supply.

ludwig354 please complete this tutorial by Brink so we have some idea what we are working with.
Be sure you list your system power supply.

System Info - See Your System Specs
My System SpecsSystem Spec

 Have to keep turning power supply on and off until PC starts

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