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Windows 7: PC turns on, no image and no activity

19 Dec 2014   #1

Windows 7 Home Premium x64
PC turns on, no image and no activity

Hello all!

I was looking for some help, if possible. Hope this is the right thread.

Yesterday, I came back from work and turn on my home desktop. It started smoothly and okay, as usual. Windows loaded and I attempted to move my mouse and bam. I lost the image and I on my screen and thought it was the screen that stopped working. It's not; I tested it on another computer and its working just fine.

So, currently, the situation is:

I can power on the pc, he does the inicial beep and then nothing else happens. No image on the screen (no HP logo, no BIOS...), the processor light (yellow-ish/orange, is it the processor light) is always off, no blinking and the only thing that happens is that I hear the fans working. Also, the power supply light on the back is on.

I can't figure out what to do since I can't even reach the BIOS (so no testing involved). I appreciate all the good advices you guys can give me.

This is the model of the PC:
HP Pavilion Desktop PC Product Specifications | Suporte HP®
And the only thing that is different from that config are the memories and the graphics card (nVidia 210) that have been replaced a couple of years ago.


My System SpecsSystem Spec
19 Dec 2014   #2

windows 7 home 64bit

Hi ... No image would suggest you have Graphics problems .. So that would be the first thing to check ... Remove the Graphics Card and try the on-board Graphics ...

Read the Tutorial below also ...

Troubleshooting Windows 7 Failure to Boot
My System SpecsSystem Spec
19 Dec 2014   #3

Windows 7 Home Premium x64

Hi, maxie.

Thanks for your reply. I'll check the graphics card and post the results asap.

Regarding that tutorial, I've ready it but I think it only applies if the machine displays any image or processes info at all, which it does not
My System SpecsSystem Spec

19 Dec 2014   #4

windows 7 home 64bit

Yes make sure you Remove the Graphics Card ....
My System SpecsSystem Spec
19 Dec 2014   #5

Windows 7 Home Premium 32bit

Does your monitor have a power status light,that is--green for power on,orange for standby and black when no power to the monitor?If so,then operate the monitor's power switch which should be on the panel with other controls.Whenever I have even a momentary power cut,my monitor,Benq, won't work until I physically operate the switch.
My System SpecsSystem Spec
19 Dec 2014   #6

Windows 7 Home Premium x64

Hey again. Yep the monitor has that status light but its not the monitor because i tested it on another computer.

Well, I removed the graphics card and the power supply stopped working. No more status light, PC wont turn on even with graphics card back on.

EDIT: got it to power on again, with and without graphics card. Problem remains the same so its not the graphics card
My System SpecsSystem Spec
19 Dec 2014   #7

windows 7 home 64bit

If it just the PSU which is 300w it will not be so bad to replace ...
My System SpecsSystem Spec
19 Dec 2014   #8

Windows 7 Home Premium x64

Anyway I can assure its the PSU?
I dont have much space on this case for a new PSU. Also, I have no ideal what to pay attention for when buying a PSU. :/
My System SpecsSystem Spec
19 Dec 2014   #9

W7 Ultimate SP1, LM18.2 MATE, W10 Home, #All 64 bit

If you disconnect your HDD and then start your PC, do you get a warning message ?
My System SpecsSystem Spec
19 Dec 2014   #10

windows 7 home 64bit

We can only assume it is the PSU as there is no LED light any more ... Of course it could be the Motherboard also which is why i am hesitant to suggest a PSU ....
My System SpecsSystem Spec

 PC turns on, no image and no activity

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