Watch why go to sleep?

Yesterday, my PC worked perfectly. But this morning when I pushed the power button, power light turned on normally and there was a normal voice of the case but a few seconds after the PC gave this error on the screen: "Monitor going to sleep" and PC fans started making a strange noise. I could not stop PC normally so I disconnect the cable and reconnect it.

After I tried again, but the PC gave the same error. I tried too many times, but it did not work.

I checked all the cables. After that I connected the monitor to my laptop with an HDMI cable, the monitor worked perfectly.

I have the latest version of the drivers. I always check the updates. But I never updated my BIOS.

It seems that I have a problem with my camera. And my monitor is still sleep like the sleeping beauty.

How can I solve this problem?

(I have HP Pavilion m9531)

(I'm sorry for my bad grammar)

It could be the power supply, the device to short-circuit any attachment (bad printer, USB key, keyboard, mouse, network connection), problem of memory, graphics card fan not turn not and the video card could have overheated, bad capacitors (rounded or leak a brown substance or black). The first thing we do is to ensure that it is not under warranty.  If this is the case, contact HP.  If not, remove the cover and inspect the Board for bad capacitors, the fans don't turn not, unplug all nonessential items, like the hard disk, DVD, floppy disk drive, if you have one, any external devices (Yes the monitor) and turn on the computer. He doesn't stay? If so, stop now in the power button for 5 seconds or so, flipping the power switch on the power supply or pull the plug. Connect the monitor and then an element at the same time leaving the drive with your important data as the last element. If he does not stay on. Try to use only a chunk of memory and try each memory slot, try the next track, etc. If this does not work, the best estimate is the power supply (if you have an ohm meter - test first the power supply).

Tags: HP Desktops

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