HP Z820 workstation: Z820 HP does start, fans at high speed, no BIOS, no signal in the monitor.

Hello world

My listing of workstation: HP Z820, Dual Xeon E5-2687W @ 3.1 - 3, 8 GHz, graphic card Nvidia quadro K5000, 64 GB RAM, 2 x 500 GB HARD drive.
The workstation is still under warranty.

They arrived after upgrade to Windows 10 (from 8.1 to Windows) and put such BIOS updated as recommended by HP support Assistant.

I was on the process to refresh the 10 Windows , then the system automatically tried rebooting to complete the update, but he never did it again! and then the fans running at full speed. After waiting for 2-3 minutes, I had to hold the power button to turn off the computer.

After waiting for about 10 minutes, I tried to start the computer, but the same thing happened: you press the button power and then after about a minute , fans rotating at high speed, no signal, no BIOS, no noise, no power in the keyboard or mouse, the blue LED light to the rear.

So I let the computer without power for 7 hours... (The power cable is disconnected).

At 11:00: reconnected the power cable (HDD and DVD ROM are DISCONNECTED) and tried to start but the same thing happened.

Now, I'm on google to find a solution:

1. power? (Have not yet been tested food.)
2 motherboard? No damage to the capacitors or anything else.
3 reset the BIOS/CMOS? (Power disconnected cable) Removed the battery and put it back it, held the CMOS button for 5 seconds.
4 graphics card? Replaced the K5000 Quadro with a Quadro 4000.
5. exercise of the power of the system? held the power button with the power cord unplugged for 30 seconds.

None of the above solves the problem but now when you press the power button / the fans start to run at high speed immediately! This got worse?

Any help would be greatly appreciated. Thank you.

The problem is a faulty motherboard and it was replaced under warranty.

Tags: HP Desktops

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