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Hi, I have a z820 workstation I bought used, 2x E5-2650 v2, 8x8Gb DDR3 ECC reg 12800 RAM, Nvidia Quadro K2000, Samsung Evo 870 512Gb as boot drive and 6 Sata Hgst 2Tb Ultrastar configured as Raid 10 at the LSI2308 on board controller. Windows 10 64bit.

 

The system was running fine for a year now, except sometimes it would not boot if I had external USB drives connected, it would freeze at the HP logo. 

 

Last month it started freezing at the HP logo even without anything connected at the USB ports and it would need to restart 6-7 times before it would boot to Windows 10. If it booted it would run perfectly well for days, so I let it on.

Now it doesn't boot anymore, even if I restart it or hard shut it down, it just hangs at the HP logo, if I press f10 I get a blank screen, if then I press Esc it says "entering startup menu..." and nothing happens.

I disconnected everything (even the boot SSD) but the CPUs and 1 stick of RAM and the graphics card, nothing changed. It does respond to Ctrl-Alt-Del, Esc and F10, F12 but it does not proceed to boot. No red lights, no beep sounds but no Mini OROM display and no boot either. 

The only thinks I haven't done is to try another cpu and reflash the bios with the crisis jumper and the USB drive. I guess if these don't work I have to buy a new motherboard?

Please, if anyone has any idea, help! 

IMG-fdff83d1698410ad6d06f26641d51944-V.jpg

IMG-86f10521880bec614e79ebd3cfb5ade4-V.jpg

 

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