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HPz820 bricked after an attempt to upgrade to 3.94bios

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HPz 820

Hi Everyone

I have serious problem with my HPz820 workstation. I tried updating Bios on my HPz820. My system froze during the flash process no keyboard no mouce and frozen screen. Had no choice but to reboot, OMG after I rebooted fan startd spinning real loud no screen display and the battle begins.

I tried all suggestions on the forum nothing helped.

So I moved recovery jumper to pin 2 and 3 rebooted with 256 meg flash drive formated with freedos and fat32 512 cluster
I also copied contents of DOS folder from orignal bios upgrade on the flash drive connected it to USB2.0 port nothing

I pulled out all ram sticks but 1 in the lowest number slot. Still no display no signs of system being upgrading bios during start.

Last suggestion I have not tried to pull CPU1 out and let the system run on 1 CPU and try to recover. Any help will be much appriciated.




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