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‎01-08-2020 02:59 PM

HP Recommended
Product: Z420
Operating System: Microsoft Windows 10 (64-bit)

From a days I have a problem with z420.  The workstation doesn’t start, it s impossible see bios, and after 20 second power supply go at the max speed. I try to change power supply but I not solved problem. Anyone can help me please?

 

regards

1 ACCEPTED SOLUTION

Accepted Solutions

‎01-09-2020 08:58 AM

HP Recommended

now the z420 is reborn!! but i also cancel rom by yellow button on motherboard.

 

afetr push yellow button i follow your instruction and workstation is same new!!

 

GRAZIE !!!!!

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7 REPLIES 7

‎01-08-2020 07:43 PM

HP Recommended

search this forum for BIOS RECOVERY POSTS BY "SDH"

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‎01-09-2020 12:33 AM

HP Recommended

Can you put a link? I don’t find it. Regards

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‎01-09-2020 06:11 AM

HP Recommended

Go to the box on the top that says "enter search term", type in  

Crisis Recovery Jumper Z620 Z420 Z820 Revealed 

 

https://h30434.www3.hp.com/t5/Business-PCs-Workstations-and-Point-of-Sale-Systems/Crisis-Recovery-Ju...

 

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‎01-09-2020 07:42 AM

HP Recommended

thank you. I will try this afternoon

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‎01-09-2020 08:23 AM

HP Recommended

hi get all step you suggest, but when i put bridge on normal position, the z420 does not run and fun go at max speed.

 

what do I do?

Regards

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‎01-09-2020 08:58 AM

HP Recommended

now the z420 is reborn!! but i also cancel rom by yellow button on motherboard.

 

afetr push yellow button i follow your instruction and workstation is same new!!

 

GRAZIE !!!!!

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‎01-09-2020 12:10 PM

HP Recommended

and another success,...thanks to forum poster "SDH" taking time to document how to do this!!

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