System BIOS issues - how do I restore to latest version?

[jakedaly]

Last week I downgraded the BIOS on my HP Z440 Workstation to version 1.62 Rev A. I got the bits and the instructions from the HP Drivers and Software support page for the product:

https://support.hp.com/us-en/drivers/selfservice/hp-z440-workstation/6978828

The issue that I was seeing is that after turning on the PC, there was no signal coming out of the DMS-59 port (on the NVIDIA 315 NVS graphics card that I was using). I've connected a DMS-VGA adapter and then try connecting the VGA cable to a display port on a Dell monitor, but the monitor is not picking up a signal--previously (before the BIOS downgrade) it was working fine. All other lights and noises on the desktop computer leave no indication that anything is wrong--but I have no way of checking because I cannot see the display of the computer. I have an ethernet cable attached to it and am able to use the command prompt on a different computer to successfully ping the HP Z440 that is having issues. I would just remote into it, but I never "enabled" remote connection in the HPZ440's settings. 

I tried seeking help on a different forum (https://h30434.www3.hp.com/t5/Desktop-Video-Display-and-Touch/Graphics-output-doesn-t-work-after-I-d...) but was instructed to come here. 

At this point, I don't even want this older BIOS version, I am fine with the latest BIOS version. I tried restoring the BIOS following the instructions on this page :

https://support.hp.com/us-en/document/c05163478

but only could get to step 8. (I had heard the 8 beep audio code, but then the system never turned back off). 

Any suggestions? The computer is new, so I have no problem doing a full blown restore, although I thought that's what that document that I just listed was aimed at. 

[SDH]

Try from within BIOS.... I was working on a Z640 recently and it has the ability to update BIOS from within BIOS like many of us prefer to do (it is safer given that no OS is loaded).  I found that this approach had a primative ability to initiate contact with HP from within BIOS for BIOS update and downgrade.

I had loaded the supposed fix for the latest Intel mess, and was quite unhappy with the result.  This approach allowed me to navigate a bit and fix the issue.  I ended up with an older version than the messed up new release, but this older version was newer than the one that already was on the Z640.  It came from the mothership.

Try that and let us know....

[jakedaly]

How do I do this without being able to see what's on the display of a monitor? The main issue that is preventing me from really doing anything is that I cannot see what is going on. I turnon the workstation and my monitor does not detect a signal from the NVIDIA 315 NVS graphics card