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kletos Honor Student
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Can't enter BIOS in Z620 after messing up Secure Boot

I turned on secure boot and the workstation wouldn't boot (made beeping sounds).

 

Did a clear CMOS and Windows booted normally, however I don't seem to be able to see the HP splash screen anymore, just a POST screen and hitting ESC / F10 doesn't seem to do the trick. It just boots all the way into Windows.

 

Help! Please...

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kletos Honor Student
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Can't enter BIOS in Z620 after messing up Secure Boot

Follow up: I've also used the BIOS utilities to try tweak the settings to no avail...

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chrisa Honor Student
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Can't enter BIOS in Z620 after messing up Secure Boot

I have the same problem with my Z220. No previous issues but there is no splash screen and pressing ESC or F10 does not work at the POST prompt.

Using HP performance advisor, I can increase the POST delay but it will not allow me to change the Intel VT settings.

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Grad Student Grad Student
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Can't enter BIOS in Z620 after messing up Secure Boot

You may want to try the followings:

 

1. Remove power cord> remove CMOS battery > Wait for 30 seconds.

 

2. Upgrade the BIOS to v3.05 and test it again.

 

If you can go into F10 Setup, please set the factory settings and try it again. But it looks like you cannot go in. Hope you can go into F10 Setup after removing CMOS battery.

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chrisa Honor Student
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Can't enter BIOS in Z620 after messing up Secure Boot

Ok I've tried this. It does cause booting to stop and display the 'clock has lost its time and settings' message. It says "Press ESC for startup menu". However, pressing esc or f10 on a usb keyboard and a PS2 keyboard has no effect.

Thus I still cannot enter the BIOS/UEFI settings!

 

Thanks for your help

 

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Grad Student Grad Student
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Can't enter BIOS in Z620 after messing up Secure Boot

Clearing CMOS will lose the time. If USB keyboard is connected to USB 3 port, you need to attach it to USB 2.0 port. However you are still seeing the problem even with PS2 kbd. So this is not the USB 3 issue.  If your keyboard is working fine, I think you have to repalce the system board. Plese call HP Support to replace it.

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