Hi all,
i made the mistake to set all PCI(e)-ports of my Z400 to "compute=yes" in the BIOS-settings. The result is that my graphics-card isn't recognized anymore which my machine tells me by beeping six times without giving any image or going any further. I also tried another graphics-card with the same result (both of them are PCI-e-cards).
I wanted to reset the BIOS-settings to default. So what i've done so far is:
- A CMOS-Reset by diconnecting all wires, pressing the CMOS-reset-button for a few seconds, plugging in the stuff again and booting
- Removed the CMOS-battery for a few days
- Set the jumper "Crisis Recovery", landed in BIOS-recovery-menu, flashed the bios-image version 3.57 again (did this by setting up a recovery CD with this image: http://support.harlander.com/artikelsupport/computer-und-workstations/hp/hp-z400-workstation.html#drivers). Flash was successful.
But all of these points didn't fix the issue in my case.
A few guys have already had this problem and solved it by using an old PCI-graphics card (VGA). But i don't think that this is going to work in my case because all my PCI-ports are set to "compute", not only the PCIe ones.
The question now is: how can i really reset my BIOS-settings, so that this "pci-compute"-option will be set back to "no"? I found a few good answers here: https://h30434.www3.hp.com/t5/Desktops-Archive-Read-Only/z400-workstation-gives-6-beeps-amp-red-light-after-changing/td-p/5081336/page/2#messageview_2 , but nothing helped in my case.
Thank you guys !