Re: z800 PCIe SSD upgrade 2016

Found some info on that "Compute" option..... this is out of my area of expertise:

You may have heard that there are graphics cards that can be converted to "compute devices".... and when configured that way they can't be used as a graphics card until reconfigured back to graphics card mode via this BIOS feature.  Here is a quote:   "The compute option is for an additional graphics card to tell the computer not to use it as a display device but to use it as a graphics processing unit."

You can imagine the corner you'd back yourself into if you were dinking around and enabled that option for all PCI and PCIe slots.  And because that is a BIOS setting it does not change back to defaults when you use the usual reset the CMOS/motherboard tricks.  As a result you end up flying blind and don't know how to get back to normal.  That is termed "bricking" your Z800, described  HERE.

http://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/Bricked-HP-Z800-with-compute-option-for-PCIe-and-PCI/td-p/5586274

I'd leave that alone.......