390sff , thanks for telling case size too.

but you never told w10 32 bit or 64?bit?  why leave out such a key fact. (par though here.)

firs off this is not some UEFI class PC, At all, it is old. 2011 made, no even hear w8 release date and not UEFI forced but IDK what BIOS a10 covers.

the

this is paste out of your spec sheet, not carefully that 2000 chip and that Microsoft does not support

due to intel, no dell, ending that driver, NOW.

the intel iGPU dead pool is here. 2000 on your CPU is dead for w10. and the 3000 HD. too. DOA,

so the answer is , get the HD6450 from AMI/ATI and run that,  I promise it runs.

The problem is what w10 do you run,?  32/64?

And how to use w10, and learn how to put w10 into SAFEMODE (like the olden days F8)

put the PC in safemode, and then load the PCIe card driver, with PCI GPU present.

or install w10 again from scratch but only with the 6450 present,  make the installer use  that. and win.

the iGPU on the 390 is not chopped liver, dog meat. read that link ! intel ended support, on many iGPUs.

BIOS is A14

Hi

Sorry I missed the OS version - it is now x64 bit W10

As per my post I have the HD 6450:

HD6450 1GB - DVI-D / HDMI

PN 299-2E164-810SA - SKU#11190-02

It still does not run or detect it. I will try the safemode boot