Old PCI with a DVI connection HP Compaq 8100 Elite Small Form Factor PC

[danielcho1]

i installed a fresh copy of windows 10 home 64bit on this computer.

Currently im using a VGA monitor which is fine, but i just wanted to add in a second monitor

I put in an old PCI dvi card (which works) that i pulled from an older DELL dc5800 sff for the purposes of adding a second monitor.

This card worked on the 5800 but it won't detect/work in the newer 8100. 

why is that?

[TheOldMan · Accepted solution]

According to this manual

http://h10032.www1.hp.com/ctg/Manual/c02034672

That PC has a VGA and Display port as output.  Page 6-5 under item heading "6.3 Upgrading" indicates

"These systems provide direct, dual-monitor support; a VGA monitor and a DisplayPort monitor can be connected and driven simultaneously."

Just get a display port to DVI cord or adapter.

BTW: since this is a Business PC, some random graphics card may not work in this PC.  This support page indicates what configurations were available from the factory

https://support.hp.com/us-en/product/hp-compaq-8100-elite-small-form-factor-pc/4098436/document/c020...

Scroll down to the "Graphics" section to see what was available.  Some other graphics cards may work, but those indicated will work.

[danielcho1]

thank you.

bought an adapter and it worked flawlessly

[TheOldMan]

Excellent.  Glad to have helped