Graphics Card Upgrade EliteDesk 800 G8 SFF

[16bitMan]

Hello,

Just purchased an EliteDesk 800 G8 Small Factor PC with the Ryzen Pro 5760 cpu. It does have a PCIe x 16 slot. I saw one model for sale comes with a 

GeForce® GTX 1660 Ti. Mine comes with integrated Intel graphics. Would I be able to install the same GPU in the 800 G8 SFF?

Any information you can give me would be greatly appreciated!

Thank you!

[DGroves · Accepted solution]

the HP "quickspecs" lists the cards HP has tested/offers for this system,

https://h20195.www2.hp.com/v2/GetPDF.aspx/c07052222.pdf

however HP can't test every video card that is/will be released.

to use a non listed card, you need to match the physical dimensions of a approved card and then see if a physically compatible card uses the same max wattage (or within 5 watts)

and since some models come with a stock and upgraded optional power supplies you also need check if the power supply you have outputs the necessary wattage for the card you want to run

your stock power supply for the SFF model is 260 watts

the fastest/most power hungry card HP offers is the Radeon 550x

the AMD Radeon RX 550X does not require any additional power connector, its power draw is rated at 50 W maximum

The FULL HIGHT card measures 145 mm in length, and features a dual-slot cooling solution which will not fit in your SFF system

 https://www.techpowerup.com/gpu-specs/radeon-rx-550x.c3194

you require the HALF HIGHT version of the RX550x

https://www.ebay.com/itm/HP-Radeon-RX-550X-Graphic-Card-4-GB-Low-profile-5LH79AT-/202672805890

https://www.bhphotovideo.com/c/product/1495072-REG/hp_5lh79at_amd_radeon_rx550_4gb.html

based on this,  the answer to your question is NO the GTX1060 draws 120 watts (max) well above the HP 50 watts limit

also the NVidia minimum recommended power supply is 400 watts, and your supply is only 260 watts, well short of what is necessary

even a nvidia 1050 card draws 75 watts, and requires a 300 watt supply per nvidia

however you just might be able to run this 1050 card if your system only has one SSD (no other drives) and only 2 dimms no optical drive and no other PCI-E cards installed except for the video card.

the reason this should work is that the HP 260 watt supply is rated to safely power a system that has all options installed and a minimal configured system will have more free watts than a fully loaded system

this means that your 75 watt card is using the same power as a system with dual drives several PCI-e cards, all ram slots filled and a optical drive installed

last, i suspect your system uses a non standard motherboard that is not "ATX" compatible,  so swapping out the HP proprietary power supply is not a option

in general "SFF" systems are poor choices for gaming as they lack any real upgrade path minitowers fair better but can still use proprietary parts that limit upgrading which is why asking before buying (not after) is highly recommended

[16bitMan]

I appreciate you taking the time to go over some specs and the links to the cards, this is very helpful! This PC will primarily be used in an arcade cabinet playing retro games from the Steam and Windows stores. I just need a little bit more gpu power and I think the RX 550X is all I will need. Thank you for your detailed response. 

[DGroves]

you might want to look into "MAME" for retro arcade gaming

https://www.mameworld.info/

there are ports that have a built-in GUI and ports that can use custom front ends

[16bitMan]

Thanks for this resource. I will definitely take a look!