EliteDesk 805 G8 graphics card

[BM84]

I've been looking at low profile / low power video cards to add to my computer to improve game play on older games.  It appears the RX550X card listed as an accessory for my computer is no longer available anywhere.  I did see one on ebay but it has a different part number.  From what I can tell, it would only offer a small performance increase over the 5750G integrated graphics.  I have seen some low profile RX550 cards from other manufacturers.  I understand these cards are typically 140-145mm long and use approximately 50W.  1.  It appears the RX 6400 is a much better card and uses only 55W but the cards are typically over 155m long.  How long of a card will fit in my computer?  2.  It appears more modern low power cards are available but they are around 75W.  How much GPU power can the 805's power supply handle?  Must be at least 50W given the RX550X was an optional accessory.  3.  Heat is an issue with these small computers.  I check temps with the AMD software.  I think it would be bad to have a graphics card that has a cooler which just blows the hot air inside the case.  Is it better to look for a card that has a full shroud forcing the hot air out of the back of the case?  Yes I could drill a hole in the side of the case and add a fan and some kind of fan cable splitter to use the single fan connector on the system board.  I'm sure many have tried to upgrade the graphics capabilities in these computers and I sincerely any help/thoughts you can provide.

[DGroves]

your current AMD integrated Vega based video is just about the fastest there was/is at the time for integrated video

it can game at 1080p for most titles at playable frame rates,

although some video settings may need to be lowered

see next post

[DGroves]

HP makes a discrete video card for this SFF model per hp quickspecs

https://support.hp.com/ca-en/document/ish_4597643-4597687-16

however it's not sold separate and has to be added

at the time of system purchase

and requires a 35 watt cpu to be also selected

the card uses a non standard slightly modified SFF bracket

however you can take a retail low profile 

NVIDIA GeForce GTX 1660 Ti 6 GB  card  and modify it's bracket

you will also need to upgrade the stock 65 watt power adapter

to at least a 90 watt or 150 watt model,

https://www.ebay.com/itm/303948761878?chn=ps&google_free_listing_action=view_item&srsltid=AfmBOoo9Mn...

i would avoid those cheap noname 3rd party power adapters

stay with the HP OEM units

[BM84]

I have the SFF model.  Per that specs document, I assume I have the 180w power supply vice the 210w since I did not order mine with the graphics card upgrade.  I have 32GB of RAM and two of those NVMe drives.  Since the 5750G cpu maxes out at 65W, I see why best graphics option HP sold was the RX550 @ <=50W.  Not many other GPUs that are faster using that little of power except for the Intel ARC Sparkle A310 and A380 which are in the 50-55W range.  Hard to tell what discrete GPU is equivalent to the 5750G integrated graphics.  Most say its the GTX 1310 I believe.  The next bump up in low power discrete GPUs is in the 75W range to stay within the power provided by the PCIe socket.  Some of those GPUs would be noticeably faster than the 5750G.  That's what got me wondering just how many watts would be available for a graphics upgrade without the headache of trying to dismantle the PC and upgrade the power supply.  But those 75W cards are also longer so got me questioning how much space is even available.  (1)  If you add a discrete graphics card, does that automatically turn off the integrated graphics and reduce power usage or does it just remain at idle?  Can it be done in the BIOS like some of my older computers did?  (2) Per the specs document and the Adrenalin software, my PC allows only 512MB of RAM to be used by the integrated graphics.  I read elsewhere the 5750G allows 2-4 GB depending on how the manufacturer did the implementation.  Is it possible to increase the allocated memory above 512MB in the BIOS somehow?  Can't be done in the Adrenalin software.  HP's BIOS is a bit weird to compared to a regular UEFI style.  (3) Another problem with discrete GPUs is  many just exhaust the hot air inside the case vice out the back through a perforated bracket.  Not good in this SFF PC with its limited cooling ability.  The Adrenalin software says my CPU and GPU stay around the mid to upper 40 degrees C when doing basic browsing.  When I do anything else the temps spike up into the high 60's and low 70's..  I know this is within the thermal specs for the CPU but I always prefer to run as cool as possible to extend the life of the CPU.  I've only seen one company that makes a low profile PCIe exhaust fan (eBay) but it runs at 3000 RPM so I'm guessing its noisy.  Another option is to drill a 80mm-120mm hole in the side panel and add a fan but best place to put it and whether it should suck or blow I'm not sure.  Other option I've considered is to attach a 80mm fan to the outside of front panel and hope there are enough existing holes tin the back to push the hot air out.  I read other posts that say there is only one fan header on the motherboard so I guess I'd need a 3 or 4 pin splitter for that.  Ever done any cooling mods?

Thanks again for your help!

[DGroves]

GO BACK AND REREAD my first reply, the nvidia 1660 is listed in the HP quickspecs for your model system as a optional discrete card only available at time of purchase although it can be installed later if your willing to mod the end bracket on the video card and add the necessary video aux power cable

the  nvidia 1660 is much faster than the amd 550 card you mention and this nvidia card draws 120 watts which is why a 150 watt or larger is also required

[BM84]

No.  I have the 5750G (not GE) Pro in my SFF (not mini) model which is a 65W processor.  I assumed I have the 180W power supply because I did not order the optional RX 550.  "NVIDIA GeForce GTX 1660 Ti 6 GB (3 mDP and Micro-HDMI) Graphics card (only available on the Desktop Mini with 35 W processor)."  The fastest graphics option for the SFF per the specs doc was the RX 550.  Have my eye on the RX 6400 which is a supposedly a 55W GPU per reviews.

[DGroves]

see if the 1650 card is better than the rx550

the SFF half length 1650 card  does not require aux GPU power, but it is a 75 watt card

however if used with the 200 watt supply

it should work fine but may require better case cooling/heatsinks

https://www.ebay.com/shop/gtx-1650-single-slot?_nkw=gtx+1650+single+slot

here's a alternate 805 mod using a external ATX power supply by  forum member NonSequitur777

to power a 1660 card

https://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/PSU-alternatives-for-EliteDesk-...

[BM84]

Thanks again for the help.   Yes I have the 210W PSU so that's good.  Its clear I would have to cut out some of the DVD cage to accommodate the length of the graphics card. After opening up my computer and watching a few Youtube videos, I see a couple issues.  I think the big issue is the how close the PCIe slot is to the power supply.  Don't know why they didn't put the shorter PCIe port next to the power supply.  The card would have to be very slim...aka single slot thickness max to leave maybe 3/8" of space between the PSU for some air flow into the GPU fan.  That narrows the card options.  I think it would be critical to cut a hole in the side panel for a 80-120mm fan to help with airflow and cooling the back of the card too.  I saw a Youtuber with a similar SFF layout using a 3050 card I believe.  While gaming in multiple games was reasonable OK without lockups, I noticed his recorded gaming streams showed the GPU running as hot as 70-74 degrees C.  Power draw usually showed below 70W.   I know he didn't do any cooling mods but I don't know if ran his tests with the side panel off.