RTX a2000 running fans at full speed, but no video in Elitedesk 800 G4 SFF

[CAS97]

It has been frustrating. I know the card works. I played games on it to test it while waiting for the Elitedesk to show up. First G4 I can believe was a dud because it was pretty bad inside. But two in a row is bizarre and unlikely. 

I don't currently have another card, but I was looking into the RX 6400 before finding the a2000 for cheap. Because usually I am weary of Nvidia products. Never had much luck with them for some reason.

[NonSequitur777]

@CAS97,

@DGroves, any thoughts/perspectives on this?

Kind Regards,

NonSequitur777

[DGroves]

the nvidia rtx a2000 is a professional (low profile) series card, it's from the nvidia "Ampere" series and as such does not offically support Legacy Bios based systems for these older motherboards it's a try it and see if it posts with a display

many legacy systems will not work with these cards

the elitedesk 800 G4 SFF came with a nvidia quadro p400 (2GB) card that draws 30 watts

your a2000 card draws 70 watts, which is more than twice what HP specs for power draw on the PCIe slot(s) on this system

not all systems are able to supply the 75 watts to their pci-e slots, many SFF, and AIO based systems have low wattage power supplies that preclude using a 70 watt card and the stock 250 watt supply is right on the edge in a minimal system config that only uses 2 mem modules one SSD drive and the video card anything more and you quite possibly will exceed the power supply's ability to provide power  but i suspect the issue is not power related in this case

and since the 800 G4 is a UEFI/Legacy compatable system, that should not be a issue

the fans ramping up when the card is installed indicates a HARDWARE related issue such as a bad card or incompatable hardware for the 800 G4 system

check the bios settings, (doing a factory default reset is recomended)

https://support.hp.com/us-en/document/c03840403

[CAS97]

Update: I put the GPU back into my main PC, just in case I might have damaged it in some way that makes it not function correctly. This doesn't appear to be the case because it is still running fine and allowed for the drivers to be installed. Even without drivers it functioned fine and showed my BIOS screen. 

Update on G4: I have updated the BIOS to the latest version. I have Secure Boot set to off. I have run HP diagnostics, which wasn't that helpful because it doesn't test the PCI-E slot like my Lenovo Thinkcentre does, but it said everything it could test had passed the tests. 

I currently have a GT 1030 set to be delivered by Amazon tomorrow. It was the cheapest card I could get on short notice, and return quickly, even if it is electronically PCI-E x4 with a physical PCI-E x16. If it doesn't work then I don't know. I guess I just got two dud G4s with partially working x16 slots since the x1 wi-fi card works in it. 

[CAS97]

I have noticed a motherboard revision with the two G4s I ordered. The one I sent back had a clip on the x16 more akin to the traditional style, but acted more like a seesaw. As in you push it down, pull up on the card, then you have to push it down again to fully free the card. The current G4 I have has this side piece you push in. Unless this has nothing to do with revisions and is just refurbishment/manufacture choice I have no idea. 

Spec wise it is running this
i5 -8500 (65w)

32GB of dual channel memory (28w)

1 SATA SSD (10w)

The RTX A2000 (70w)

Total: 172w

Now PCpartpicker probably isn't the most accurate when it comes to actual wattage, since components can have spikes when under load, however there is still a decent amount of headroom, which is why I specifically went with the G4. Even then these components, when running at desktop, would have a significantly lower wattage outside of the initial boot spike.

As mentioned in another post I just made the card is working perfectly fine. I'm typing to you on a display run by it right now in my main computer. So unless it is a motherboard revision I have no idea why it would be incompatible if other users have reported, and shown off, builds with it as their graphics card. 

[DGroves]

FYI, HP cloud recovery lists two win 10 restore images for this model, i would try the image that has the nessary drivers intergrated

note:

HP Cloud Recovery download tool (Cloud Recovery Client) is available under Software and Drivers section on the support page.

https://support.hp.com/us-en/drivers/selfservice/hp-elitedesk-800-g4-small-form-factor-pc/21353718

https://ftp.hp.com/pub/caps-softpaq/CloudRecovery/crsupportedplatform.html

[CAS97]

So the GT 1030 I ordered works in the same slot that the RTX A2000 does not work in. It produces video at the BIOS and in Windows and it is displayed as a display device. Drivers can be installed and it acts like a normal GPU. 

I checked the power supply and it says its rated 250w 80 plus Platinum.  

At his point what we know is:

GT 1030 works  in the G4

RTX A2000 does not work in the G4

RTX A2000 works in my gaming rig

Conclusion: The PCI-E slot is working on the G4 and the RTX A2000 card is working as well... but they don't work together?

I don't understand unless its the PSU doing something weird or this PCI-E x16 slot is somehow limited? Like up to x8 is fine, but the remaining 8 pins to make it x16 are borked and there just isn't a conclusive way to tell? 

[CAS97]

@NonSequitur777 

In your build your PSU is a L08417-004, while mine is a L08417-002. I don't know if that makes much of a difference since they are both 250w PSUs, but maybe its something to note? 

Things I also noted is that your motherboard was a L01482-001 while mine is a L65200-001. My motherboard also has L65200-601 on it. The previous Motherboard I had was a L01482-001, which is your model, but it didn't work either. Granted it was filthy. 

L65200-001

L22110-001/L01482-001

[NonSequitur777]

@CAS97,

The two power supplies are identical -at least the wattage, casing, dimensions, wiring, and the "P2" 7-pin config are identical:

Kind Regards,

NonSequitur777

[NonSequitur777]

@CAS97,

I used both motherboards: the L01482-001 motherboard (= HP EliteDesk 800 G4 SFF), as seen here in my 800 G3 SFF to 800 G4 SFF Upgrade: https://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/Upgrading-HP-EliteDesk-800-G4-S... (this motherboard is now mothballed), and the L65200-001 / L65200-601 / L49080-001 motherboard (= HP EliteDesk 800 G5 SFF) is my current EliteDesk 800 G5 SFF Upgrade -using it right now, btw: https://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/Upgrading-HP-EliteDesk-800-G5-S....

Kind Regards,

NonSequitur777