Precision 5820 - GPU Not Recognized by BIOS(?)

You may try with Secure Boot either ON or OFF.

At similar price point, a used Dell OEM RTX 4000 can support 7680 x 4320 resolution, or 8K Ultra HD.

@Chino de Oro​ Thanks for the suggestion. It was set for UEFI/Secure Boot OFF.  I changed it to ON; no change.  I even tried Leacy boot, and no change.

It's a little overwhelming trying to buy a GPU these days, when you're not a gamer or someone who has kept up with that segment of the market.  According to the nvidia website, even the GTX 16 series can do full 8K resolution (the 1630 says it can do full 8K at 60; the rest at 120), so that would seem to leave the 16, 20, 30, 40, and 50 series as options.

Couple that with all of the various vendors who produced boards based on those processors, and there's a plethora of options (and price points), not to mention the AMD options, which I haven't even researched yet!

I also have an old Dell 3007 WFP (30" 2560x1600) that I use in portrait mode as a document display, but it's Dual-Link DVI-only.  I see that nvidia's 16 series support DL DVI-D, so that's a plus, but I don't want to spend TOO much on yester-tech.  I'm currently using the 3007 with an Apple Cinema Display adapter (mini DP to DL-DVI) on the Quadro 2200, but it sometimes "loses" the monitor, and I have to un-plug and re-plug it to get that screen back on.  I'm not sure how hard I should be working to keep such an old monitor in use; it was quite an investment at the time, but then again, its time has come and gone.

Given that the 5820 is a PCIe gen 3 architecture, I should probably BE looking for an older board that will be more at home in an older slot.  Everything I've read says that a newer-gen card should work just fine in an older-gen slot, just limited by the bandwidth of the older-gen slot.  If that's the case, then either that Arc card is faulty out of the box, or something else is going on.  With the thickness of the Arc card (1.875 inches, so it's really 3-slots wide), I may be better off returning it and getting a real-live double-wide card that was designed for PCIe Gen 3. 

The most advanced thing I can EVER foresee wanting in terms of graphics is Microsoft Flight Simulator, and I hear it doesn't need a high refresh rate, so one of the older cards (that was higher-end "in its day") may be plenty for my current (and foreseeable) needs.

Still open to any other suggestions.  This forum is a great source of information - thanks to all who participate!

Update - the vendor offered an RMA, but I wasn't sure I wanted to replace the card with another, particularly in light of its being three slots wide, so I returned it to Amazon and ordered a (two-slot) RTX 3050, which should be here in a wfew days.  I'll post back after I try it.

Did the RTX 3050 work?

@MORPHEUSX​ Sorry for not posting an update.  This forum is such a good resource, I should have been a better member and kept the info flowing.

Well, sthe RTX 3050 works.  Sort of.  Mostly.  The 3050 WAS recognized by the BIOS, and I got the NVidia driver loaded just fine.  The new monitor DOES work well with it, but that's where things started to get murky.

The 3050 says it supports a max resolution of 7680 x 4320, which I'm calling 8k4k. But the monitor I'm driving with it is half of that -- 8k2k.

My Quadro P2200 says it supports up to 5120x1440, and has four ports.  I have successfully used the 2200 with a monitor at that resolution in one port, a 2560x1600 in another, and a 1920x1080 monitor on a third (never tried it with something on all four ports).  I always assumed that a GPU's max resolution was "per port", and that EACH should be able to drive a monitor at the "max" resolution.  The P2200 certainly did.

So, carrying that logic over to the 3050, I assumed I could run four monitors from four ports.  I put the 8k2k Samsung on DP, the 2560x1600 (via Apple cinema display adapter to DVI-D DL), the 5120x1440 on HDMI, and the 1920x1080 via HDMI.  The system was as flaky as could be.  Whenever I'd walk away from the machine and the screens powered off, returning to the PC to wake the monitors (I NEVER let it hibernate or sleep -- it runs 24/7), I saw some combination of:
- The 1920x1080 would come on, and it was the only display recognized

- The keyboard quit working and had to be un- and re-plugged in

- Same with the mouse

- The 8k2k would come on, but the system didn't recognize it, and all open windows (and what the system considered my "main display") all moved to the 1920x1080.

- The system would reboot

I contacted the GPU manufacturer (Gigabyte), who referred me to NVidia, and they said that 8k4k is the MAX number of pixels across ALL monitors, and that I was simply attempting push too many pixels around (I'm not looking for a high refresh rate; 60 is fine).  So, if I was running the max resolution of 8k4k, that's just over 33 megapixels.  But I'm running half of that (8k2k), so I should have half of that to "spend" on the other monitors.

1920 x 1080 - 2 MP

2560 x 1600 - 4 MP

5120 x 1440 - 7.4 MP

7680 x 2160 - 16.6 MP

-------------------------

             Total:  30 MP

So all four monitors comes in "under budget", but that's apparently not enough.

So, I disconnected the 5120x1440 and the 2560x1600, at least for now, and am using the big one (DP) and the little one (HDMI), and it seems to be OK, except that the monitors NEVER power-down (which I can live with, unless I'm damaging the new monitor).  To prevent burn-in, I have the Mystify screen saver kicking in afer 20 minutes, and I can come back to the PC in the morning, and the screensavers are still on, even though I set screens to power off after 2 hours.  I haven't rebooted in a week or so (have some things open I'd rather not have to re-start), but the next thing I was considering is to put the Quadro back in WITH the 3050.  I've read that the 3050 driver should work on the Quadro card at the same time.  Then I can (maybe?) drive the other monitor(s?) from the Quadro, and just leave the big one on the 3050.  Next time I shut it down, I'll probably try that.

The other potential conflict / relevant factor on this machine is that I've installed / removed a LOT of stuff through the years, and there may well be a conflict or junk in the registry somewhere (I DID do clean installs of the NVidia driver last time, though I'm not using the NVidia app (should I?); just the driver and the control panel).  I'm still on Win 10, and am seriously considering a jump to Win 11 in August, with a clean install, to see how many digital cobwebs that might clean out.

So, the saga continues...

@ThomasLG​ Thanks for feedback. Sounds like good idea to try the 2 GPU's for the monitors. I take it your running latest BIOS as of April etc. My issue is with a used eBay MSI RTX 3060 12Gb, this didn't work in my Dell 7010 MT, so I bought the T5820 this week and again it didn't work (not seen by BIOS so black screen). RDP to the system and not showing any detection OS confirming BIOS not seeing it. So I have to consider the card is at fault as many users I've found have installed this model, not only that I found a YT short which had the identical card (I think) in this system. Your confirmation of a RTX 3050 working in this system is another validation to me on this card being faulty.

As your having problem with KB&Mouse, are you sleeping the whole system or just the monitors? If whole system I think there are some options in BIOS for enabling different states. In Windows there are options to keep alive the USB under Power Options\Changed Advanced Power Settings\USB Settings, may help.....

Just to confirm the RTX 3060 I had was an ITX version and the MSI 3060 working in a YT Short looked longer, so maybe the ITX version doesn't work with the T5820 or it was faulty.....