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13788
April 23rd, 2022 10:00
Nvidia A2000 in SFF - Precision 3450 PCIe 3.0 x4 slot - will it work?
Has anyone tried yet to put Nvidia A2000 in any of SFF into PCIe 3.0 x4 slot?
(mine is Precision 3450 / SFF running on W580 PCH/chipset, but location of 16x PCIE {Gen3} won't allow plugging in dual-slot cards unfortunately, PowerSupply should be ok since I'm already running Nvidia T1000 {50W} on my another machine having 200W PSU with i7-8700 HT with 65W documented consumption, peaking to 117W in turbo boost mode )
I've watched a video on youtube about a year ago experimenting on Optiplex and LowProfile cards (up to 70W), dual slot ones working in PCIe 4x (four lanes, not x16 lanes), there were no significant performance drop (for gaming/benchmarks) back then (due to GeForce LowProfile lower bandwidth requirements).
Will Nvidia LP A2000 even work in 4x PCIe slot (open-ended)?
Thank you.
Thinh Bui
2 Posts
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September 3rd, 2022 17:00
It works very well.
https://www.youtube.com/watch?v=RGAlf1k2syM
From my experience, as long as the PSU provides enough power, all the 70w GPUs work. Here is another video I tried with the GTX 1650. The rig I own has 240w PSU.
https://www.youtube.com/watch?v=Ho1pgwsDHYA
speedstep
9 Legend
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47K Posts
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April 23rd, 2022 17:00
No it wont work.
sam55todd
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243 Posts
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April 25th, 2022 09:00
Sorry speedstep, unfortunately after extra research had to unmark your post as solution.
I've read in AlienWare forum what some people managed to run Ampere 30x0 class cards over PCIe 3.0 and 4x PCIe lanes.
https://www.dell.com/community/Alienware/PCI-e-3-0-x4-for-ampere-3080-3090-question/td-p/7692319
Therefore unless someone actually tries it and reports findings or I get a hands on A2000 for trying it myself - there's no answer so far.
Or getting at least some sufficient reasoning behind this conclusion would be great.
I do have some doubts though on power draw requirements (Nvidia A2000 says it needs 70W as per specs.) over x4 PCIe (v3.0) since A2000 doesn't have extra power connectors, but hoping reduced bandwidth will use significantly less power too.
p.s. It's not a question of efficiency (e.g. whether or not it's justifiable to use expensive card designed for 16x PCIe 4.0 in 4x slot of PCIe 3.0 configuration neglecting all performance loss), but rather technical curiosity.
sam55todd
2 Intern
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243 Posts
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September 3rd, 2022 17:00
Thanks, excellent test setup, since I'm ok with noise - will start pulling up the budget for New Year celebration present, especially considering what prices already have dropped from £600 to £300 with crypto market crash and Next Nvidia GPU release date looming.
Chino de Oro
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8.1K Posts
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September 4th, 2022 18:00
Similar to your observation, I see that Optiplex 7060 is outfitted with a 260w PSU, factory fully loaded with components like SSD, optical drive, and it can run an i7-8700 with dual Radeon RX550, one was on a x4 lanes slot. It can run 24/7, very stable, no power issue at all.