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- Z840 maximum supported resolution over display port

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07-25-2023 07:12 AM - edited 07-25-2023 01:41 PM
Hi all,
I have a Z840 with the latest bios with an HP Quadro M5000. I've been thinking of getting an Ultrawide monitor such as the LG 40WP95CP.
https://www.lg.com/uk/monitors/ultrawide/40wp95c-w/
But I'm not entirely sure the resolution is supported. I cannot find an HP version of the spec for the M5000 however some of the available generic specs say 5120 x 3200 is possible with dual DP connection but I'm not sure how this would work, does anyone have any experience of this?
Additionally Amazon UK has a review of this monitor saying the Z840 would only boot with additional monitor in a higher port which would be dealbreaker....
But I'm not sure whether this might have been fixed by the latest bios from April 2023 or might be fixable with a bios setting.
If anyone has any thoughts it would be great.
Ollie
07-25-2023 02:40 PM
According to HP Z840 QuickSpecs (HP document c04400043 Version 33 of May 1 2017), pages 78-79, Graphics Controller NVIDIA Quadro M5000 installed in HP Z840 workstation is capable of Maximum Resolution (using its DisplayPort output):
- up to four 4096 x 2160 x 30 bpp @ 60Hz displays
- up to two 5120 x 2880 @ 60Hz displays
- supports High Bit Rate 2 (HBR2) and Multi-Stream Transport (MST)
Whereas, using its DL-DVI(I) output, performance is limited to:
- up to 2560 x 1600 x 32 bpp @ 60Hz
Maximum number of DisplayPort displays possible (may require MST
and/or HBR2):
- 4 1920x1200
- 4 2560x1600
- 4 4096x2160
- 2 5120x2880 (requires dual DP input 5k displays)
Maximum number of monitors across all available Quadro M5000 outputs
is 4.
07-25-2023 08:37 PM - edited 07-25-2023 08:44 PM
video resolution is set by the installed video card hardware, same for the "display port" revision with ver 2.1 being the most common nowadays both displayport rev and the video card specs determine the max video resolution
https://tripplite.eaton.com/products/displayport-cable-types
the quadro m5000 specs
https://www.techpowerup.com/gpu-specs/quadro-m5000.c2756
newer video cards such as the nvidia rtx4080 support one HDMI 2.1 port and three DisplayPort v1.4a
https://www.nvidia.com/en-us/geforce/graphics-cards/40-series/rtx-4080/
said video card needs to fit into the desired system the z840 is a full sized tower so just about any video card will fit physically
then there is the power needed for the video card/computer,.... again the z840 with the optional 1125W supply will work whereas the base 850 watt supply will most likely not support a rtx 40 80 but will support some older model cards keep in mind that the z840 is not a consumer system as such nvidia's power recommendations do not apply to workstations/servers i recommend taking the HP z840 "quickspecs" page, note the highest HP supported card model, then google for that card models wattage and use that as a guideline for the max wattage
the above also applies to AMD's latest 7000 series cards
https://www.amd.com/en/graphics/radeon-rx-graphics
07-26-2023 06:45 AM - edited 07-26-2023 07:40 AM
Many thanks for that useful info guys, I hadn't realised that individual graphics card specs would be in the main HP Z840 Quick Specs.
It looks like therefore that the Quadro M5000 will work at the resolution of the LG 40WP95C, 5120 x 2160.
In terms of the dual DP input required for that resolution, the monitor itself only has one DP input Would dual input still work if one input has to go through an adapter from DP to Thunderbolt or USBC? I presume not.
Would an adapter like this then be needed?
https://www.siig.com/thunderbolt-v3-to-dual-dp-adapter-dp-1-2.html
EDIT: Just realised that adapter is probably not bidirectional. Looks like most of these adapters go from a computer with USBC / thunderbolt to a display with dual DP, not the other way round which Is what I need.
07-26-2023 03:20 PM - edited 07-26-2023 03:26 PM
single and dual link DVI connectors look almost exactly the same however the dual link HDMI has some extra pins that the single link DVI does not have, DVI and HDMI are mostly compatible with each other with adapters available to convert either spec into the other
https://www.diffen.com/difference/DVI_vs_HDMI
display port when using the v1.4/v1.4a spec only uses one port to display a 5120×2880 @60hz video stream
note the v1.4a spec has several improvements over 1.4 but nothing major, so for almost all users consider them equal
https://comprehensiveco.com/displayport-1-4/
https://juicedsystems.com/blogs/news/displayport-1-2-vs-displayport-1-4
display port is now capable of using the USB "C" type connector this port can be multiple format IE display port over the USB 4 photocall, or thunderbolt 3 over the USB connector or display port signals using the usb c style connection
very few vendors support all of the formats on the USB "C" connector and those that do are usually laptops not desktop systems
your monitor and video card will only need ONE display port connection for the monitor
07-28-2023 05:00 PM
short answer 5k on a 8 year old video hardware? "NO"
longer answer:
go back and reread what i wrote, nowhere did i list, say, or imply,.............. anything on the displayport 1.2 specs i explicitly mentioned displayport 1.4 specs and the nvidia rtx 4000 series cards
you can easily find the hardware specs for your current m5000 video card (and most others) on the nvidia website and also "Techpowerup" website