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Aug 21, 2020 NVIDIA GeForce RTX 3090 is a 3-slot graphics card. New photos of the upcoming GeForce RTX 3090 graphics cards have emerged. The card named RTX 3090 appears to occupy three slots on the motherboard, as the I/O bracket clearly has 3 fingers. It is also much longer and wider than the RTX 2080, pictured as well for the comparison. 3 slot video cards, in SLI? Thread starter theHeat; Start date Jun 13, 2012; Jun 13, 2012 #1 T. TheHeat Limp Gawd. Joined Jul 3, 2004 Messages 338. Hey guys and gals. Running 3 Monitors by Installing Second PCI Express Card: I wanted to run 3 monitors on my PC but it only had a single video card slot. That meant I could only run 1 video card and a single video card usually only supports 2 monitors. Some high end cards support 3 or more monitors but of course I wanted to. The triple slot cards take more space, that's the only difference. That additional space they occupy usually means they have superior cooling, though. 3 slot video cards, in SLI? Thread starter theHeat; Start date Jun 13, 2012; Jun 13, 2012 #1 T. TheHeat Limp Gawd. Joined Jul 3, 2004 Messages 338. Hey guys and gals.

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Many users wonder if it's possible to put more than one video card into a single computer. The answer is yes, but depends on the cards and whether or not you want them to work together (e.g., SLI or CrossFire). The following sections contain information on different scenarios.

  • Using multiple cards in general.
  • Using more than one card together.
  • Before you install.
  • Windows 98 multiple monitor issues.

Using multiple cards in general

If you'd like to install more than one card, but don't need them to work together, you need to meet the following conditions:

  1. There need to be available resources on the computer. By this we mean appropriate slots and space.
  2. Ensure you're not using an EGA, CGA, or VGA card in one computer.
  3. Ensure you're using an operating system that supports multiple monitors. Almost all modern operating systems support multiple monitors. Anything earlier than Windows 98 does not support multiple monitors.
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Using more than one card together

User who are looking to use more than one card to increase their graphics processing power, such as an SLI or CrossFire setup, must meet the following requirements:

  1. You need two or more SLI or CrossFire capable GPUs and bridge to connect the cards.
  2. All cards must use the same GPU, but don't necessarily need to be from the same manufacturer.
  3. All cards need the same bus width and amount of VRAM.
  4. You cannot have two different SLI or CrossFire configurations. For example, you can't have two GTX 960s and two GTX 980s in the same machine (see number 2).
Note

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Some OEM systems have restrictions on how many video cards work with their systems.

Note

SLI and CrossFire only work with GPUs that use a PCIe interface and are seated in a 16x or 8x PCIe expansion slot.

Before you install

Before installing a secondary video card, we recommend you review the below checklist first to help prevent possible issues in the future.

Windows 98 multiple monitor support requirements

For multiple monitor support to operate, you must meet the below requirements:

  1. You are running Direct X 5.0 or higher.
  2. You are using a PCI or AGP card listed below each card for each monitor.

Supported video cards:

*The Permedia video card cannot be used as the primary display adapter (the Permedia NT and Permedia-2 do not apply to this rule).

Windows 98 multiple monitor issues

The following tips help you resolve many common issues with a dual display setup in Windows 98.

Screen savers that only work on the primary monitor

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Screen savers that are not designed for multiple monitors only work on the primary monitor. For a screen saver to be active on both monitors, the screen saver must support multiple monitors.

Unable to drag a window from one screen to another

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This issue can occur by one of the below possibilities.

  1. The window is maximized, make sure that the window is sized appropriately to drag.
  2. Your monitor position is not set properly. Go into your display properties, and then verify that the secondary monitor is set to the appropriate position.

How to arrange multiple monitors

  1. Click Start, Settings, and double-click the Display icon.
  2. Click the Settings tab.
  3. Move the screen icons to the appropriate position based on preference, or how the monitors are set up on your computer desk.

MS-DOS program is not fullscreen

On the appropriate monitor with the MS-DOS window open, press Alt+Enter.

How to view the same desktop across multiple monitors

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  1. Click Start, Settings, and then double-click the Display icon.
  2. Click the Settings tab.
  3. Click the monitor that you want to use and select the Extend my Windows desktop onto this monitor option.

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Additional information

  • See our video card definition for further information.