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Optiplex 990 Multi-Display settings in BIOS

Hello,

does anybody know what the bios setting "Video" -> "Multi-Display" -> "Enable Multi-Display" effect? It just says "This option enables or disables Multi-Display. It should be enabled for Windows 7 32/64-bit only. This feature is not applicable to other operating systems."

By default its disabled.

I am using a HD 6450, not the onboard video.

 

Thank you

Daniel

Solution (1)

Accepted Solutions
2 Bronze

I had this same question and here is the answer from a Dell support chat:

... this model does something different from our other systems in regards to onboard video and video cards.If you have that setting enabled, and a video card installed, and you're running Windows 7 with both drivers installed, you can use both the onboard video and the additional card

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Replies (15)
2 Bronze

I had this same question and here is the answer from a Dell support chat:

... this model does something different from our other systems in regards to onboard video and video cards.If you have that setting enabled, and a video card installed, and you're running Windows 7 with both drivers installed, you can use both the onboard video and the additional card

View solution in original post

Community Accepted Solution
2 Bronze

When  combining a dual monitor card with the integrated video port offer the ability to run a three-monitor set up? I have tried to install two video cards to set up a three monitor set up and it failed.

2 Bronze

All this means is that you can use the displayport and vga at the same time for 2 different monitors.  I have a ATI 6670 and it completely disables the onboard intel video.

2 Bronze

We are trying to run 3 monitors from an Optiplex 990.   Did this solution work?   I've tried installing 2 cards for the ability to run 3 monitors with no luck.  I can run 2 monitors from a single card plugged into the primary PCI express slot, but every time I plug in the second card into the PCI express slot #2 all three monitors go blank.

If I can use the on board video along with a single card, we can live with it.  What are the required settings?

I've also thought of purchasing a triple monitor capable card for my next step if the onboard and single card setup does not work.

Any help will be greatly appreciated.

8 Krypton

Cant use onboard with x16 video  get an ATi card with eyefinity and some mini display port adapters.

While Eyefinity is a fantastic tool, it does have a couple major drawbacks in a budget-oriented environment. The most significant restriction is mandatory DisplayPort use. In a triple-display setup, at least one monitor must use the card's DisplayPort output. If one of the displays doesn't have a DisplayPort input, the user must purchase an active DisplayPort to HDMI/DVI/VGA converter in order for it to work. The active part is key because it means a low-cost passive converter won't work. Unfortunately, most active DisplayPort-to-HDMI/DVI converters seem to be in the $100 range.

http://support.amd.com/us/eyefinity/Pages/eyefinity-dongles.aspx

 


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2 Bronze

Maybe you have the same problem I had.  I have the Two DUAL HD 6350 cards and found there is a setting called CrossFire that is on by default.  When I turned it off I was able to connect monitors to both cards.

2 Bronze

Where is the switch setting?

2 Bronze

It is in the Catalyst Control Center.  There may be other ways to get there, but here is how I found it.

 

1. From the Catalyst Control Center Start Screen choose Performance - AMD CrossFire.

2. Un-check "Enable CrossFire."

8 Krypton

A different approach would be.

J 5 Create JUA 230 DVI Display Adapter | Staples®

www.staples.com/J-5-Create-JUA-230-DVI.../product_400434

Operating System

    • - Windows XP / Vista / Win7 (32 bit or 64 bit)
    • - Mac v10.6 / v10.7

Minimum System Requirements

Available USB 2.0 port
1~2 Displays CPU: Intel/AMD Dual Core 1.8GHz processor,
RAM: 2GB memory or higher
3~4 Displays

  CPU: Intel/AMD Quad Core 2.4GHz processor,
RAM: 4 GB memory or higher

Product >> USB Display Adapter >> JUA230

JUA230 DVI DISPLAY ADAPTER

   - Resolution up to 1920×1200

   - Multiple- Displays using up to 4 adapters

   * Functions

   * • Supports display resolution:1920 x 1200 @ 32bit

   * • Plug-and-Play USB connectivity

   * • Allows for up to 4 adapters in Windows

   * • Allows for up to 2 adapters in Mac

   * • Supports Display Modes: Primary, Extended, Mirror

   * • Display Rotation: 0°, 90°, 180°, 270°

   * • Aluminum enclosure that is non-toxic and recyclable

   * • Easy driver install

   * • Friendly software:

         o - Identify Monitors

         o - Multi-Display Control Panel

         o - Shortcut to access Windows

         o - Display settings dialog box

 


Report Unresolved Customer Service Issues
here

I do not work for Dell. I too am a user.

The forum is primarily user to user, with Dell employees moderating
Contact USA Technical Support


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Diagnostics & Tools

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