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how to get 3 monitors on Dell Workstation

We have 2 workstations. One is dell T7500 and the other is dell 690.
They have one PCI express slot. Is there a way to support more than 2 monitors ?

any input would be appreciated.
4 Solutions
Frank McCourryV.P. Holland Computers, Inc.Commented:
If you have a PCI Slot you could get a PCI Graphics Card and install it along side of your PCIx card.  If it supports dual Monitors you can run up to 4 monitors that way.

If your tryiong to use onboard video with a PCIx Card, it may not work, depends on the machine...
Nick RhodeIT DirectorCommented:
As stated above using the onboard is iffy but can work so all you need is a video card.  They do have PCI graphic cards you could also use if you have the slots.  Otherwise if you want to pay more you can get some pretty beefy graphics cards that have like 4 inputs for 4 monitors.
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Gary CaseRetiredCommented:
Note that if you're using a DisplayPort output on an Eyefinity card to drive a DVI display you need to use an Active adapter ... many cards won't work with passive adapters.
Sebastian TalmonSystem Engineer Datacenter SolutionsCommented:
without free slots, you could also use USB graphic adapters to support 3 monitors
Scott CSenior Systems EnginerCommented:
Here are the USB adapters we use at work to give dual monitors:


The cool thing about these is that you can have 2, 3, 4 or more monitors.  You are only limited by how many USB ports you have.

The thing to remember with these is they work well for business applications...not so much for video and definitly not for gaming.
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