OptiPlex 745 Mini-Tower - GFX card options?

Hi all

I own an optiplex 745 Mini-Tower and I want to install a graphics card. I read the manual and it says that its PCI Express slot is 16 x but I could not find anywhere a response on whether it is compatible PCI-E 2.0 or 3.0. This makes the choice of a quite difficult graphics card. I read somewhere that if I install a 3.0 card gfx, it would be "backward compatible" feel, he would work on a 2.0 interface (isn't that backward compatibility option depends on the entirely gfx card?) Some cards him and others not so I'm not mistaken).

So, this is the case with this model, or it is indeed a 3.0 interface?

Could I install a 3.0 card gfx or 2.0?

Thank you.

jdj9

PCI-E 1.0 or 2.0 are very good.  PCI-E 2.1 or 3.0 may or may not be backward compatible. Some R4 R5 R9 of R7 of Sapphire cards do seem to work in older systems like the precision, etc. 490.  I used an ASUS GDDR5 PCI-E 3.0 GT740 and it worked fine in my 745.

The problem is that the profile for the 16 x power plug changes with version 2.1 and 3.0.  In addition, Sapphire will show they don't support UEFI BIOS systems with their R series cards.

It is also why the older variety of version 1.0 or 2.0 cards often are not seen at all on the bus 3.0 on new computers.

The Asus EAH6450 works very well in all models of Dell, in that I have tried.

Not compatible with USFF or Micro because they have no slots.

The only new parameter is the secure boot must be extinguished and CSM on for some cards to post.

ASUS EAH 6450 SILENT card fits all models of Dell who have a Slot PCI - E, meaning that it does not work with USFF due to no expansion slot. The 6450 a 2 X the number of shaders as the 5450 doesn't.

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(Cooler) higher performance can be had from ASUS GT740

GT740-2GD3-CSM 2 GB

http://www.Newegg.com/product/product.aspx?item=N82E16814121877

http://www.Newegg.com/product/product.aspx?item=N82E16814121439

Tags: Dell Desktop

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