Upgrade graphic card ?

Found these Dell™ OptiPlex™ 745 Tech Specs

https://www.dell.com/downloads/global/products/optix/en/opti_745techspecs.pdf



Dell OptiPlex 745 Desktop Product Details



Dell OptiPlex 745 Ultra Small Form Specs CNET



Dell OptiPlex 745 specs Engadget

Older Card readers do not read SDHC memory cards. If the card reader is built in then you probably cannot do anything about it, but you can buy a new USB Card reader to read the card.

Your computer uses a PCI-E X16 graphics adaptor so as long as there are enough connectors from the Power supply and it is rated high enough, it should work. If it will fit will depend on the form factor of your tower. You may need a half height card if you have a small form factor tower.

Do you have a Integrated Intel Graphics? If so you may be able to increase video ram,a little, in BIOS, Video?, but, You can find many different Graphics Cards, Nvidia, AMD/ATI, based. Your motherboard Support PCI and PCI e x16 (best) , Take a look at Expansion Bus, PCI EXPRESS: http://support.dell.com/support/edocs/systems/op745/en/UG_en/dt_spec.htm#wp1133451 Graphics Cards come with many options of ram. Your processor and memory will be a limitations. How much installed memory do you have? Take a look at these Graphics Cards: http://www.tigerdirect.com/applications/SearchTools/search.asp?keywords=pci%20e%2016%20graphics%20cards&sort=1&recs=10

Which specific model is the Optiplex 380 and what OS is installed on the computer? Does your computer have a graphics card installed or are you using the on-motherboard graphics?

Most of the Optiplex drivers are available here: http://www.dell.com/support/drivers/us/en/04/Product/optiplex-380 . Use the drop down menu to select your OS. Expand the section labeled video for the Dell drivers. If you are using the on-board graphics, use the Intel Graphics driver. Otherwise, you need the one for the manufacturer of your video card. Note: Dell has the drivers for the NVidia and AMD cards that were installed on some models. If you have upgraded or added a new card, get the drivers from the manufacturer.

I hope this helps.

Cindy Wells

What's the problem? What makes you think the graphics card is bad?

Try a different monitor on the computer. If the different monitor has the same problems as the original monitor, then you can bet the graphics card has a problem.

Need more information to assess the problem.

purchased a video card maybe the built in video card already have a problem, it think there is a available slot for the video card for you to put.

The Optiplex GX260 is limited in it's graphics card upgrading, due to,

1) The limited size inside the computer case, if the Optiplex GX260 is a Small Form Factor, (SFF), or Small Desktop computer.
The Small Mini-Tower may also be fairly limited because of size constraints.

SFF is,
3.57 inches Tall (9.0cm)
12.54 inches Wide (31.9cm)
13.93 inches Long (35.4cm)

Small Desktop,
4.2 inches Tall (10.6cm)
15.3 inches Wide (38.9cm)
17 inches Long (43.2cm)

Small Mini-Tower,
16.7 inches Tall (42.5 cm)
7.1 inches Wide (18.1cm)
17.6 inches Long (44.7cm)

2) Uses AGP graphics cards.
However will use either 4X or 8X AGP graphics cards.
(AGP 8X being the better technology)

3) Power Supply
It's a 200 Watt supply, probably with a 10 Amp, 12 Volt power rail.
With one of the more powerful AGP 8X graphics cards out there, you probably will be alright, but the age of the power supply is what concerns me.

With the added load of an AGP 8X graphics card, it could cause the power supply to fail. Perhaps not right away, but probably right in the middle of a killer game.

The motherboard chipset is an Intel 845G.

http://en.wikipedia.org/wiki/List_of_Intel_chipsets#Pentium_4_Chipsets

The motherboard chipset is the Northbridge, and Southbridge chipset.

http://en.wikipedia.org/wiki/File:Motherboard_diagram.svg

(CPU stands for Central Processing Unit, or Microprocessor, or Processor)

When dealing with Integrated Graphics such as is on your motherboard now, the Southbridge chip handles it.
(Chip, and Chipset are slang terms for I.C., or Integrated Circuit)

The Northbridge chip on the Optiplex GX260 is an Intel 845G. The Southbridge chip is an Intel ICH4.

Just about any AGP 8X graphics card, will S-M-O-K-E the integrated graphics you have now.

Also Integrated Graphics has to use some of the System Resources.
Some of the Processor, and Ram Memory resources.
With a dedicated graphics card, it has it's own Processor, and Ram Memory.
(GPU - Graphics Processing Unit, and graphics ram memory)

This frees up the System Resources for the computer, and allows better graphics.

The SFF, and Small Desktop GX260 will require using a half-height graphics card. Not as tall as a normal graphics card.

The Small Mini-Tower may also. The computer case size is measured at the Outside edges. This doesn't give you an accurate measurement, of Inside the computer case.

For this type of GX260, you will have to physically measure from the AGP graphics expansion slot, (The small black slot above the white PCI slots, and below the Processor socket), to the inside edge of the computer case.

Determine whether the graphics card has to be half-height, or full height.

In an added comment I will list three AGP 8X graphics cards examples.
One in a half-height configuration, two in a full height configuration.

Download a cpuz software from cpuz.com. It will give important details about the motherboard,memory and graphics card in your system.