what gpu can i buy for my old dell optiplex 755? how can i know if it will fit my case and have enough power? i want a gpu that is cheap(old?
- geek-in-trainingLv 75 months agoFavorite Answer
First you need to know which Dell Optiplex 755 you have. They made 4 different case sizes: Mini Tower Computer (MT), Desktop Computer (DT) , Small Form Factor Computer (SFF), or Ultra Small Form Factor Computer (USFF) .
Once you figure that out, you can proceed to determine whether a full size or half-height GPU will fit.
The power supply varied from 220w to 305w, so a low end GPU will be needed unless you replace the PSU.
Check out the pdf file below for further information.
- Spock (rhp)Lv 75 months ago
for get it. just save up and get a new computer. your cpu hasn't enough power for a new gpu
- Pearl LLv 75 months ago
you could try amazon, they sell everything
- 5 months ago
The hardware could be too old now to upgrade
with many retail desktops (HP, Dell, Lenovo computers) the hardware is designed specifically for their models
It's difficult to replace the power supply and other hardware.
Would likely be better to buy a preowned desktop with newer hardware.
If you take the computer to a local computer repair business they could recommend on hardware to buy.