Question Which Gpu is Suitable for Optiplex 755

[bigmonster645]

Hi Everyone,
I've Optiplex 755 Core 2 Quad Q6600
And this is my System Information.

Operating System: Windows 8.1 Pro with Media Center 64-bit (6.3, Build 9600) (9600.winblue_r8.150127-1500)
Language: English (Regional Setting: English)
System Manufacturer: Dell Inc.
System Model: OptiPlex 755
BIOS: Phoenix ROM BIOS PLUS Version 1.10 A11
Processor: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz (4 CPUs), ~2.4GHz
Memory: 4096MB RAM
Available OS Memory: 3956MB RAM
Page File: 1973MB used, 3070MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.03.9600.17415 64bit Unicode

 

[bigmonster645]

After looking at all of your answers i have come to an decision to save up some more money and then get a good CPU First then i will think of the GPU <3

 

[AntonyLovric]

After watching the video I do recall that the 9600GT was a single slot cooler. If you get a 750/950/1050 it would have to be a short model. (or even a GT 745)

 

[william p]

The best GPU for that is the ZOTAC Gtx 1050 Mini 2GB. It's 2 slots wide, but has a single bracket.
It's just about the only thing that fits as is

For the MT the D9729 cooler from the older 130W Pentium D will cool that.
The Q9650 or Q9550 are good 4 cores.
The E7500 2 core can be tape modded to 3.67GHz for faster single thread gaming.
https://a4.pbase.com/o6/45/326445/1/92337793.tD8VEvab.Tape_1333.jpg

 

[william p]

I've been away from this forum a while. But I will answer this old question just in case someone looks it up.
There were 2 Q6600. One was 105W the newer G0 stepping was 95W. It will have SLACR marked on it.
This is probably what you have.
With a piece of tape it will go 3.0GHz. Look up Q6600 BSEL tapemod.
That can handle 8GB DDR2 800. But it must be X64 low density type.
The 305W PSU has 2x 18A. 12V. rails. That's over 400W 12V. It just doesn't have the connectors to use it all.
The 375W PSU from a Dell T3400 has a 6 pin GPU cable. Same 2x 18A 12V.. rails. It fits.
The Zotac GTX1050 2GB Mini fits. So does the GTX1050TI 4GB mini. These are 2 slot wide cards with a 1 slot bracket.
They don't need the GPU cable so keep your 305/400W PSU.
Recent games require SSE4. The Q9650, Q9550, and E8600 have this. The 3.33GHz E8600 will often be the best choice.
The Tapemod also works on the E7500 to 3.67GHz but no SSE4.