I believe what you need is a AGP 4x low profile graphics card. What are you trying to do with this system. It was designed to be a business small form factor so that limits a lot of upgrades. How much are you willing to spend on the new graphics card? What do you  ultimately want to do with it?

pretty much want to make it a gaming computer, but nothing too high graphics, basiclly something i can run acouple year old games with on low settings, I dont mind low graphics i really want something that will get me into minecraft, counterstrike etc etc at low-medium resolutions I dont mind spending anywhere from 50-100 for anything around a 256-512 mb dedicated graphics card

The GX260 has proprietary Power Supply Mounting.  You could Buy a new power supply and hack a hole in the Tower case and get a Geforce 5500/6200 card.  However your money would be better spent upgrading to a PCI-E based dell like a GX280/Dimension 8400 or better.  The PC2100 Ram in the GX260 is really slow compared to DDR2 or DDR3 of newer Dells.   I have friends that want a Game Machine and they don't have a lot.  I usually steer them to get an Optiplex 745 or better 755 tower which is off lease used and costs Less than $300.  I then recommend good Low end cards like the 9800GTEE or Radeon HD6670 which does not need a new power supply and can be had in the $100 range.

These Older but good Dells can Run XP, Vista, or Windows 7 once upgraded with a modern Video card and are very reliable.

Micro Center - Dell Optiplex 755 Desktop Computer Refurbished ...

XFX HD667XZHF3 AMD Radeon HD 6670 1024MB DDR3 PCIe 2.0 x16 Video Card
SKU: 507871

For the Skydive Tower Geforce AGP is still around its just harder to find.

		EVGA 512-A8-N403-LR e-GeForce 6200 512MB DDR2 AGP Video Card SKU: 030817
		EVGA 512-A8-N405-KR GeForce 6200 512MB DDR2 AGP 8x Video Card SKU: 552398
		Sparkle SA6200256D2HPP NVIDIA GeForce 6200 256MB GDDR2 AGP Video Card SKU: 150813
		Sparkle GeForce FX 5200 128MB DDR AGP Video Card SKU: 056390

arent graphic cards dedicated ram anyways ? hence the 256 or 514 mb or am i misleading that ?

Intel Graphics Steals System Ram. Turbo Cache and Hypermemory steals System Ram.  For AGP the ram is on the card.

Will the cards you listed above (this post) work in the Gx260? I was confused with your reply  because you mentioned getting a different model dell.

The first card will not.

The AGP cards will work.  They won't be speed demons.

In general a newer Dell With PCI-E card instead of AGP card will be MUCH FASTER.

For Most Modern Games any AGP will be TOO SLOW.

Core2 Duo and QuadCore systems will be more than 5 x faster and with a Radeon 6670 will run most modern games.

Those Items will not work on a GX260 but they will on an GX755.

Hello,

I have Dell OptiPlex GX260SFF model C20. Can I put in procesor Intel PENTIUM 4 2.80 GHz SL6PF? And Can I put in 2gb ram memory with 400MHz or I must put in 266MHz memory?

Thank you for answers.

Jan 

PC3200 aka DDR 400 ram will work fine in the 260 IF it is LOW Density Non Buffered Non Registered Ram.

The ram does not have to be PC2100.  PC2700 aka DDR 333 or PC3200 DDR 400 will work fine.

You cannot however usually mix any vendor you want with different speeds.

Try to find a matched set of ram that is "INTEL compatable" DDR

Hello,

I found this memory  "1GB PC3200 DESKTOP RAM PC memory 184p 400 mhz module NON-ECC LOW DENSITY". Will it fix on dell optiplex gx260sff model c20?

Thank for answers.

Jan

If its low profile it should. If not it will fit but the cover will not close.