Video Card

ATI HD4670 DDR3, pretty much any manufacturer, but if you are in NA, XFX double lifetime warranty is nice.

Thanks! How about a nvidia card

why nvidia ?

with 70 USD for 4670 you will pay 100 USD for nvidia equivalent.

What is the native resolution of your monitor

"Thanks! How about a nvidia card"

GT 240

GT 240 is overpriced. For the same money you can get a 9800GT which is a good bit better.

4670 or GT 240/9800GT are really his only choices, or lower end models. This PSU does not have a 6pin power connector.

DDR5 but a 128-bit bus which puts the memory bandwidth only a hair faster than DDR3/256 bit. The HD5750 is better and uses slightly less power than the HD4770. It's probably the best card that would work with your PSU. For Nvidia the best you should look for is one of the newer low power 9800GTs that don't have a power connector(most you'll find for sale these days are this version.)

I have a HP 25" monitor with a 1920x1200 resulotion

I would like to up grade the supply also, however, HP only recommends a max of 450 W. I am not sure why. The 350 measures H=3.3" x W=5.8" x D=5.5". I would like to get at least a 550-650W. Is this possible?

4670 is better than gt240 ( the same performance of 4670 but over prived ) and better than 9800gt ( the difference in performance in small compared to difference in price as 4670 = 3870 especially with AA enabled ).

Fantastic! Thanks for the info.

If you're looking to upgrade power supplies it will give you more powerful video options. I would avoid the 5.25", its unnecessary if you just upgrade the hp to a better PSU with a 6 pin. You shouldn't need bigger than a 450 like below or similar, but there isn't really a reason to not go bigger other than some of the power is unused.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

if you can wait a little bit there will be gd 5670 soon ( at the performance of hd 4830 and dx 11 ) with no power connectors, dx11 and will be 85-90 USD price.

For that resolution you really want something at least on the level of an HD5770/4870 or GTX 260 so a new PSU is a good idea.

How do you start a 75W+ card without plugging in a 6-pin?

Seriously, STOP recommending 4770's to people with 300W PSU's.

With a converter of course. The HD4770 has a 6 pin connector but it barely uses it, if at all;

http://mark.zoomcities.com/images/gfx/GFXpowerchartby3d...
The HD5770 is a better recommendation however as it uses slightly less power and is a better card. Either should be fine for any nonterrible 350w PSU.

Shove that 4670......... better off with what you have.... the on board......... too bad your PS isn't better. The posters with the 4770'5750 are giving you better options. I'd go for the 5750 if you have extra molex plugs on the ps and the card comes with a molex to pci-e adapter. I don't think the machine will suffer much. 4770 will be a very good upgrade for you though.

The HD4670 would be worlds better than the onboard but, yeah, definitely not something to look at for 1920x1200.

Have you gotten this setup working? What video card.

I just installed an AMD/ATI HD5750 and an expansion ePowerTec EP-450CD power supply (goes in an open CD bay) into my HP p6130f.

When I boot, I get a blank screen (at boot time, not Windows), but the fan on graphics card is spinning... so it's getting some power.

After troubleshooting a bunch I called AMD support (which was pretty good and no wait once I found the number) and the guy said that it seems like the card isn't getting enough power.

Wattage wise, one 450w power supply should be able to power the card on startup (the graphics card is the only thing plugged into it), but he said the amperage might be an issue.

I don't know how to read this, but the specs at ePower say the 2 12V rails give 20 amps each, 38 together. The AMD tech said I should really have 25 amps.
http://epowertec.com/power_cd.html

Does this mean that if I only have one thing plugged in, it should be getting 38A? Could I use a Y-splitter cable to combine the 2 20A into a 38A? Do I need a different PSU? If the last, we can't recommend this 5.25 PSU for video cards that require > 20A.

More discussion on amp requirements for this card, ranging from 9.2A!!?! to 40A. Supposedly the ATI recommended PSU is 32A on the 12V rails.

Any input on this is appreciated. Thanks.