Should I upgrade PSU for this GPU?

[Edward_Leemimg]

Hi,

I'm about to buy a new graphics card, which requires a minimum of a 450w PSU. The GPU i'm getting is an XFX Radeon 7750. I only have a 350w PSU, and I tried measuring my case to make sure the new PSU fitted, but I think it is too big for my case. I've read a lot of people saying this card is very low on power consumption and it works fine with <300w power supply's. I'd just like to know if it would be okay to use this graphics card on my 350w medion branded psu (the computers company)?

Thanks!

 

[david cassar]

The hd 7750 uses very little power and can easily run on a 350w unless you have a fx 8150 @4 ghz as your cpu.

 

[Edward_Leemimg]

The hd 7750 uses very little power and can easily run on a 350w unless you have a fx 8150 @4 ghz as your cpu.

Thanks, and the CPU I use is the i3 2120 @ 3.3ghz, so it should be okay! 😀

 

[c_for]

Not all power supplies are equal. The important decider will be your +12V rail in the PSU. How many watts is the maximum value on your +12V rail? You can tell by finding a sticker that looks like this on your PSU:
http://www.guru3d.com/miraserver/images/2010/cm-silent-gold/IMG_1484.jpg

 

[david cassar]

The hd 7750 uses very little power and can easily run on a 350w unless you have a fx 8150 @4 ghz as your cpu.

Thanks, and the CPU I use is the i3 2120 @ 3.3ghz, so it should be okay! 😀

You can easily run the card then.

 

[Edward_Leemimg]

Not all power supplies are equal. The important decider will be your +12V rail in the PSU. How many watts is the maximum value on your +12V rail? You can tell by finding a sticker that looks like this on your PSU:
http://www.guru3d.com/miraserver/images/2010/cm-silent-gold/IMG_1484.jpg

I'm not sure if this is correct, but I saw something that said 300w. Does that sound about right?