power supply confusion

[dust off]

which power supply is suitable for my dell precision t3400 processor:core2duo 2.8ghz ram:6gb motherboard tp412.i intend to buy a nvidia gtx 670 for gaming.please advice. thank you.

 

[Dashing_star]

our graphic card itself use 500 watt power.. your should go for 550 or 650 watt PSU...
That fits for your pc..
http://www.amazon.com/Corsair-Enthusiast-Certified-Comp...
http://www.tweaktown.com/reviews/6003/corsair-cs650m-65...
(i already post it in another question by you)
Regards

 

[dust off]

thanks dashing_star.but will a 375w psu work which is still in my computer?

 

[Dashing_star]

Hi dust off,
still the graphic card uses 500w it cause the computer stuck and your graphic card will not work at 375w because of lagging power...

 

[dust off]

but obviously manufacturers put up high power requirements gpu does not really go that high.i looked at an asus psu 450w is that solution to my problem.

 

[Vic 40]

Don't see the point in buying an oem psu,these are mostly not made for gpu's like you want to buy.Get a decent 520/550watt psu with two pcie connectors (a good 450watt might work as well) and look at tier 1+2 for reference here,
http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html#15349669
if not available is tier 3 also an option.

 

[Dashing_star]

450watt is good though..
http://gpuboss.com/graphics-card/GeForce-GTX-670
Regards

 

[dust off]

which brand all i have been able to get from internet is corsair.any suggestion about sli?have that in mind.and overclocking guide.thanks.

 

[Vic 40]

Before worrying about sli maybe first upgrade the motherboard and cpu.A better investment.

A 750watt psu should do fine with sli,a good 650watt probably too without overclocking,but it would need to have 4 pcie connectors.

Corsiar can have decent psu's,which ones are you talking about? Maybe link the psu list from your shop here?