How many watts does my gaming system use?

[Egmidratus1]

Hi , I'm looking for some new parts for my PC and I'm not sure if my old PSU can handle all the pressure. Specs:
Intel i5 4440
MSI GTX 750 OC
8 GB RAM DDR3 (2 sticks)

 

[badboyrog2]

min 500W psu

 

[Damn_Rookie]

Presuming you don't have any other power hungry components you haven't mentioned, I'd be happy running that off a descent 400W PSU. Just keep in mind that your old PSU (you don't mention the wattage) will likely have deteriorated over time, and shouldn't be relied upon to output it's rated wattage now.

You could run it off a lot less that 400W (300W is the minimum nVidia recommends), but I personally like to keep a little more wiggle room.

 

[Dark Lord of Tech]

A GeForce GTX 750ti needs at least 20 amps on the 12v rail and a 350w to 400w Power supply.

This EVGA 430 watt is more than sufficient to power your specs and is Haswell compatible.


Here is one that will run your specs.

HASWELL Certified

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: EVGA 430W 80+ Certified ATX Power Supply ($26.13 @ Newegg)
Total: $26.13
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-06 15:22 EDT-0400)

 

[n3cw4rr10r]

I would say less than 300w. 430w psu would be more than enough.

 

[Egmidratus1]

Presuming you don't have any other power hungry components you haven't mentioned, I'd be happy running that off a descent 400W PSU. Just keep in mind that your old PSU (you don't mention the wattage) will likely have deteriorated over time, and shouldn't be relied upon to output it's rated wattage now.

You could run it off a lot less that 400W (300W is the minimum nVidia recommends), but I personally like to keep a little more wiggle room.

Sorry for not mentioning the wattage.It's a 450 watt power supply . I only have the video card right now and I'm planning to buy the other components soon. I've had this computer long before I knew anything about PC's and I'm not very good with PSU's anyway... it's a Delux ATX(at least that's what's written on it ).

 

[n3cw4rr10r]

The 450w psu should be plenty to run what you posted + couple of hdds and an optical drive.

Edit: Didnt see your model. It wont work.

 

[Dark Lord of Tech]

Get the power supply I linked above , you need one that's Haswell Compatible , your isn't.

 

[n3cw4rr10r]

Get the power supply I linked above , you need one that's Haswell Compatible , your isn't.

Holy crap that delux psu is old. Get what blackbird suggested.