Gtx 750ti with 180w PSU?

[magicammo]

So i gave my step dad my very first pc the alienware x51 the i3 model not sure what i3 it has in it but it also has a gtx 645 and a 180w psu. I was wondering if the 180w psu could handle a gtx 750ti. i want to upgrade the pc a bit for him 😀

 

[i7Baby]

See http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-750-ti/specifications - 300W minimum needed.

And you are supposed to have a 450W power supply for the GTX645 too - http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-645-oem/specifications

 

[Alex R]

It will work fine. Looking at power consumption charts, the GTX 645 uses around 60 watts under load, and the GTX 750 Ti uses around 62 watts under load

 

[i7Baby]

And the rest of the PC?

 

[magicammo]

@i7Baby these are the specs but if it only uses 2 more watts im sure it will be fine lol

CPU; Intel® Core™ i3-3220 Processor (3.30 GHz, 3MB Cache, with Hyper-Threading Technology)
OS; Windows 8 64 bit
RAM; 6GB2 Dual Channel at 1333MHz
Hard Drive; 1TB Serial ATA (7,200 rpm)
GPU; 1GB GDDR5 NVIDIA® GeForce® GTX 645

 

[i7Baby]

GTX 6745 - http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-645-oem/specifications
Thermal and Power Specs:
97 CMaximum GPU Temperature (in C)
130 WMaximum Graphics Card Power (W)
450 WMinimum System Power Requirement (W)

I'm not just making this up.

http://ark.intel.com/products/65693/Intel-Core-i3-3220-Processor-3M-Cache-3_30-GHz
TDP 55 W

plus RAM - 10W plus HDD - 10W

plus case fans, cpu fan, usb devices, capacitor aging, etc etc

 

[magicammo]

the system only has one really small case fanthis is the Alienware X 51 and I've heard success stories of people using the GTX 750 Ti with the 180 watt PSU