Can a FSP Saga II 400 Watt power a Zotac GTX 660?

[dhruv990]

Hi I checked out a review of the Zotac GTX 660 where it consumed only 202 watts maximum.
Also I checked out eXtremeVisions PSU calculator and it reccomended a 375 Watt PSU for the following config:
i7 4770k
GTX 660
Regular ATX Mobo
4 Sticks DDR3 Ram
2 HDD
1 DVD +/- RW
1 PCI card
1 PCI-e x1 Card
1 120MM LED Fan
1 80MM Fan

I have no intention of overclocking any part.

I also read on a separate forum that one individual was able to run his 660 GTX with an i5 2400 processor using the same PSU with ease. How much more wattage does the i7 4770k require?

The FSP saga does have a dual 12v rail setup (each rail has 17A on it, so combined amperage of the 12v rails is 34A, total power output on the two is about 336 Watts). It also has an 80% efficiency and according to tests 50% load gives about 79 % efficiency.

Given these facts what are the chanced that the FSP will die out burning the entire system to shreds, like an older (generic, cheap, chinese make) 300 Watt psu did when I plugged in a 9500gt into the system (with a pentium D processor).

So how do you think

 

[dhruv990]

anyone any help?

 

[Ubrales]

The i7 4770K (great CPU) has a TDP of 84 watts. http://ark.intel.com/products/75123 - However, if overclocked (you stated that you have no intention of doing this) the power draw can rise dramatically to 200 watts depending on the overclock and the location of the die on the silicon wafer. This is why some CPUs will overclock better than other CPUs of the exact same specifications.

Next coming to the GTX 660. The card requires a minimum of 450 watts of system power - http://www.evga.com/Products/Product.aspx?pn=03G-P4-2667-KR

The power for the card alone is 140 watts without any overclocking. The PSU must be of a good quality, 450 watts minimum with at least 24 Amps on the 12 Volt rail.

Good quality PSUs are Corsair, Seasonic, XFX, Antec, to name a few.