Is 400W PSU enaugh for my new i5 750 system?

[Stinkynuts]

Hi, I have a Fortron Noisekiller FSP400-60PN PSU in my current system, do I need to replace it to run my new system.

Also, please comment my build:

From old comp: Power Supply: Fortron Noisekiller FSP400-60PN and 3 x 7200 rpm Hds and a cable turner.

Shopping list:
CPU - Intel Core i5 750
COOLER- Noctua U12P Se1366
MOBO - ASUS P7P55D P55
MEMORY - 2x2048MB Kit G.Skill RipJaws PC3-12800 1600MHz CL7
GPU - Sapphire Radeon Vapor-X HD 5750 512MB PCIe 2xDVI/HDMI/DP
OS HD -Kingston SSDNow V 40GB Boot Drive SNV125-S2BD/40GG

[lucienrau]

It should be fine. I've been looking at building almost the exactly same system (the MSI m-atx board & 2 hd as the only differences.) The 5750 pulls about 14W Idle 85W full load. from the SPCR Review of the I5 you're looking at about 108W max on the i5 so your system draw at peak load is going to be somewhere in the vicinity of 200W.

[petecool]

You will want to get the Noctua U12P SE2 instead, since you will need Socket 1156 support. IIRC the SE1366 doesn't have it.