Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Choosing the right psu

12 Dec 2011   #1

Windows 7 Home Premium 64bit
Choosing the right psu

How much w would i need for this system:
-i5 2400 3.1GHz
-Gigabyte GeForce GTX 560 1GB GDDR5
-Asrock Z68 Pro3
-WD Caviar Blue 500gb 7200rpm
-Sony Optiarc 24x dvd r/w
-Corsair Vengeance 8GB DDR3 1600MHz

My System SpecsSystem Spec
12 Dec 2011   #2

Windows 10 Home Premium 64bit sp1

Depends on your graphic card needs and periphials that need extra power to be run

ussualy 500 to 550 watt is good enough but if you want a little more headroom for future upgrades get atleast a 600 watt or greater
My System SpecsSystem Spec
12 Dec 2011   #3

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

Not much.

The system below, with your video card, uses under 300 watts under load and under 200 at idle. Your i5-2400 will use a bit less than the test system's i-7 920.

I'd get something in the 400 to 500 watt range unless you intend to get some other graphics card.

Processor: Intel Core i7 920(ES) @ 4.0Ghz (Turbo Mode Enabled)
Memory: Corsair 3x2GB Dominator DDR3 1600Mhz
Motherboard: Gigabyte EX58-UD5
Cooling: CoolIT Boreas mTEC + Scythe Fan Controller (Off for Power Consumption tests)
Disk Drive: Pioneer DVD Writer
Hard Drive: Western Digital Caviar Black 640GB
Power Supply: Corsair HX1000W
Monitor: Samsung 305T 30” widescreen LCD
OS: Windows 7 Ultimate N x64 SP1

NVIDIA GeForce GTX 560 1GB Review - Page 15

Attached Thumbnails
Choosing the right psu-untitled-1.jpg  
My System SpecsSystem Spec

12 Dec 2011   #4

Windows 7 Home Premium 64bit

Ok. Thanks!
My System SpecsSystem Spec
12 Dec 2011   #5

Windows 8.1 Pro RTM x64

According to, the minimum power requirements are 450W. Given that, I would recommend a psu of 650W.
My System SpecsSystem Spec
12 Dec 2011   #6

Windows 7 Home Premium 64bit

Ty, but i think 550 will be enough.
My System SpecsSystem Spec
12 Dec 2011   #7

Windows 10 Pro x64

Why don't you calculate with this PSU Calculator ?

eXtreme Power Supply Calculator
My System SpecsSystem Spec

 Choosing the right psu

Thread Tools

Similar help and support threads
Thread Forum
Help with choosing a CPU
Hi I am looking to uograde my processor but I'm looking at the motherboard specs and I am not sure as to what processors are compatible, I really only need 2Ghz so if somebody could look at a good priced one for that it would be really helpful. CPU specs (ASRock > Wolfdale1333-D667) CPU - LGA...
Hardware & Devices
Need help choosing a GPU
Hi... need help getting a Nvidia videocard, now if you can tell me whats the best cheapest GPU out there that can run any game till now at max and yes i do have a limited budget lets say around 400$ thanks.
Graphic Cards
Choosing RAM
I'm trying to decide which RAM or order, to go with a motherboard that I just ordered: Asus M4A89GTD PRO/USB3 Socket AM3/ AMD 890GX New Board - eBay (item 190510537291 end time Jun-07-11 12:46:06 PDT) I came across some Patriot RAM that is attractively priced: Patriot Viper II...
Hardware & Devices
New help in choosing which OS to buy.
Hi, I am having a bit of a conflict at the moment. The thing is, I have 4 Pc´s which I wanna upgrade. I am an yurop resident which I believe complicates things. And I need some advice in choosing the correct OSés. 1. HP Laptop which has Vista 32-bit home premium. I wanna upgrade to Windows 7...
General Discussion
Choosing PSU
I'm building a new system and just need to know if this Corsair VX550W will be enough or if I should get this Thermaltake 600W Litepower Components: ThermalTake Soprano DX Midi-Tower Case - Aluminium Front Panel (VE7000BWS) | Techbuy Australia Intel Core i7 860 Quad Core (2.80GHz - 3.46GHz...
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 15:33.
Twitter Facebook Google+