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Cheapest, best way to use Windows 10 activated

  1. Choose a version. I suggest Windows 10 Home edition for gaming and general usage.

  2. Purchase the cheapest, product key here, or on the Mircosoft webstore.

  3. Download Installation Media Tool For Windows 10here

  4. Follow steps beneath that Web page.

  5. When it asks "Enter product key", enter the key received from the package bought earlier.

Sharing permalink to build

In most cases, the 80+ Efficiency ratings are largely useless.
Firstly, the ratings aren't always equivalent to the PSU's efficiency you buy. A lot of brands 'cherry pick' their PSUs when sending ECOS (the ones who provide the 80+ ratings) resulting in a rating better than what you'd actually get.
Secondly, the efficiency tells you nothing about the quality of the PSU or electrical performance. All it tells you is the amount of power given to your components divided by the power draw from the wall. No PSU is 100% efficient. Some energy will be wasted as heat (mainly) in the conversion of DC to AC. There have been many cases of 'Bronze' PSUs performing better and better quality than 'Gold' PSU's.
Finally, in most cases, efficiency of PSUs won't save you alot of money. For example, we compare the Corsair CX550M "Bronze" PSU to the EVGA G3 550 "Gold" PSU. Let's say the components of the PC are moderately high tier for gaming (GTX 1070, i7 6700k) which actually uses ~215w at a gaming load. Say the user games 3 hours a day, six days a week for every week of the year and their electricity prices are US14c KWh. In 1 year they would save an outstanding 90 cents by using the EVGA G3 550w PSU as opposed to the Corsair CX550M... There you go. Because we know the "80+ ratings" are vague in their accuracy, the lack of relevance it has to a PSU's quality (which is very important when choosing a PSU), and the real-world effectiveness of a more efficient PSU shows these ratings can be basically ignored in most cases.

Identifying counterfeit Windows:

Why not unactivated:

(5.) You are authorized to use this software only if you are properly licensed and the software has been properly activated with a genuine product key or by other authorized method.

You may not bypass or circumvent activation

The general rule to remember is that if the price looks too good to be true, it probably is.

Recent part: 20/5/2018 20/10/2018

First Part:

Template for PSU components, credit to Aris Mpitziopoulos

General Data
Manufacturer (OEM)
Platform Model
Topology Primary
Topology Secondary
Primary Side
Transient Filter
Inrush Protection
Bridge Rectifiers
APFC Boost Diode
Hold-Up Caps
Main Switchers
Controllers *
Secondary Side
5V & 3.3V
Filtering Capacitors
Supervisor IC
Fan Model
5VSB Circuit
Standby PWM Controller

* Resonant or PWM controller. APFC + PWM can be combined or separate.

What to look for in each section:
Italics mean one or the other, not both.

  • Primary Topology
Double Forward Half-Bridge Full-Bridge Active Clamp LLC Resonant
  • Secondary Topology
Passive Rectification Synchronous Rectification DC-DC Converters
  • Transient Filter
X-Cap Y-Cap CM Choke DM Choke Discharge IC MOV TVS Diode Fuse
  • Inrush Protection
NTC Thermistor Bypass Relay Diode
  • Supervisor IC
Name +12V Channels 3.3V OCP 5V OCP PG OVP 3.3 OVP 5 OVP 12 UVP 3.3 UVP 5 UVP 12 SCP OPP OTP Pins
HY510N 0 No No Yes 3.9 6.1 13.4 2.2 3.5 NA Yes No No 8
WT7502 0 Yes Yes Yes 3.9 6.1 13.4 2.69 4.3 9.3 Yes No No 8
PS232S 4 Yes Yes Yes 3.9 6.1 13.8 2.2 3.5 9.0 Yes No No 20
General Data
Model S12ii 520
Manufacturer (OEM) Seasonic
Platform Model GB Bronze
Topology Primary Double Forward
Topology Secondary Passive Rectification & Group Regulated
Primary Side
Transient Filter 6 Y-caps, 2 X-caps, 3 CM Chokes, 1 MOV, 1 Fuse
Inrush Protection NTC Thermistor & Diode
Bridge Rectifiers 1 x GBU8J with heatsink 600V, ~3.6A @ 100°C
APFC MOSFETs 2 x Infineon 5R250P 550V, 9A @ 100°C, 0.25?
APFC Boost Diode 1 x STTH8S06D 600V, 8A @ 25°C)
Hold-Up Caps 1 x Nippon Chemi-Con 400V, 470uF, 2000h @ 105°C, KMQ
Main Switchers 2 x Infineon 5R250P 550V, 9A @ 100°C, 0.25?
APFC + PWM Controller Infineon ICE1CS02
Secondary Side
12V MOSFETs 2x SBR30A50CT (unsure) 50v, 30A at ~110°C
5V & 3.3V PFR30L50CT & STPS30L30CT (unsure) 50V, 30A @ ~110°C & 30V, 30A @140°C
Filtering Capacitors Electrolytics: Nippon Chemi-Con
Supervisor IC HY-510N
Fan Model HA1225M12F-Z
5VSB Circuit
Standby PWM Controller 1 x FSQ0165R
Rectifier 1 x SBR10U45