Here's a couple of noob questions for you all, but I've tried searching for the answers.
I'm totally new to truly small SFF cases and I don't understand the way the PSUs that are recommended for the S4 mini work. So far I understand that:
-For those uncomfortable working with open-case PSUs, the max internal PSU wattage is about 160.
-A simple external brick psu solution is a dell brick + an HD plex PSU.
What I don't understand:
-How do you connect the dell brick to the HD plex 400 watt internal PSU?
-Why do some PSUs need the brick? What are the differences between these PSUs and those that do not require the brick?
Sorry if this is not the right place to ask these questions. Thanks for your help.
Hello, napptr.
1st grade level TL;DR:
The key is to look and see if the power supply is labeled DC-DC or AC-DC. You need both.
------------Step 1: AC-DC----------------
AC power is what comes out of your wall. Computer electronics run (and batteries) run off DC power.
You need to convert the AC that comes out of your wall to DC before your computer can use it.
This is accomplished with a AC-DC power supply.
------------Step 2: DC-DC------------------
Once you have DC power you need to get it to your PC components. Computers have lots of different plugs and voltages. You need a DC-DC power supply to handle the task of getting every part their correct voltage and power.
-----------Step 3: Why you are confused--------------
Think of a standard ATX power supply that you are used to as
two power supplies in one. It is a AC-DC "converter", and a DC-DC "distributor". You plug in your giant ATX power supply into the wall, it converts the voltage to DC, and then it separates the the DC voltages into 12v, -12v, 3.3, and 5v and distributes it to each part in your PC.
-----------Step 4: Divide and Conquer-------------------
The MINI seeks to save space by
chopping an ATX power supply in half. Outside of the case you have your AC-DC power supply or "power brick" and inside the case you have your DC-DC power supply (Dynamo Mini 200 DC-DC, HDPLEX 400 DC-DC, Pico 160 XT DC-DC, G-Unique DC-DC).
The theory here is that this saves space with the current PSU technology we have.
-----------Step 5: The exception to the rule--------------
The S4 MINI phenomenon has spurred progression in the development of compact AC-DC power supplies. Think of these as small power bricks that you can fit inside the case. Examples are the HDPLEX 160 AC-DC, and HDPLEX 300 AC-DC. You still need a DC-DC power supply so you can power your individual parts.
-------------Step 6: These aren't really steps anymore are they?--------------
You can post in
@Kmpkt subforum as he makes power supplies for the MINI. I'll let him explain them.
On my website is a page dedicated to build sheets. These inventory
every part needed for a MINI build. Noone ever visits this page on my website, according to statistics, but I think it is helpful:
http://nfc-systems.com/boms
I have too many videos on this subject to count, and so does my friend Jay at
@Tek Everything so check out the videos if you are still confused.