Tuniq Potency 550W PSU - Inside the PSU and Test Setup

Article Index
Tuniq Potency 550W PSU
Info, Features and Specs
Inside the PSU and Test Setup
Testing the 550W Tuniq PSU

Inside the Tuniq Potency 550W:

As I grounded myself and prepared to pull the cover off of this PSU, I discovered that there weren't any "Warranty Void if Removed" stickers on the case or covering the screws.  This is the first PSU I've pulled apart that didn't have such a sticker.  Even though there wasn't a sticker warning about electric shock, I still made a mental note not to discharge any large capacitors with my fingers.  Once the case was opened I got a good look at the backside of the fan and the main layout of the PSU.

PSU Opened

 

There are a couple of large choke coils inside this PSU and a nice fat capacitor to help smooth out ripple and noise.  The heatsinks are pretty lean however, but for a 550W PSU, there is really no point in overdoing it as PSU should remain cool with such a small load.  In reality,I was hoping for something a little beefier inside, but if the components are efficient they won't generate a lot of heat.  In fact, this PSU looks a little heftier that other larger rated PSUs we've looked at in the past.  Even though the heatsinks are little more that small blocks of aluminum the large fan should take care of things.

 Fan And Guard
Fan And Guard

 

Notice that a portion of the fan is covered by a clear shield.  This is to help funnel airflow to where it needs to be as well as protect areas of the PSU from coming into contact with the fan.


 Open PSU
Open PSU
Inside Action
Inside Action
   
 Regulators
Regulators
 More Regulators
More Regulators

 

While some companies slap gooey thermal paste between the MOSFETs and the heatsinks, Tuniq uses a cleaner, less messy solution - frag tape.  This seems to work well without the mess.

 

Test Setup & Info:

In the past, we've prided ourselves on real-world testing.  For graphics cards, CPUs and memory, what matters is what takes place in real applications and games.  We also held that philosophy for PSU testing, but after a while, we realized that there is more to a PSU that being able to run a machine stable over a few weeks or months.  In reality, if there is a lot of ripple, this can damage sensitive traces on your $700 graphics card or $1300 CPU.  A multi-meter alone is not good enough to check PSU voltage stability.  It's for this reason that we've updated our PSU testbed, and will continue to improve the detail and quality of our PSU reviews.  That being said, we will still be testing the PSU in a system and will be including stress tests from real components in the real world.

We recently purchased a Tektronics TDS2002 60MHz Dual Channel scope and it has already become invaluable around the shop here at BCCHardware headquarters.  I've used it to troubleshoot everything from PSU's to Radars, and we are using it today to check the stability of the Tuniq Potency 550W PSU on the next page.