Tuniq Potency 750W PSU - Inside the PSU and Test Setup

Article Index
Tuniq Potency 750W PSU
Info, Features and Specifications
Inside the PSU and Test Setup
Testing the 750W Tuniq PSU

Inside the Tuniq Potency 750W:

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 only the second PSU I've pulled apart that didn't have such a sticker - the first was the Tuniq Potency 550W.  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 main layout of the PSU.

 Tuniq Fan
Tuniq Fan
 PSU Open
PSU Open

 

The PSU specs state the Tuniq Potency is cooled by a 14cm fan, but according to my ruler and the fan model number, it's only a 13.5cm fan.  Although I guess you're supposed to round up to the closes whole number, right?  Regardless, the fan is large enough to keep the components cool.  The heatsinks are lean, well designed and seem to take advantage of the large fan.  They cover a good percentage of the choke coils and seem to make good contact with the voltage regulators.  The components inside look pretty hefty for a 750W watt unit and our hopes are beginning to feel well-grounded.

 Cooling and Capacitors
Cooling and Capacitors
PSU Inside Profile
PSU Inside Profile
Tuniq PSU Heatsinks
Tuniq PSU Heatsinks

 

You may have noticed above that the fan has a bit of a plastic shield over about 20% of the active cooling area.  This is to provide a bit of an airflow pattern inside the PSU and to protect some of the wires for getting too close to the impeller blades.

 

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 have purchased a Tektronix 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 750W PSU on the next page.