A Look Inside

Taking apart the QGD-1602P is easy. You only have to deal with four screws before removing the top cover.


As you can see, there is plenty of space to install PCIe expansion cards, as well as two 2.5" drives in their corresponding cage.


The drive cage uses a PCIe port to connect to the mainboard. It is nice to see a dedicated fan for the SSDs—a Y.S. Tech FD124015LB, to be more exact.


As per usual, I used ADATA SSD drives.


I installed two M510 SSDs into the M.2 slots.


Any heat built up internally is removed not by one or two, but four fans. These use magnetic bearings for the highest possible reliability. Sunon makes these, and their model number is MF0201VX-Q040-S99.


The PCB with the Ethernet port uses several heatsinks to handle the thermal load. On the same card is an ADUM141E0, a quad digital isolator.


A 16 GB SO-DIMM occupies one of two RAM slots. You would have to replace it to reach the maximum supported RAM total of 64 GB.


The mainboard's flash memory.


The CPU doesn't use active cooling since there is plenty of airflow if needed and the CPU's TDP is low.


The Super IO chip is an ITE IT8528E. This IC controls the cooling fans, among others. You will find more information on this IC, as well as an example use case, here.

Power Supply

It is time to take a good look at the power supply. Manufactured by FSP and 80 PLUS Gold rated, its model number is YPOB0500AF-2F00G10, and it has two outputs, +12 V with 10 A and +54.5 V with 7 A maximum current output. The PoE ports use the second output. This PSU is of extremely high quality, with an MTBF (mean time between failures) of 250,000 hours—most desktop PSUs are rated for 100,000 hours.


The transient/EMI filter is complete, with two CM chokes, a pair of X caps, and several Y caps. I also spotted two TVS (transient voltage suppressor) diodes.


An MOV protects against voltage surges, while an NTC thermistor/relay combo handles high inrush currents.



The APFC converter bulk caps are of incredibly high quality as well, with a lifetime of 5000 h (105 °C). Most high-end desktop PSUs use 2000 h (105 °C) bulk caps.


The controller board. On it, we find a FAN7688 Secondary Side PFM controller and a UCC21520 dual-channel gate driver.