A Closer Look

Silicon Power Zenith RGB modules are available in white and black. The sample we received is the white version, Having both variations for consumers to choose from allows Silicon Power to support different types of themed computer builds.


Silicon Power puts the XPOWER signature brand logo in the bottom center on the heatspreader. In the top right corner both sides has "DDR5 GAMING MEMORY" written.


On one side of each DIMM module is the identification sticker listing the SKU, rated XMP operating frequency. This are lacking critical information such as full XMP timings and the applied voltage. It is not necessary to have since the SKU is listed, which can be used to look up the details on Silicon Power website. This is just an inconvenience for those that handle a lot of memory on a daily basis.


Laying the DIMMs on the side, you can see the XPOWER logo in the center, along with "DDR5 RGB" written in the corner.


The Silicon Power XPOWER Zenith RGB DDR5-5600 kit weighs in at 44 grams on my scale. For Z-height, it is 39 mm rounding up with my calipers.


After taking the heatspreader off, we see that these are single-sided DIMMs with eight 2 GB ICs. This is as expected for a DDR5 32 GB kit since densities increased with DDR5. The thermal pad covers all the memory ICs. This particular kit does not have any coverage for the PMIC and surrounding components. On the back of the PCB is where the RGB LEDs are located.


A closer look at the ICs shows that these are SK Hynix (H5CG48MEBDX014). Currently, Micron, Samsung, and SK Hynix are the three suppliers of DDR5 ICs. When it comes to overclocking, the general consensus is that SK Hynix does provide the highest frequencies, scales better with higher voltage and has the ability to offer low primary timings that are equal, if not better than the rest. The newly released SK Hynix A-Die can go even further. The kit we have here today is using M-Die, which is the predecessor, but is still quite good in regards to overclocking. In fact the timings can go a bit lower versus A-Die, but the modules can't clock as high in frequency and require more overall voltage for similar timings and configuration.


With DDR5, one of the major changes is how the motherboard directly provides 5 V to the memory module's PMIC, which is then stepped down and split accordingly. No longer is the motherboard responsible for regulating the voltages, as with DDR4. The PMIC has the part number "0D=8KJ4N." Software reports this as Richtek being the manufacturer. Internet investigation provides no additional information.