Closer Look and Performance
The interior of the PX1300P looks as good as the previously reviewed DeepCool PSU. It confirms that DeepCool keeps the top quality regardless of the series. The build quality is top-notch, and everything is clean. All the visible soldering spots also look exceptional, and the whole design suggests no problems with overheating any component.
I can’t find it specified, but the PSU is supposed to work with passive cooling up to at least 30% load, so close to 400W. This means the PSU will stay silent most of the time, as even less demanding games won’t push the CPU and graphics card above that.
All the visible capacitors are rated at 100°C or more. All electrolytic capacitors are Japanese, as we can see from the main features. Two main capacitors are made by Rubycon and are rated at 420V, 680uF, and 105°C. The design is a bit improved compared to the PX1000G, but we expect this when we pay for a Platinum and higher wattage series.
There are few heatsinks, and their surface is enough to keep everything cool and quiet. The fan keeps the optimal temperature under load, even though it runs in a semi-passive mode.
The PX1000P 1300W uses a fluid dynamic bearing Hong Hua HA1225H12SF-Z fan, rated at 12V 0.58A and up to 2200RPM. The automatic adjustment limits it much lower as we can barely hear it, even at the highest test rig load. During the tests, the fan was quiet, and the generated noise suggests it was spinning below 1000RPM during the highest load of our test PC. A little surprise is a standard 4-pin connector, so if anything happens, we can replace the fan with a new one. Of course, when the PSU is under warranty, I don’t recommend removing warranty stickers.
Performance
Tests were performed on the Intel platform, containing the overclocked i9-14900K CPU, ASUS Z790 APEX motherboard, overclocked Colorful RTX4080 Advanced OC graphics card, and additional components to bump the wattage. The peak wattage is around 900W.
All results were obtained in the DeepCool Morpheus case, which had good airflow.
There were no stability issues during all tests. The PX1300P’s efficiency is excellent, and all the values are within the ATX specification range. The +12V voltage was nearly perfect under load. Everything else was also close to the reference values.
As expected, the PSU was silent during idle and mixed load tests. Under full load, we could barely hear the fan. This experience is better than on most competitive PSUs, but I won’t hide that most of the competition also improved their PSU series in the last few years.
Even though the PSU is relatively small, there is no problem with the heat.
The mixed load test will be the closest to the daily usage, which is about what we can expect during less demanding gaming or some more demanding office tasks. During this work, the PSU is just perfect. It’s silent and delivers stable voltages.
The PSU is designed to work with two of the latest Nvidia graphics cards. I assume we won’t ever see that in gaming computers, as new cards don’t support multi-GPU configurations like SLI. However, we can still use such high-wattage power supplies in workstations, as various calculations and projects support graphics cards. I won’t suggest Bitcoin mining, which isn’t popular anymore, but there are new ways of utilizing multiple graphics cards or processors, like various AI projects.
