What is Power Over Ethernet (poe)

If you have ever wondered about Power Over Ethernet (PoE), here is a quick technical explanation. If you want to calculate the PoE system, get this app.

Intel ATX 3.0 PC Power Supply Specification

19 years after publishing ATX2 power supply standard (a.k.a ATX12V2), Intel has released new ATX 3.0 Multi Rail Desktop Platform Power Supply specification. The main innovation in ATX 3.0 is new auxiliary 12VHPWR connector intended for next generation hardware, such as PCIe 5.0 desktop graphics cards. This connector can provide up to 600W on 12V bus directly to a graphic card. In addition, auxiliary "sideband" pins can communicate to the card the available power of PSU, and can also provide some communication back from the card to the PSU. 

For the details of the new spec, pinout of 12VHPWR connector and designation of the sideband control signals, see our review of ATX 3.0 Connectors and Pinout.

12VHPWR connector

Engineering Salaries 2020

 If you wonder if your compensation is competitive, Electronic Design magazine has published its annual 2020 Engineering Salaries report. 

Median compensation for engineers in 2020 was in the range between $100,000 and $125,000 (21%). 

37% was making $125,000 and over. 

2% was making less than $30,000 (I can't imagine an engineer would accept such a position).

36% did not get any raise in 2020, and 26% got just 1-3% raise. At the same time 22% actually got some paycut, likely because of business decline due to covid-19.

Hopefully, next year will better, especially because he vaccine is already in the pipeline.