Will I need to connect the serial card to my PSU? - StarTech.com IT Pro Community
<main> <article class="userContent"> <h2 data-id="optional">Optional</h2><p>Tagged serial cards derive power from the PCI or PCI Express slot on the motherboard. When you power serial devices from the serial card ports, the power provided by the slot may not be enough to power all of the devices and you should connect additional sources of power from the power supply. When you troubleshoot issues, you should connect an additional source of power.</p><ul><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fmpex2s952" rel="nofollow noreferrer ugc">MPEX2S952</a></li><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex1s1p952" rel="nofollow noreferrer ugc">PEX1S1P952</a></li><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex1s553" rel="nofollow noreferrer ugc">PEX1S553</a></li><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex1s553lp" rel="nofollow noreferrer ugc">PEX1S553LP</a></li><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex1s952" rel="nofollow noreferrer ugc">PEX1S952</a></li><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex1s952lp" rel="nofollow noreferrer ugc">PEX1S952LP</a></li><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex2s553" rel="nofollow noreferrer ugc">PEX2S553</a></li><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex2s5531p" rel="nofollow noreferrer ugc">PEX2S5531P</a></li></ul><p>Some signs that you are experiencing power-related issues include certain devices not working correctly, not all of the devices working at the same time, and certain devices not working at all.</p><h2 data-id="required-for-12v-or-5v-power-modes">Required for 12V or 5V power modes</h2><p>It is not required to use the power connector on the card, but certain modes will only be available while using the connector. For instance, jumpers can be placed on the card to draw 12V or 5V from the power connector to assist with power output through the DB connectors. If these modes are activated without the power connector, the card will not function correctly.</p><ul><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex16s550lp" rel="nofollow noreferrer ugc">PEX16S550LP</a></li><li><a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpex16s952lp" rel="nofollow noreferrer ugc">PEX16S952LP</a></li></ul> </article> </main>
