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I'm trying to install a USB-C device with little success.
Output device requires:
- ≤ 8 W
- 4.75-5.25V, 1.5A
The card is supposed to conform to USB-C spec. The device powers on, but continually restarts. The manual for the device states this happens when there is not enough power.
I'm looking at this PCB and I just don't understand how the "5V" connector gets to the outputs. Possibilities:
- The board's design is incomplete
- The board is defective - the SATA power interface does not feel very solid when inserting the plug
- The SATA cable is defective - unlikely, I tried 2 cables both of which are powering my hard drives with no issue
- The USB-C cable is defective - also unlikely, it carried enough power when plugged into the wall adapter
buildingsramen
Posted 2018-02-01T03:35:59.753
Reputation: 11
How many watts is your power supply? When you say device restarts are you talking about the pci-e card or the device plugged into the USB-C port? What are you plugging into the USB-C port and how many watts does it need? Also I don't know the make and model of the pci-e device so I can't look it up anywhere. – cybernard – 2018-02-01T03:43:24.023
750 W. I'm talking about the device plugged into the port. – buildingsramen – 2018-02-01T03:46:03.507
An external display. It requires <= 8 W according to the manufacturer. https://www.bestbuy.ca/en-ca/product/axgear-usb-type-c-pci-e-card-2-port-hub-usb-c-pcie-express-controller-usb-3-1-adapter/12314229.aspx?
– buildingsramen – 2018-02-01T03:47:14.917I can't find the manual online, and the best buy and other pages don't list the rated power output of the card. Does the manual list a power output rating and whether or not that the number is per port or for both ports? – cybernard – 2018-02-01T03:53:31.343
Previously, I have done some research on similar cards and USB type C, when implemented properly, supposedly can do 5A. Back to reality, 99% of the cards I found were in the 1A to 1.5A range. – cybernard – 2018-02-01T04:01:40.693
https://www.startech.com/Cards-Adapters/USB-3.0/Cards/2-port-pcie-usb-3-1-card~PEXUSB312C This card actually states it provides up to 3A of power per port. – cybernard – 2018-02-01T04:05:22.530
This card looks visually identical as far as I can tell, and is listed as being able to output 5V and 2A on each port: https://www.amazon.ca/SDS-Express-Connector-Superspeed-Windows/dp/B01NCQUET8/ref=sr_1_5
– buildingsramen – 2018-02-01T04:05:47.467Let us continue this discussion in chat.
– buildingsramen – 2018-02-01T04:12:06.247You would have to do a component by component comparison. The axgear company doesn't even have a website. Cards of this super generic design are usually 900ma, especially when they omit the ratings from their documentation. – cybernard – 2018-02-01T04:14:31.473