can't use both front usb ports

FesteringDoubt

Commendable
Jan 10, 2017
1
0
1,510
on my case are 2 front facing usb ports, if I use just one (either of them) then everything is fine, but if I use both then the last thing plugged in doesn't work, there is charge as it charged my Ipod when I had something plugged in the other port, but neither windows nor Itunes recognised it.
 
Solution
Sounds like a power issue. Most front USB ports connect to a single header on the motherboard, so there are 2 cables running from the USB ports to a single connector that plugs into the motherboard. Seems that there is enough power for the first device to get a data connection but not enough for both devices to get data connections when you plug in the second device. your ipod, etc is recognizing that it is getting enough power to charge but it doesn't take much for that to happen, the data connection requires more power.

You might be able to get new front USB ports and see if that fixes the issue.
Sounds like a power issue. Most front USB ports connect to a single header on the motherboard, so there are 2 cables running from the USB ports to a single connector that plugs into the motherboard. Seems that there is enough power for the first device to get a data connection but not enough for both devices to get data connections when you plug in the second device. your ipod, etc is recognizing that it is getting enough power to charge but it doesn't take much for that to happen, the data connection requires more power.

You might be able to get new front USB ports and see if that fixes the issue.
 
Solution
Do both of the usb ports work if you plug low-power drawing devices (flash drives) into them. If so that would confirm that the single header on the motherboard does not supply enough power for 2 higher-power drawing devices. If I try to plug in my external HDD (WD MyPassport) to either of the front usb ports, it doesn't get recognized, but 2 usb flash drives work fine.
 
in my case if i plug my external hdd with the original usb cable given from toshibha in one of the front cases it gets recognized but in the other front port it fails to reconize. In the back ports it gets recognized.2 usb flash drives gets recognized in the front ports. I checked the voltage output of the front port with a multimeter and it gave 5 dc voltage under full load.TO remove this problemn i bought a full port ic panel ( https://www.amazon.in/SuperCart-Computer-Front-Panel-Earphone/dp/B07H32QLHS?tag=googinhydr18418-21 ) this one from nearby market .But still the problem prevails.