Powered usb hub is setting fans on in my pc??? when i plug my hub in the back of my pc all my fans come on and cpu fan comes on when the pc is not powered up ?? it is switched so why is this happening julie
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Solution is to re-install USB Root HUB > Make sure you disconnect all USB devices before you follow these directions. Use a PCI mouse and/or Keyboard to do the following. You may try using a USB mouse, but often times you'll uninstall your mouse's USB Root HUB before you completely uninstall all the other USB Root HUBs making your mouse useless. Follow the steps in the link over and over until all USB Root Hubs are uninstalled. Restart your PC and then slowly add one USB device at a time.
Side notes: Keep in mind if you have way too many USB devices you will need a Powered USB HUB. You can buy them cheap, and they are worth it. Often times folks plug more USB devices than their motherboard/power supply can handle or they rotate like 40 devices on one PC. Rotating is OK, but you might want to follow these steps to make sure your PCs USB is working OK.
Your USB hub cannot provide enough power for your external hdd, you can try to plug it in directly to any free USB port for the mean time to check if its detected or not, if it has a power button ( which is not normal for regular USB powered EXT HDD) make sure that it is on, if its still not working try to use a different cable, a known good cable or plug it in to a different computer to check if its your USB port, or the usb cable or the ext hdd that is causing the issue
Slap a voltmeter on the Power Supply for the USB Hub and make sure it is still working. It really sounds like what happens when you connect a device to a unpowered hub that is not capable supplying enough power.
hi your problem is caused by heat and a faulty power switch board in front which is also connected to usb and front audio first the heat problem download program fan control I8kfanGUI this program is free fan control set you fan speed to max to cool cpu dell made bad design on cooling. net you have to set bios on pc to auto power on pc after power loss unplug pc do not power off by windows now disconnecgt the ribbon cable that connects to front power switch plug pc back in and it will auto boot.pc should have no more problems the little board in front is faulty and dell e510 all have this problem unfortunately you lose usb ports but you get system stable again.
Use the USB ports that are on the back f the PC, not the front ones or the one on the keyboard, these are low power USB ports. You can also purchase a powered hub that supplies its own power. The maximum draw on 1 USB port is 500ma, shared across all devicesattached to that port including non powered hubs. My USB PC-cam took 450 all by itself!