īy overloading the usb current supply, results in damage to the apic chip which controls power management. Most motherboards only have a limit max of 1 amp, but newer boards can have up to 2 amp supply, you need to confirm that with the motherboard manual or from online sources. The problem is common where users do not add up all the usb devices, connected to the pc, to find out the total current drawn from the usb system, and overload the usb supply in doing so. Sounds like an apic chipset issue (power management), affecting the northbridge chipset (video / usb / ect). If the board is under warrantee, rma it asap. Thanks again for all of the help and suggestions. Will this card enable all 6 ports to 2.0 or is this a card with openings in the back and that is where I would plug the USB devices? If I lose the ports in the front I might as well go with a new motherboard as that is why I got them to begin with - not having to crawl around behind the computer. I think I'm about out of options other than leave out the video card from the PCI slot and get a USB card that some have mentioned or new motherboard. I haven't tried plugging the SanDisk back in any of the ports. If I disable ECHI in the BIOS then it will read everything in all 6 ports, but only at 1.1 speed.ġ0. The only thing it will read with ECHI enabled in the BIOS is a 1.1 card reader.ĩ. If I plug any 2.0 device into any of the back 4 ports the computer locks up.Ĩ. After everything I have done - I don't have the yellow exclamation mark beside Standard Enhanced PCI to USB Host Controller - but when I try plugging a 2.0 device into the front 2 ports I get the message that the USB Device Not Recognized - I take it across the room to another computer and there's no problem - so it's not the device.ħ. I am using XP Home and do have SP2 installed so there should be support for USB 2.0.Ħ. I do have the CD for the board and did re-install the chipset drivers - no change.ĥ. I have taken out the video and sound cards (now using onboard) thinking maybe the IRQs were conflicting - no change.Ĥ. Media Player 10 was the software that worked with the SanDisk mp3 player.ģ. There really isn't any software installed for these things - I just either installed drivers - for printer and scanner and XP installed drivers for the rest. I've uninstalled and re-installed - no difference.Ģ. I did try unplugging everything and rebooting - no difference. Wow! Thanks to everyone for sending suggestions.ġ. Hi-Speed USB 2.0 controllers are now disabled and should eliminate the Yellow BANG (!) in Hardware Devices.įor addition BIOS Setup program configuration information, be sure to refer to the Technical Product Specification for your Intel Desktop Board. Press "F10" to Save & Exit BIOS setup program Select "ADVANCED" menu using arrow (left and right) keysĦ. Press "F2" during POST (Power-on Self Test) to enter system BIOS setup programģ. Follow the steps below to disable Hi-Speed USB 2.0.Ģ. If you are using an operating system that does not support Hi-Speed USB 2.0, recommendation is to disable feature in the system BIOS setup program. If you are using the following operating systems, refer to enabling Hi-Speed USB 2.0 drivers:Īll other operating systems do not provide USB 2.0 support. Yellow BANG (!) in Device Manager for USB Controller If I disable ECHI in the BIOS all 4 of the back USB ports will work in 1.1 - however neither of the front 2 will work in 1.1 or 2.0.Ĭan anyone tell me anything else I can try or is this a sign of something more? I had the yellow exclamation mark beside the Standard Enhanced PCI USB Host Controller and got the message that it could not be started.Īnyway, after uninstalling the controller, re-installing SP2 for XP Home and trying other different things - using diagnostic startup, etc this is what I discovered. He said he went through the safely remove hardware steps when he disconnected so I suppose them not working and the mp3 player are not related After unplugging it the computer wouldn't recognize anything. My son was using his mp3 player in the other front one - SanDisk- loading some songs on it. I had a scanner, printer, the mouse and 1 card reader plugged in the back and a card reader plugged into one on the front. All of a sudden all 6 (4 in back, 2 in front) USB ports stopped working. I have an Intel D101GGC Motherboard with an Intel LGA775 3.0 GHZ processor.
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