I have had this problem for a while, even after swapping motherboards a while ago. Quite simply, I have a Blu Ray drive and a DVD drive, sometimes both will not be detected, sometimes just one, and sometimes both will. If I restart my computer, it'll change, meaning they'll show up or not show up in a different pattern, this is infuriating.
Same problem is happening with my USB devices, things like my keyboard, mouse and microphone will always get recognised, but sometimes - if I plug in my thumb drive it'll give me the 'USB device not recognised) shit, if I restart my computer with it plugged in it will turn up, same thing happens with my external hard drive and printer.
Anybody have any idea what the problem could be? Bad drivers? Hardware conflict? Bad motherboard?
The fact that your DVD drives [i]and[/i] USB devices are having the same problem suggests it's a problem with the motherboard. Try updating your BIOS if there's a newer one available.
Edit: wait, you had the same problem after swapping motherboards? Bah, rated myself bad reading.
Since the Blu-Ray/DVD-Drives connect to the motherboard using an interface that is entirely unrelated and uncontrolled by the USB controller (and vice-versa) I would be inclined to say either a bad mobo (unlikely, considering you tried swapping motherboards), or bad drivers.
I would try starting the computer with one component at a time, and if it works for them all, then add an other component to the combination, and so on, until you find the component that could be causing the problems (the devices will start acting up with it active).
Within windows, remove all the drivers of the problem-devices in question, turn the computer off, open the case up, take the CMOS battery out, wait 10-15 minutes, put it back in (why the long wait? the CMOS uses so little power, it can retain memory without power for quite a while, a christmas tree lightbulb uses about 10x more power), restart the computer, enter the BIOS, and reset to factory defaults (it might just say, defaults), and restart again, and if you have any custom stuff set in the BIOS (an overclock, or you may need to assure that the BIOS is using all components at their max potential, as some BIOS'es will set DMA settings down, etc) enter that. Now log into windows, download the drivers for all the devices from the manufacturers website (don't use windows update unless the manufacturers website has no driver for the devices) and install them, restart again, and that should fix the problems.
Why reset the BIOS by taking the CMOS battery out? That should clear any IRQ adressing related problems.
Sorry, you need to Log In to post a reply to this thread.