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Re: I/O ports and Ps2 issues
Not at all. you can put any memory stick as long as it's working. hmmmmmm.. so you do get video, but can't move the mouse or do anything with the keyboard. oh hold on, do you have any "feet" between the motherboard and case??
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http://download.cnet.com/%7Bvalue=http://www.download.com/webcam-diagnostics/3000-2348_4-10504755.html Webcam Diagnostics (CamDiag) is a simple assistant which gathers many system and Webcam-related information in a single place. It makes it easy to identify issues regarding DirectShow, Webcam driver installation or USB: red circles show serious issues and yellow triangles show minor issues. Right-click a reported issue and click Fix (if available) to actually fix the issue or to get information about ways to fix it.
Unlikely to be issues with the OS. Have you recently upgraded to Win 7 from Vista or XP? and did the USB ports work with this OS? Do ALL usb ports fail or is it just one or two and are these the front USB's or rear USBs?
There is nothing that can be easily replaced on a motherboard if your PS2 port has malfunctioned. Check your bios, if you have a setting labelled 'legacy mouse/keyboard support' make sure it's set to enabled. You should still be able to install windows while your keyboard is connected to the USB port. If everything checks out in your bios and you're still having this problem, it could be that you're using a USB to PS2 adapter, which causes some computers to glitch. Try another keyboard if you have one handy, it could simply be a compatibility issue with the windows installer.... rare, but I've been caught with it before.
This isn't a sound issue this is a Virtual IRQ issue. Emachines are virtual machines. That means that all of the hardware is emulated by the software through the motherboard. The PCI Simple Controller is the Emulation IRQ. You need to install your motherboard's chipset drivers again. Since Emachines are emulated hardware nearly everything is tied into something else, often the time its things not related to each other. Download http://www.soft32.com/download_182376.html which is a driver for the PCI Simple Com and see if that helps.
Like always I'm sorry for I have to be the one who's giving the bad news. The problem you face is related to a complex issue with the keyboard and mouse receiver electronics. More precisely these devices emulate a standard ps2 interface but adapts it to work with a usb port. This emulation should work fine but has some limitations. A motherboard has some 2-4 usb main ports that can be hard wired to some 1-2 usb hubs mounted also on the motherboard. A urb hub has the advantage of replicating a usb port so more then 1 devices can be connected at the same time, sharing the same interface. Motherboard manufacturers use this to enable their products to have more usb ports available to the user. However there are some devices that aren't compatible to be used through these usb hubs and must be connected directly to a usb port in order to use the full bandwich. Wireless keyboards and mices, or usb to ps2 adapters are such examples. As hard as you may try these woun't work untill you replug them at every restart because they can't be properly initialised through a usb hub. most of these devices have been optimised for such uses and don't display such problems, but as you see not all of them. The only solution in your case would be to change the usb port where you plug these devices. Maybe your motherboard has some 1-2 usb ports that aren't run through a usb hub. Those ports would work fine. If this doesn't help, then there's no other way to make those 2 devices more "compatible" to eachother.
Hope you'll be lucky with finding the right usb plug in your motherboard. Just try every one of them, reinstall the drivers if needed, and check to see if this solves the problem.
the only thing I can suggest in this scenario, is to go through your BIOS again, and check for options to enable/disable your PS2 ports, and that's the best-case outcome.
worst case outcome is that when you were swapping your hard drives, an improper circuit was made, and static (ESD) killed a component on your motherboard. Did you use a grounding strap, or ground yourself when you had the case open? another thing to check for, is if the wires connecting the ports are whole, and not bent or loose.
if this doesn't help, i'd definatly go with the USB adapter, to see if that works. if not, there is a possibility you might have to buy a new motherboard, in itself.
What I'd try is go into the BIOS setup, and set your serial port for COM1 IRQ4 (Interupt) and 3F8H (address), if these latter notations are listed. Often, you will see the serial port, parallel port, etc. set to Auto.
You may want to see if the PS2 port can be set to a specific Interupt and address also, just as long as the settings are not in use by another device.
These kind of problems can be hard to pinpoint, but hopefully the above will solve your issue.