Wireless Keyboard Freezes After Memory Upgrade

[Phantom]

Good afternoon.

I currently run an PC with an Intel Celeron processor on an Intel Motherboard Model # D845GVFN.  I'm running it with Windows XP Media Center edition.  I also use a Microsoft wireless multimedia keyboard and wireless mouse.  When I originally purchased the PC, I had 512MB DDR chip in the DIMM0 slot.  I recently installed 2 1MB DDR chips in DIMM0 and DIMM1.  I boot up my PC and, when I get into Windows, can use the wireless mouse fine.  However, when I press any key on the keyboard, the keyboard and mouse stop working; the PC will still keep running as normal.  When I try to get the properties of the keyboard, the system does not even show a keyboard attached.  The BIOS also logs a "keyboard not functional" error.

I have noticed that whenever I remove the 1MB chip out of DIMM1, the keyboard and mouse work fine.  Also, I've also replaced the wireless keyboard with a regular, wired keyboard while using the wireless mouse and having both 1MB chips installed, and the system works fine.  So, it seems to be something wrong with the wireless keyboard when both memory chips are installed.

I've updated the drivers for the keyboard, and updated the BIOS.  However, I'm still running into these issues. 

Any advice on how to get the wireless keyboard working with the PC and upgraded memory would be greatly appreciated.

Thanks.

Paul

[drmsucks]

Batteries for the keyboard? Re-locate the receiver? Re-sync the keyboard to the receiver?

Good luck! Post back and let us know how you make out.

[Phantom]

Batteries for the keyboard? Re-locate the receiver? Re-sync the keyboard to the receiver?

Good luck! Post back and let us know how you make out.

Thanks for the post.  However, I had recharged the batteries (new rechargeables) recently so they batteries are good.  I also tried re-syncing the keyboard too over the last couple of days.  The receiver is about 1 foot away from the keyboard.

[drmsucks]

Hard for me to believe that the onboard memory would affect the wireless kb and mouse. What model kb and mouse?

[patio]

Relocate any other wireless and RF prone devices in the room including cordless phones radio amps and any other wireless devices...

[Phantom]

Relocate any other wireless and RF prone devices in the room including cordless phones radio amps and any other wireless devices...

Unfortunately there's nothing else in the room other than the desk, the PC and a lamp.

[drmsucks]

What model kb and mouse?

[Phantom]

What model kb and mouse?

It's a Microsoft Wireless Multimedia Keyboard 1.0A and Microsoft Wireless Optical Mouse 2.0A.

[drmsucks]

Well...nothing difficult is ever easy!

Does your receiver connect via PS/2 jacks or USB? If latter, is 'Legacy Support' for USB enabled in the BIOS? If latter, are you connected direct to the computer or through a hub?

Is the keyboard (and mouse) properly identified in Device Manager? Any yellow marks?

Try to uninstall drivers, re-boot and re-install drivers.

Please post back.

[Annon]

Try to uninstall drivers, re-boot and re-install drivers.

I would say this is your best bet.