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A puzzling question.....
I put together a computer for my stepmother (with a DTK PAM-0055I MB)
which has a Pentium II 450 MHZ processor in it. It includes Intel 82430HX system chipset & NS PC87306 Super I/O controller. Without going into all the other hardware on the computer, let me simply state what I feel is critical to know. It has a Parallel port on the MB (LPT1), and one installed via a PCI Netmos card (LPT2). Both are set for ECP/EPP and the computer has Win 98 SE loaded on it. Now to the puzzle: What I found is that if her printer (a Lexmark Z22) were turned on during the loading of Windows, the P/S2 mouse would NOT be detected by Windows. On the other hand, if it is turned off during this boot up, it DOES detect the mouse. This occurs every time, and it does not matter to which parallel port the printer is attached. Once the mouse is detected, turning on the printer has no ill effects on the mouse and the printer prints fine. She also has a parallel port scanner (hence the two parallel ports) and placing the scanner cable on either parallel port during Windows boot up does NOT have any effect on the mouse if the scanner is turned on. The computer runs fine with no other hang ups or problems. I told her not to have her printer power on during the loading of Windows in order to avoid this problem, but for the life of me I cannot understand how having her printer power on could effect the mouse as it does. Any theories???? Ken |
#2
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wrote in message ... I put together a computer for my stepmother (with a DTK PAM-0055I MB) which has a Pentium II 450 MHZ processor in it. It includes Intel 82430HX system chipset & NS PC87306 Super I/O controller. Without going into all the other hardware on the computer, let me simply state what I feel is critical to know. It has a Parallel port on the MB (LPT1), and one installed via a PCI Netmos card (LPT2). Both are set for ECP/EPP and the computer has Win 98 SE loaded on it. Now to the puzzle: What I found is that if her printer (a Lexmark Z22) were turned on during the loading of Windows, the P/S2 mouse would NOT be detected by Windows. On the other hand, if it is turned off during this boot up, it DOES detect the mouse. This occurs every time, and it does not matter to which parallel port the printer is attached. Once the mouse is detected, turning on the printer has no ill effects on the mouse and the printer prints fine. She also has a parallel port scanner (hence the two parallel ports) and placing the scanner cable on either parallel port during Windows boot up does NOT have any effect on the mouse if the scanner is turned on. The computer runs fine with no other hang ups or problems. I told her not to have her printer power on during the loading of Windows in order to avoid this problem, but for the life of me I cannot understand how having her printer power on could effect the mouse as it does. Any theories???? Windows' inadequacy to deal with P&P. Set to non-P&P OS in bios and the IRQ's on 'manual' assignment. Just a thought. |
#3
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jona wrote: wrote in message ... I put together a computer for my stepmother (with a DTK PAM-0055I MB) which has a Pentium II 450 MHZ processor in it. It includes Intel 82430HX system chipset & NS PC87306 Super I/O controller. Without going into all the other hardware on the computer, let me simply state what I feel is critical to know. It has a Parallel port on the MB (LPT1), and one installed via a PCI Netmos card (LPT2). Both are set for ECP/EPP and the computer has Win 98 SE loaded on it. Now to the puzzle: What I found is that if her printer (a Lexmark Z22) were turned on during the loading of Windows, the P/S2 mouse would NOT be detected by Windows. On the other hand, if it is turned off during this boot up, it DOES detect the mouse. This occurs every time, and it does not matter to which parallel port the printer is attached. Once the mouse is detected, turning on the printer has no ill effects on the mouse and the printer prints fine. She also has a parallel port scanner (hence the two parallel ports) and placing the scanner cable on either parallel port during Windows boot up does NOT have any effect on the mouse if the scanner is turned on. The computer runs fine with no other hang ups or problems. I told her not to have her printer power on during the loading of Windows in order to avoid this problem, but for the life of me I cannot understand how having her printer power on could effect the mouse as it does. Any theories???? Windows' inadequacy to deal with P&P. Set to non-P&P OS in bios and the IRQ's on 'manual' assignment. Just a thought. You know, that is one thing that never crossed my mind. The computer is 1000 miles from me and I don't think I want my 85 year old stepmother to alter the CMOS settings, but this is as good a theory as I have heard. Thanks. Anyone else with a theory?? |
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