fadih
asked on
can't find the mouse
DEAR EXPERTS
I HAVE A PENTIUM 166MMX ,AN INTEL TX BOARD "TOMATO",
A 24X CD DRIVE,A 1.6 MAXTOR HDD,32 MEG EDO RAM,DCS SOUND.
THE SYSTEM CANNOT FIND THE MOUSE ANYMORE . IN ORDER TO
ISOLATE THE PROBLEM I HAVE DONE THE FOLLOWING (EACH AT A TIME:)
-CHANGED THE CABLES THAT CONNECT THE MOUSE TO THE BOARD
-CHANGED THE HARD DISK
-REINSTALLED WIN95 ;NOTE THAT EVEN DOS CAN'T FIND THE MOUSE.
-CONNECTED A PS/2 MOUSE TO THE BOARD
- I HAVE MADE SURE THAT PIN 1 IS ALIGNED.I EVEN TRIED THE OTHER
WAY AROUND.
-I HAVE MADE SURE THAT THERE IS NO CONFLICTS IN THE DEVICE
MANAGER AND THAT ALL PORTS (COM1-2,LPT1) ARE PRESENT.
-I HAVE SWITCHED THE LOCATION OF THE MOUSE FROM COM1
TO COM2.
-I HAVE LOOKED IF THERE IS AN OPTION IN THE BIOS TO TURN
THE MOUSE ON AND OFF BUT I COULDN'T FIND ANY.
ALL THAT AND MORE.. THE MOUSE STILL DOESNT WORK!!!
FINALLY I HAVE SUSPECTED THE MOTHERBOARD SO I HAVE
MOVED ALL THE COMPONENTS TO A NEW MOTHERBOARD
BUT GUESS WHAT ?? THE NEW MOTHERBOARD CAN'T FIND
THE MOUSE.!!!!!!
WHAT IS THE PROBLEM IN YOUR OPINION? DID I OVERLOOK
ANYTHING? IS THIS A COMMON PROBLEM? WHAT COULD HAVE
CAUSED SUCH A PROBLEM ?
I HAVE A PENTIUM 166MMX ,AN INTEL TX BOARD "TOMATO",
A 24X CD DRIVE,A 1.6 MAXTOR HDD,32 MEG EDO RAM,DCS SOUND.
THE SYSTEM CANNOT FIND THE MOUSE ANYMORE . IN ORDER TO
ISOLATE THE PROBLEM I HAVE DONE THE FOLLOWING (EACH AT A TIME:)
-CHANGED THE CABLES THAT CONNECT THE MOUSE TO THE BOARD
-CHANGED THE HARD DISK
-REINSTALLED WIN95 ;NOTE THAT EVEN DOS CAN'T FIND THE MOUSE.
-CONNECTED A PS/2 MOUSE TO THE BOARD
- I HAVE MADE SURE THAT PIN 1 IS ALIGNED.I EVEN TRIED THE OTHER
WAY AROUND.
-I HAVE MADE SURE THAT THERE IS NO CONFLICTS IN THE DEVICE
MANAGER AND THAT ALL PORTS (COM1-2,LPT1) ARE PRESENT.
-I HAVE SWITCHED THE LOCATION OF THE MOUSE FROM COM1
TO COM2.
-I HAVE LOOKED IF THERE IS AN OPTION IN THE BIOS TO TURN
THE MOUSE ON AND OFF BUT I COULDN'T FIND ANY.
ALL THAT AND MORE.. THE MOUSE STILL DOESNT WORK!!!
FINALLY I HAVE SUSPECTED THE MOTHERBOARD SO I HAVE
MOVED ALL THE COMPONENTS TO A NEW MOTHERBOARD
BUT GUESS WHAT ?? THE NEW MOTHERBOARD CAN'T FIND
THE MOUSE.!!!!!!
WHAT IS THE PROBLEM IN YOUR OPINION? DID I OVERLOOK
ANYTHING? IS THIS A COMMON PROBLEM? WHAT COULD HAVE
CAUSED SUCH A PROBLEM ?
Did you check for virus?
Did you try swapping the mouse with a known good one?
You say that you can't find the mouse anymore, was there a time when the mouse *was* there. I also noticed that you didn't mention anything about using the hardware installer, have you?
Is the mouse a new one or a used mouse?
Sorry to be asking so many questions about your question, but if the mouse was working before and not working now. It must be damaged or unrecognized by the win95 installer, try reinstalling the mouse by using the hardware installer in control panel. If you have the original disks for the software use those as the drivers when the find hardware program prompts you for the drivers for the mouse.
If I can be any more help let me know....Steve
Is the mouse a new one or a used mouse?
Sorry to be asking so many questions about your question, but if the mouse was working before and not working now. It must be damaged or unrecognized by the win95 installer, try reinstalling the mouse by using the hardware installer in control panel. If you have the original disks for the software use those as the drivers when the find hardware program prompts you for the drivers for the mouse.
If I can be any more help let me know....Steve
Sounds like a strange one. Have you tried plugging another known good serial device into those ports?
Dear Fadih
Pull all your extra boards out and try with just the mouse connected. Tell Windows 95 to search for new hardware.
If that does not do it you probably have a bad Bios chipset. I expect you have already checked with another mouse that you know works and is an MS mouse.
Pull all your extra boards out and try with just the mouse connected. Tell Windows 95 to search for new hardware.
If that does not do it you probably have a bad Bios chipset. I expect you have already checked with another mouse that you know works and is an MS mouse.
I was having the same problem after upgrading my motherboard. Have you upgraded your motherboard lately?
Secondly, is COM1 enabled in your CMOS
Secondly, is COM1 enabled in your CMOS
Your mouse is busted simple as that, buy a new one!
ASKER
I have tried three working mouses.
I think com1 is enabled but i am not sure;how do you enable com1 in amibios anyway?
In case the bios is corrupted ,how do you change it? howcome the other board can find the mouse ?what cause the bios to become corrupted?
I AM USING ALL THE OTHER COMPONENTS FROM MY OLD SYSTEM IN A NEW
SYSTEM AND THEY ARE ALL WORKING FINE.
I think com1 is enabled but i am not sure;how do you enable com1 in amibios anyway?
In case the bios is corrupted ,how do you change it? howcome the other board can find the mouse ?what cause the bios to become corrupted?
I AM USING ALL THE OTHER COMPONENTS FROM MY OLD SYSTEM IN A NEW
SYSTEM AND THEY ARE ALL WORKING FINE.
I'm a little confused. Are you using a PS/2 mouse or a serial mouse? If it's a PS/2 then your wasting your time changing Com ports because it doesn't use a Com port. If it is serial, have you used the old Com port hardware off of the old motherboard or did you use the new ones that came with your system? I'll try to help you the best that I can, but I need you to answer my questions first.
Thanks,
Michael
Thanks,
Michael
I think the problem is the cable from your motherboard to your fysical comport, there are two kinds of that cable, try another one!!!
Fadih,
If you use serial mouse. And used the old components from the old computer.
Did you check it the cable connect from 9 pins port (serial) to the I/O control if the red aligned on bin 1?
on old I/O control board. there are Jumper that can be use to disable the COM, If you had the
modem intalled in the old computer. you might have disable the COM originally.
In WIN95, it is possible to add a COM before the hardwear present. For Haha.. remove the COM and Mouse. TURN OFF the computer in the middle of WIN95 (yes!! without shut down)
Power the computer back ON to see if it works!
If you use serial mouse. And used the old components from the old computer.
Did you check it the cable connect from 9 pins port (serial) to the I/O control if the red aligned on bin 1?
on old I/O control board. there are Jumper that can be use to disable the COM, If you had the
modem intalled in the old computer. you might have disable the COM originally.
In WIN95, it is possible to add a COM before the hardwear present. For Haha.. remove the COM and Mouse. TURN OFF the computer in the middle of WIN95 (yes!! without shut down)
Power the computer back ON to see if it works!
I would have to agree with Mark, I believe it's your com port cable also.
Mike
Mike
ASKER
Dear Expert
I will try to answer each each..
mikecr: neither ps/2 nor serial mouses are working in neither motherboard.I am using
new ports(cables)
mark aerts: I will try another cable .What difference is there between the two?
goober1: i didn't understand well how to add a com port .I know how to do it the regular
way.What jumper disables or enables com ports usualy?
Thank you
I will try to answer each each..
mikecr: neither ps/2 nor serial mouses are working in neither motherboard.I am using
new ports(cables)
mark aerts: I will try another cable .What difference is there between the two?
goober1: i didn't understand well how to add a com port .I know how to do it the regular
way.What jumper disables or enables com ports usualy?
Thank you
That's about the strangest thing I've ever heard of (except for a bugless Win95...
but it turned out to be wrong. Very wrong). Let's take a look. YOu've tried
3 mouses, so the problem isn't in the mouse. You've tried two motherboards, so it's probably not there as well. Your software... might be. BIOS - check in Peripherials
(or wherever it is in ur BIOS) for COM1 Adress and IRQ. It might be disabled or altered,
which might cause problems.
Ask the manufacturers why the give you com ports when you buy a motherboard. When I changed my first motherboard, a long time ago, I has the same problem with it finding the mouse. I had used the old port cables from my old computer. When I used the new ones that came with the motherboard, it had no problem finding the mouse. What's up with that! As I've found out some parts are just not interchangeable.
Mike
Mike
Come to think of it, check the cable that connects the motherboard to the COM port
(inside the case), U might have a loose contact there (if u done something inside,
the cables are often moved and thus might loose contact.
ASKER
I have tried many type of serial cables ,all won't work.The motherboard must
be defective .But what kind of defectt can cause the board to act like there is no mouse?
What can i do to avoid such problem in the futur?
If i change the bios ,will it work normaly again?
Thank you
be defective .But what kind of defectt can cause the board to act like there is no mouse?
What can i do to avoid such problem in the futur?
If i change the bios ,will it work normaly again?
Thank you
Hmm... Perhaps it's the serial bus... Try linking two PC's with a serial cable and look if
it works.
it works.
There is a common problem with Windows that I found: When it loses a hardware device or uninstalls it, it doesn't fully remove it. Try this: unplug your serial mouse, boot up in safe mode, goto to device manager, delete all COM ports and mouse devices. Plug your mouse back in a restart. See what that does...
ASKER
How about ps/2 mouse will it work if serial bus is corrupt ?
How can i fix serial bus?
How about if i change the bios?
How can i fix serial bus?
How about if i change the bios?
Are you able to run a differnet device off the serial ports? Say, your modem, just to confirm the ports are live..
Probably a daft question, but are you sure that the leads plugging the COM port on the case into the motherboard are the right way round?
It's really easy to connect them the wrong way up, because the lead will plug in either way up.
Windows 95 will find the serial ports because it is looking for the UART rather than the physical connection, and it might not find the mouse simply because you plugged it in upside down.
It's really easy to connect them the wrong way up, because the lead will plug in either way up.
Windows 95 will find the serial ports because it is looking for the UART rather than the physical connection, and it might not find the mouse simply because you plugged it in upside down.
ASKER
jmcclell:windows can't find other devices neither.(i have tried two modems)
tstaddon:leads plugging the COM port on the case into the motherboard are plugged the right way (pin 1 is aligned)
tstaddon:leads plugging the COM port on the case into the motherboard are plugged the right way (pin 1 is aligned)
Dear Fadih
If Windows could not find modems plugged into the ISA slots, then you definitely have a motherboard problem. They go right into the bus, no ifs or buts about it.
If Windows could not find modems plugged into the ISA slots, then you definitely have a motherboard problem. They go right into the bus, no ifs or buts about it.
Dear Fadih
If Windows could not find modems plugged into the ISA slots, then you definitely have a motherboard problem. They go right into the bus, no ifs or buts about it.
If Windows could not find modems plugged into the ISA slots, then you definitely have a motherboard problem. They go right into the bus, no ifs or buts about it.
**************************
Last solution: Check the port setting in the BIOS they might be
disabled or their ports/IRQ's might be changed and conflicting!
I've suggested this earlier did u check this?
**************************
U can't change busses or BIOS's in most motherrboards.
You should however:
a. Check if you have the shop/manufactorer's warranty
b. Get another motherboard (they are cheap these days )
c. Grade this question
(hehe, I proposed the problem with the serial bus)
:) Well sorry I can't help u more than that...
Last solution: Check the port setting in the BIOS they might be
disabled or their ports/IRQ's might be changed and conflicting!
I've suggested this earlier did u check this?
**************************
U can't change busses or BIOS's in most motherrboards.
You should however:
a. Check if you have the shop/manufactorer's warranty
b. Get another motherboard (they are cheap these days )
c. Grade this question
(hehe, I proposed the problem with the serial bus)
:) Well sorry I can't help u more than that...
ASKER
Last question.
How do i repair the serial bus if it is corrupt?I have most of the tools(i own a
computer shop)
How do i repair the serial bus if it is corrupt?I have most of the tools(i own a
computer shop)
I think you'l be having a lot of problems if u do that. If u still want to:
a. ID any Bus chips present on board, like the UART chip (16550A?)
b. See if they are removable
c. Replace with the suitable chip.
a. ID any Bus chips present on board, like the UART chip (16550A?)
b. See if they are removable
c. Replace with the suitable chip.
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