M571 mobo and dead mouse (PS2 & serial)

[gporter]

I have six PCs with M571 motherboards (V3.2a) at my church where I provide all of the PC support. (I also have another one that belongs to my wife.) Therefore, I was glad to find some support for this mobo.

Current problem is one PC that suddenly stopped recognizing a mouse. OS is Win98. (No one admits to a "hot" unplugging of the PS2 mouse, but....) When Win98 first displays the desktop background, it also displays a message that says Windows did not find any mouse attached. I have replaced drivers for both serial and PS2 types, and tried both PS2 and serial rodents. No luck.

I replaced the HD about two weeks ago on this particular unit (WD 10GB). Entire unit was cleaned and all cards/connectors reseated at that time (my standard practice whenever opening a case). I believe the BIOS version to be 8/31/98 release. The units were all purchased from TigerDirect.

Any ideas on why the system will not recognize any type of mouse?

TIA,
George

[jim chase]

My experience with the M571 was with a M/B from Tiger Direct also.:)

I will assume two things, one that you have tried known good or new mice only with adapters that they came with and two you have checked the serial and ps/2 cable connections on the M/B (oh yes, the M571 doesn't use a ps/2 cable).

Almost forgot, besure the serial ports are enabled in the bios.

I would guess you have a corrupted driver or entry in the registry. As I'm not too sure what to do with the registry, I would save my data and do a format c: and reinstall windows. You might try a reinstall without formating and see if that corrects the mouse problem first.

Reread your post and Win98 says no mouse was detected, that kinda negates the above paragraph (but I would use it as a last resort). You should be able to get a serial mouse to work. Check the serial ports in the bios. Use only the serial cables that came with the M/B. Use a serial mouse only with the adapter it came with (if it uses a ps/2 to serial adapter).

Jim

[sonyfier]

I will add this as I had recent experience like it when I changed from a serial to a ps2 mouse on my m571.

Delete all references to a mouse and drivers in device manager and then you will have to navigate out and shutdown with tab key as you will lose mouse so don't have too many windows open.
Restart computer and go into bios by hitting delete, in one of the menu's is enable ps2 mouse....... enable mouse and save and exit.
Windows should pickup the mouse during startup, if it doesn't it will be because IRQ 12 has been allocated to something else and on the m571 the ps2 mouse must use IRQ 12
If you have to then manually shift around the irqs or reserve irq12 for mouse. sorry to be vague as to how to accomplish this but I can't exactly recall how I did it, but the ps2 mouse MUST go on irq 12 and it can't be shared with something else.

Goodluck