I pulled my IBM P75 out of the closet to install the network card and it always gives me error "error 161 bad battery" and "error 163 wrong time and date". Even changing the battery with a new one and setting it correctly, after the post it automatically enters the bios telling me errors 161 and 163. What could have happened to it? When I put it away it was working.
You may need to boot with the IBM reference diskette for P75 and reset the date/time after changing the battery.
thanks!! but.. i found only reference diskette for PS/2.. is the same?
Did you say that every time the battery is ended i need to reset the date/time by diskette?!?!?!?!
Check this article out: https://www.retropaq.com/tips-tricks-restorat … y-getting-post/
Try reference disk from the top of this page https://ardent-tool.com/8573/8573-P75.html
My computer is an IBM PC330 P75 not the one you describe me. It is a normal Pentium 75Mhz.
I see....; Your first post was a little misleading specifying "my IBM P75".
Well, do date/time settings get reset when you turn the computer off ? What about other BIOS settings, do they get reset to defaults ?
Zerthimon wrote on 2021-10-27, 20:23:Check this article out: https://www.retropaq.com/tips-tricks-restorat … y-getting-post/
Try reference disk from the top of this page https://ardent-tool.com/8573/8573-P75.html
Yes, you're right, but I didn't think there was an IBM P75 that wasn't a Pentium75Mhz. Anyway, did you understand the right model?
This happens. Imagine the computer turned off. I turn it on, and immediately after checking the memory it enters the bios by itself, giving me these two errors, 161 and 163. Once in the bios, I set the clock and date correctly, then I select to save and finally I select to exit. At this point the computer exits the bios, but instead of loading the operating system it performs the reboot by itself from the beginning, as when you turn it on for the first time and enters the bios again by itself indicating the same errors and if I actually check the date it is again set to 01 01 1990. the one way to continue the boot and, once he has entered the bios alone, do not change the date but exit immediately, in this way he continues the boot and loads the ms- dos. once the dos is loaded I can change the date and time with the "time" and "date" commands if I set them right and immediately check them I see them set correctly, but if I perform a reset with ctrl-alt-canc on restart it enters again from only in the bios with the wrong date. at each restart it loses the date, even if it is a warm restart without interrupting the power supply by turning it off completely.
AlessandroB wrote on 2021-10-28, 06:16:Zerthimon wrote on 2021-10-27, 20:23:Check this article out: https://www.retropaq.com/tips-tricks-restorat … y-getting-post/
Try reference disk from the top of this page https://ardent-tool.com/8573/8573-P75.htmlYes, you're right, but I didn't think there was an IBM P75 that wasn't a Pentium75Mhz. Anyway, did you understand the right model?
This happens. Imagine the computer turned off. I turn it on, and immediately after checking the memory it enters the bios by itself, giving me these two errors, 161 and 163. Once in the bios, I set the clock and date correctly, then I select to save and finally I select to exit. At this point the computer exits the bios, but instead of loading the operating system it performs the reboot by itself from the beginning, as when you turn it on for the first time and enters the bios again by itself indicating the same errors and if I actually check the date it is again set to 01 01 1990. the one way to continue the boot and, once he has entered the bios alone, do not change the date but exit immediately, in this way he continues the boot and loads the ms- dos. once the dos is loaded I can change the date and time with the "time" and "date" commands if I set them right and immediately check them I see them set correctly, but if I perform a reset with ctrl-alt-canc on restart it enters again from only in the bios with the wrong date. at each restart it loses the date, even if it is a warm restart without interrupting the power supply by turning it off completely.
Is this the same board as yours (same problem):
IBM PC350 intel motherboard
yes absolutely the same
AlessandroB wrote on 2021-10-27, 18:43:thanks!! but.. i found only reference diskette for PS/2.. is the same?
Did you say that every time the battery is ended i need to reset the date/time by diskette?!?!?!?!
The majority of IBM PS/2 systems are quite using Micro Channel expansion slots.
Your cmos/bios battery is dead and needs replacing.
There's a glitch in the matrix.
A founding member of the 286 appreciation society.
Apparently 32-bit is dead and nobody likes P4s.
Of course, as always, I'm open to correction...😉
You may find this page handy as well- http://ps-2.kev009.com/pcpartnerinfo/ctstips/101e2.htm
There's a glitch in the matrix.
A founding member of the 286 appreciation society.
Apparently 32-bit is dead and nobody likes P4s.
Of course, as always, I'm open to correction...😉
If poster refers to this P75, I think he meant PS/2 plasma 486DX luggable.
In any case 161 and 163 is configuration data lost and date wrong. Needs to modify the RTC module to take external 3V lithium coin in a holder hooked up with two wires.
Cheers,
Great Northern aka Canada.
The location of the cmos/bios battery is on this diagram- http://ps-2.kev009.com/pcpartnerinfo/ctstips/93e2.htm
There's a glitch in the matrix.
A founding member of the 286 appreciation society.
Apparently 32-bit is dead and nobody likes P4s.
Of course, as always, I'm open to correction...😉
pentiumspeed wrote on 2021-10-30, 19:48:If poster refers to this P75, I think he meant PS/2 plasma 486DX luggable.
Cheers,
He corrected that in the next post. Pentium 75 PC330......
You are welcome 😉
There's a glitch in the matrix.
A founding member of the 286 appreciation society.
Apparently 32-bit is dead and nobody likes P4s.
Of course, as always, I'm open to correction...😉
OP replaced the battery, the problem he experiencing is with the new battery.
Zerthimon wrote on 2021-10-30, 21:04:OP replaced the battery, the problem he experiencing is with the new battery.
The first priority should be do to get hold of the service manual and look at the fault diagnostic section. IBM are very good for old it in this regard.
There's a glitch in the matrix.
A founding member of the 286 appreciation society.
Apparently 32-bit is dead and nobody likes P4s.
Of course, as always, I'm open to correction...😉
AlessandroB wrote on 2021-10-30, 19:07:yes absolutely the same
As in the post I linked to above, the NS PC87306 Super I/O chip holds the CMOS memory/RTC . According to it's datasheet pin 7 is Vbat. The distance between the pins is very small so with your PC turned off, carefully read the voltage of pin 7 with a multimeter. One probe on pin7, the other on ground (motherboard ground rings around screw holes.)
I only get 0.2v on this pin with pc switched off and battery installed. Datasheet says it should be around 2.5v. I can't trace pin 7 to anywhere on the board.
Searching over the web and Usenet I found others with this problem on intel advanced boards like the zappa/endeavor/atlantis/monaco which also use the NS PC87306 Super I/O. None of the Usenet posts mention a fix though. Something is eating/taking around 2.3V in my case
now i think thats is a hardware failure. Computer work perfect and is nice but i not like not perfect vintage pc. i will let go. tnks for the hint
Someone have the FIX???? tnks
