I received a couple of requests recently about the Model 2011’s RTC battery and how to replace it.
So I quickly arranged a mini how-to to explain the process.
How to replace the CMOS battery
Hope this helps.
I received a couple of requests recently about the Model 2011’s RTC battery and how to replace it.
So I quickly arranged a mini how-to to explain the process.
How to replace the CMOS battery
Hope this helps.
A couple of great additions for the Downloads section: the ROM BIOS and the starter diskette for the IBM PS/1 386SX Model 2123.
PS1_2123_87F4794_ROM.zip – ROM BIOS, P/N 87F4794, dated 1992
PS1_2123STRT.zip – Bootable Starter Diskette with diagnostics software.
Note: the file 2123STRT.DSK inside the starter diskette archive is a stardard floppy image so you can use it with your preferred image transfer program.
Thanks Leo for the donation!
Another donation: the preloaded software of the PS/1 2155-78C, US version.
The PS/1 2155-78C was a multimedia machine released in the US market during the spring of 1994 and equipped with:
PS1_2155-78C_Spring94_HDD_Recovery_US.zip – HDD software as a recovery set (floppy images)
PS1_2155-78C_Spring94_HDD_Files_US.zip – HDD software as simple files
Software included:
Thanks Austin!
Thanks to a donation I can share with you all the US version of the preloaded software for the PS/1 model 2123 (Spring 1992)
PS1_2123_Spring92_HDD_Files_US.zip
PS1_2123_Spring92_HDD_Recovery_US.zip (same software but as recovery floppy images.)
Software included:
Thanks Ryan! (again)
Working on the 2121 support in IBMulator, I started looking for any kind of information about the video interface.
According to IBM Corp., the PS/1 2121 has got a standard VGA with 256KB of memory, very much like the 2011’s one.
Actually, the chip used is the IBM 84F7985 / TI CF62011BPC. Unfortunately there’s no datasheet and information is very scarce (if you have any technical info please let me know!)
I’ve deemed the source code stable enough to tag and release a new version with:
The configuration file (ibmulator.ini) has changed so if you are upgrading delete/rename the old one to recreate.