T2? bios update

[DRobinson]

So, I have a T20 with an older bios. But, I may not have a T20. The motherboard that came with it got a bad flash, so was replaced. Second MB got BOD. I am on my 3rd motherboard for this machine. The bios listed appears to be a T22 bios.

Code: Select all

*-firmware
          description: BIOS
          vendor: IBM
          physical id: 0
          version: 16ET29WW (1.09 )
          date: 02/28/2002
          size: 144KiB
          capacity: 448KiB

Since I purchased this motherboard from e-bay, it could well be out of a T22. Is there any difference between T20 and T22 motherboards? I do not think so, but there are different bios listings on Lenovo's page for them? Should I upgrade this with the T22 version? I will probably use a dos floppy to run the flash program.

Thank you.

[rkawakami]

According to the T2x Hardware Maintenance Manual, there are different motherboards for T20, T21 and T22 systems, with two different FRUs for each (i.e., 6 total). If your "new" board has a 16ETnnWW BIOS version, then you are correct in saying it's a T22.