~ overflow ~

Keyboard ports not working, BIOS not working and yet working!

by z3n on Jun.27, 2009, under Tips & Hints

Problem:

Since i’m broke, i need to get this type of jobs in order to make some dough, it’s not that i don’t like it, but it’s good to have a challenge ahead.

So i got 2 oldĀ  machines to reinstall the OS, might look a simple task, but it wasn’t. Both machines didn’t regonize the keyboard, one of them, required an adapter from the ps/2 to the big ps/2 which i don’t know the right name.

So i was stuck on the POST, “Keyboard not found press any key to continue” — hahahah — also one of the machines got a battery malfuncion, which means that once it’s unplugged it’s BIOS will reset to factory defaults.

Solution:

First i tried and old `big ps/2` keyboard i have here, i though that my keywboard might be not working right. FAIL.

Then i tried an alternate ps/2 hook i had. FAIL.

On one of the machines i was able to bypass the POST, however, the machine’s devices weren’t configured, so i couldn’t boot. Although the keyboard was working, misteriously, NOT on the POST.

So i decided to do a hard reset on the BIOS, for the first machine it instantly worked, i got the keyboard with the adaptor working just fine, so i could boot the system up and reinstall the OS. Now for the second one, i couldn’t get into BIOS Setup, keyboard wasn’t being detected at all. half FAIL.

I have this ps/2 -> usb thingy, it allows me to plug a ps/2 mouse and a ps/2 keyboard and converts it to a usb port. So i tried this and it, finally worked. In this case i had to enable legacy usb keyboard support on BIOS, in order to have it working after POST.

I also had a spare motherboard battery (from an 386 board) which worked just great on this , also crappy, old computer, so no more BIOS resets.

Hope it lasts for more than a month so i don’t have to redo it for free! :)

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