Question Bios keyboard issue

Jan 31, 2022
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I recently discovered an old desktop pc I built 20 ish years ago, it has sat under a desk in my house the last 14 years and was switched on about 8 years ago last time and worked ok.

I decided seeing as its 20 years old and running xp it might make a good old school gaming machine but I have run into an issue. When I switch it on it gets into the bio and is asking me to save settings but when I press keys on my keyboard nothing happens. I have tried multiple ps2 keyboard and the issue is the same.

I also pulled the machine down and cleaned it out as there was a lot of dust in there and put it all back together, I also replaced the onboard battery as the old one was very dead hence it going into bios.

-it has an Asus av7333 motherboard in it and I have never had an issue with it before now, I have also removed all unecessary hardware so its trying to boot with the minimum stuff attached (1 memory module, 1 hd, graphics card) I had 3 memory modules and have tried all three individually to see if that made a difference when booting but again its the same issue.

When I power up and it gets to the bios screen, I know the keyboard is getting power as hitting num lock ect brings up the light on the keyboard so power is getting to the keyboard.

I really am not sure what the issue could be, I even tried the user manual way of resetting the bios just in case that would make a difference... it did not
 

Karadjgne

Titan
Ambassador
Was the board perfectly flat? I've seen boards warp over the years, especially the older, cheaper boards that didn't use many layers. Newer boards are considerably more robust, it's like the difference between 3 layer 1/4 plywood and 9 layer 23/32 plywood.

Also was there any discoloration on the board? Any possibility it got damp at any time from condensation etc? Any warpage or discoloration/swelling from water can pop solder joints on either side. Or crack a trace.
 
Jan 31, 2022
4
1
15
Was the board perfectly flat? I've seen boards warp over the years, especially the older, cheaper boards that didn't use many layers. Newer boards are considerably more robust, it's like the difference between 3 layer 1/4 plywood and 9 layer 23/32 plywood.

Also was there any discoloration on the board? Any possibility it got damp at any time from condensation etc? Any warpage or discoloration/swelling from water can pop solder joints on either side. Or crack a trace.
no none, when I cleaned the board I checked it all, still looks fine (not warped), no discolouration and no damage to any lines. It actually looks just as good as when it first went into the case