Hi there.

I did get a 486 PC not so long ago and I just noticed an issue with the BUS clock, not sure if it's normal or if I have to look at something to fix it.
The CPU is a TI486DX2-66. Normally, in IDLE, the bus stay at ~33.2Mhz. But I did notice that during light load (Like playing a midi file on Windows NT), that the clock will go down to something between 32.18 and 32.5. Pressing pause on the music player will raise the clock back to ~33.2. Just moving a window do the same thing too.

I'm aware that the clock will drift a little normally, but I did not expect it to move with the load (and that much, up to 3% drift)

There is also clock(time) drift. I did set it about two week ago and it's now about 1h30 in advance.

Motherboard is Acer A1GX https://theretroweb.com/motherboards/s/acer-a1gx .

Any idea?