Email or username:

Password:

Forgot your password?
Ken's posts Post Back to profile
Top-level
root42

@kenshirriff the microcode ROM also seems in a different place.

21 August at 19:55 | Wall-to-wall | Open on chaos.social
4 comments
Ken Shirriff

@root42 The microcode is in the same place (accounting for the rotation of your photo). However, there are metal power wires over it in the DX2, so it isn't as visible.

21 August at 20:00 | Open on oldbytes.space
root42

@kenshirriff interesting. That area does look quite a bit different to me.

21 August at 20:17 | Open on chaos.social
Ken Shirriff

@root42 Here's a closeup of the 486 DX2 that makes the microcode ROM more visible. (The layout is identical to your photo.) The vertical yellow metal lines on top of the ROM make it harder to distinguish the ROM, especially with the coloring of your photo.
21 August at 20:23 | Open on oldbytes.space
root42

@kenshirriff yes once you know that those structures are metal lines the underlying ROM becomes obvious. Thanks.

21 August at 20:45 | Open on chaos.social
Go Up