ohh yeah, 90MHz! well, technically, 99MHz (the oscillator is 66MHz instead of 60MHz).
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strangely enough, when i connect my other type 4 complex (a 486DX2-66), i get the same DMA timeout error, so this "fix" is definitely a hack and doesn't really fix the root cause. (i've already disconnected all the logic analyzer cables, so i'll have to look at it some other time.) @tubetime always felt weird that even on IBM hardware that supports it, that OS/2 cant do an ACPI soft shutdown. Even OS/2 4.52 @tubetime Half a warped OS... The whole IBM fumbling the Star Trek thing with OS/2 and the Warp name silliness was pretty amusing. |
it even boots OS/2 now. 😎