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Marchie

Posted Wed Oct 04, 2023 2:12 pm

Hey follks,

I’m installing an mkl 68k RAM/IDE board and to get the IDE working I need to connect to the OVR and INT/2 lines.

These are both on the expansion slot but I don’t want to solder wires to the motherboard unless I really have to.

INT/2 I can pick up from Paula, but OVR is proving hard to find, and schematics for the 1000 are pretty difficult to find/follow as well.

Does anyone know where I can find OVR on the A1000 motherboard? (On a chip I can clip to that is NOT covered by the Rejuvenator)?

Thanks in advance to anyone who can help!

User avatar
A10001986
1986

Posted Wed Oct 11, 2023 6:43 am

Apparently on pin 17 of the expansion connector.

User avatar
kippy

Posted Wed Nov 22, 2023 6:47 pm

The solder hole next to the CPU, the DPALEN Pin #7 on the actual Daughterboard (either the underside or topside), or pin #7 on the mezzanine riser at U6P. You could also use a clip line on the riser as well.

Hope this helps.
-Cliff
Attachments
Diagram_4_J1=OVR-J2=XRDY.png
RangerRam-OVR-line.jpg
PostSet_Closest_To_DPALEN_Far_Side_From_CPU_Pin_Seven_From_Front.jpg
OVR-via-near-CPU.jpeg





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