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FIXED !! Before I broke out the microscope I decided to do a basic continuity check of the address and data lines using the schematic cheat sheet. Amazingly the second trace I checked A(1) was open at Video Mux UD8 pin 12. Resoldered the via and board is now working fine. Thanks everyone for...

Thanks for the responses. I’ll breakout the microscope and take a look this weekend. Manuel

Hello, I have a SE/30 that has recently developed a display problem. Before I go into full diagnostic and repair mode I thought I’d post a picture here and see if anyone can spot any obvious fault and fix. This logic board was recapped a few years ago and has been working just fine. When...

Well I think I found what’s causing the delay. If I turn off AppleTalk then 7.1 does a cold boot in just 47 seconds

One additional thing. If I just do a restart it completes in just 28 seconds.

Even though it’s slow to boot 7.1 once booted it works great and passes all Snooper test.

My total boot time with 6.08 is only 35 seconds

No other scsi devices installed. Even tried with a ZuluSCSI and got the same results. I just did a complete new install of 7.1 from floppy but got the same results.

Here is my timeline with the accelerator installed. On power up I immediately get the single chime At 20 seconds I get the Welcome to Macintosh window From 21 seconds to 35 seconds I get drive activity while still on the Welcome to Macintosh window. From 35 seconds to 80 seconds while still...

I just added a Performer 68030 accelerator from MacEffects to my SE SuperDrive with 4mb memory and a BlueSCSI V2 running a bare System 7.1. It takes about 95 seconds to boot up with the required Performer control panel and extension. Before installing the accelerator it would boot up a bare...