Never pull A ROM with the battery in.....

NeXT Computer, Inc. -> NeXT Black Hardware

Title: Never pull A ROM with the battery in.....
Post by: barcher174 on February 21, 2015, 06:26:37 PM
Just a friendly reminder to never pull a rom chip until you've removed the battery. I forgot and just had a bad time. On the plus side I finally had a use for my programmer.

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Brian
Title: Never pull A ROM with the battery in.....
Post by: pentium on February 23, 2015, 01:22:01 AM
You mean the EPROM? What? :?:
EPROMs are fairly rugged outside of a programmer when the quartz window is capped.
Title: Never pull A ROM with the battery in.....
Post by: barcher174 on February 23, 2015, 01:25:08 AM
Yes, I fried the chip. Luckily I had a blank replacement on hand.
Title: Never pull A ROM with the battery in.....
Post by: Rob Blessin Black Hole on February 23, 2015, 02:23:34 PM
Quote from: "barcher174"Yes, I fried the chip. Luckily I had a blank replacement on hand.
Hello Brian: Thanks, it may explain why I thought some motherboards had issues when it was a fried rom chip pulled when the battery was in. Best Regards Rob
Title: Never pull A ROM with the battery in.....
Post by: pentium on February 24, 2015, 10:43:35 PM
It just doesn't make sense to me. It's an EPROM. It shouldn't even be associated with the battery circuit because it's non-volatile memory.
Title: Never pull A ROM with the battery in.....
Post by: barcher174 on February 25, 2015, 01:09:19 AM
I don't have any concrete evidence other than the a fried ROM. I'm just going by the conventional wisdom that you should disconnect power sources from related hardware before working.

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