It's been 30ish years since I did that upgrade but I think that is normal, the 
boot process is checking the memory and more memory takes more time.

Clark Martin
KK6ISP
Yet another designated driver on the information super highway.

> On Feb 5, 2016, at 7:32 PM, BZ <bzo...@gmail.com> wrote:
> 
> I have recently acquired a Mac Plus which had 1MB of memory installed stock. 
> I got some old SIMMs and upgraded it to 4MB (and did some Larry Pina tuneup 
> while I was in there). All works great now, except...
> 
> Strangely, at boot time, it bongs and the display comes on, blank, and sits 
> there doing nothing for 30 seconds before the disk icon/happy Mac appears. I 
> can't find any other issues or symptoms, just a prolonged period of 
> nonactivity as soon as the power comes on. After that, it proceeds exactly as 
> you'd expect.
> 
> Is this related to the 4MB upgrade? I can't find any reference to this issue 
> in the Larry Pina books or anywhere else. Could it be somehow normal? Any 
> thoughts?

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