I had to go to my 2000 copy of "Sad Macs BOMBS and Other Disasters" to find the info. An Apple Service Provider would definitely not be of help. A mac user group could be a way to find someone with experience with the older stuff. There is a forum/group on LowEndMac that might be worthwhile browsing.
From the Sad Macs book.
1 beep = no RAM installed
2 beeps = incompatible RAM
3 beeps = no RAM passed memory testing
4 beeps = no good boot images in the boot ROM
5 beeps = Bbad ROM boot block or processor not usable.
1,2,and 3 indicate replacing RAM may fix problem. Otherwise you are advised to take it to an Apple service provider
Pulled the RAM expansion module and still get the (mostly) two beeps. This seems to indicate a motherboard RAM issue. Is there a key combo to bypass the startup RAM check to see if there are other problems?
My BF doesn't appreciate that I seldom get rid of old computer software and docs. I'd show her this thread but it wouldn't make a bit of difference!
Found (from this forum back two years ago) the proper nvram reset commands for the 3400c (and other 60x-based machines as well?)
The computer gave oks to the first two lines and restarted on the third. This didn't help either.