@amesie2
Just so you know it: Your A3640 seems to be the much sought after v3.2 of the card.
The v3.2 has its suffix on the U209 is *-03 and the silk screen says v3.1
Details
here
V3.1
This card works fine in general however it does have a bug related to Zorro II DMA that causes some cards like the GVP Phonepak to stop working, when installed in an A3000. The PAL or GAL chip located at U209 should be -02.
V3.2
No known problems. The PAL or GAL chip located at U209 should be -03.
