Reviving an a3000

[amigagr]

i passed through these nightmares recently when i take a secondhand a3000. at boot time the screen opening in yellow and the hd was not starting to load the os, and when i was pressing here and there sometimes was booting normal for a while and so on. after a month of cleaning and change of some registers the amiga was stable for longer periods and then i observe that when i was pressing the mobo at left and back area near the vga output the image on the screen was leaving and coming and the colors was going mad. i remove all the ic's of chip memory, the first megabyte,8 ic's was secondhand with soldering on! i clean everything and seens then all the problems stoped and the amiga is more stable than i am
now i'm searching for a3000 stuff to upgrade her

[amigagr]

well the ic's was already there, i was not the one that put them there as extra ram. a friend of mine who has also an a3000 (MrZammler) told me that probebly someone took the 1mb chips of a dead a3000 and put them on this amiga in the extra connectors. he also told me that in older a3000's the chip ram was solderd on the mobo, so for this reason there was the soldering on the pins! i'll try to take a foto of the area around the chip ram and i'll send it to you, if this can help you in someway.