my another nice repair of Viper 520
http://chain.3dgrafika.cz/wrk/alcone/_viper520_oprava/
Card was dead if you switch on (jumper) fast ram, so ive replaced dram chips and it works, hell yeaah!
Hyunday chips are desoldered from 72pin simm -.) (due to unable to find same part number anywhere else)
man, im beginning to like that hotair rework