look at this card
It's a Hualog Microelectronics HM86314Q (S)VGA card, long time ago somebody gave me it as a gift. It has installed 256KB of DRAM, I know it probably doesn't worth but I want to have 512KB on it. Notice that it has 4 memory chips S514256FP and one HM8694P-304. I could find any datasheet but I suppose those DRAM chips are 256x4 FPM RAM. So, now the question: I cannot understand how memory is arranged on this card, 4 x 256x4 DRAMs = 512KB isn't it? What's wrong with this supposition? Another question, Which DRAM chips I need to have 512KB?
seems that it actually is an 8-bit card since I cannot see that those gold fingers are actually connected to nothing
I have benchmarked it in 8 and 16 bit slot and cannot see any difference in performance which confirms the above observation. In fact it's one of the slowest VGA card I have seen, much in the league of an OAK oti37C, but it seems to be decently compatible and it works for sure on a 8-bit slot.
It's a Hualog Microelectronics HM86314Q (S)VGA card, long time ago somebody gave me it as a gift. It has installed 256KB of DRAM, I know it probably doesn't worth but I want to have 512KB on it. Notice that it has 4 memory chips S514256FP and one HM8694P-304. I could find any datasheet but I suppose those DRAM chips are 256x4 FPM RAM. So, now the question: I cannot understand how memory is arranged on this card, 4 x 256x4 DRAMs = 512KB isn't it? What's wrong with this supposition? Another question, Which DRAM chips I need to have 512KB?
seems that it actually is an 8-bit card since I cannot see that those gold fingers are actually connected to nothing
I have benchmarked it in 8 and 16 bit slot and cannot see any difference in performance which confirms the above observation. In fact it's one of the slowest VGA card I have seen, much in the league of an OAK oti37C, but it seems to be decently compatible and it works for sure on a 8-bit slot.