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uigiflip wrote:I know some people are now testing 64MB sdram, is it true there could be possibility of plugging in a second 64MB sdram on unused pins for more memory for neogeo core (and possibly others core maybe minimig)?
THaase wrote:No - why do you think so?
At the moment Sorgelig is thinking about exchanging the 256MBit SDRam chip with a 512MBit one with the same footprint afaik.
MiSTer now supports 128MB dual SDRAM and Sorge has been heavily editing @furrtek
's Neo Geo core. Although this doesn't necessarily mean that 128MB will be required--options are still being explored.
Sorgelig wrote:Usually below 100MHz even badly soldered SDRAM works fine.
Looks like some anomaly..
Sorgelig wrote:Usually below 100MHz even badly soldered SDRAM works fine.
Looks like some anomaly..
sawf01 wrote:Hi guys,
I'd like to add to this if I may. I've run the memtest on my latest batch of xs 1.1 memory boards with the alliance chip and I see the same behaviour. After 5 minutes it shows 766 in red. It seems to run fine for a while and then adds a load of errors and then run fine again in a cycle.
I too have made large amounts of these boards that pass 167 every time for several hours. I have not however noticed any instabilities in cores though.
Hope this helps.
merlin4782 wrote:sawf01 wrote:Hi guys,
I'd like to add to this if I may. I've run the memtest on my latest batch of xs 1.1 memory boards with the alliance chip and I see the same behaviour. After 5 minutes it shows 766 in red. It seems to run fine for a while and then adds a load of errors and then run fine again in a cycle.
I too have made large amounts of these boards that pass 167 every time for several hours. I have not however noticed any instabilities in cores though.
Hope this helps.
sawf01
Thank you for your input. I have tested boards that sometimes pass all speeds but fail at 90 Mhz after only 5-10 minutes, then I tested the same board again later and it only shows errors after 100 minutes. This same board also runs NES and SNES cores without problems. However, Ashenshards is having issues in game also despite his board passing without errors at all speeds except 90 Mhz.
Ashenshards wrote:I think the 90 MHz is unrelated. I'm on my third ram board and still having issues with SNES core. Yoshi island has a lot of glitches. Unless no one is playing enough to test there must be something wrong with my de 10 nano. I had to play through the whole 1st world quit and come back later before I got these glitches.
https://youtu.be/GSGlUrRPSNo
If I reboot the Mister 10 times the game will load without glitches, but if I run the game glitchy it erases the save.
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