First post, by Tiido
After being frustrated with insanely high shipping costs and import taxes involved when trying to buy such RAM sticks from USA (where most of these can be bought it seems) I decided to make my own, of course plenty more got made than I need and the rest are up for grabs. If there's demand I will make more, it takes between 1 and 2 weeks to get new PCBs and chips.
These are 4MByte 60ns 30pin SIMMs, *without parity*, You will need to configure your board not to need parity for normal operation.
All of these sticks are tested at 40MHz bus speed with tightest timings on an OPTi 82C895 based board using Memtest86+ 4.10 to one flawless pass. Chips used are not NOS but there shouldn't be any sort of problems. 50MHz operation is not tested because I lack a 5V 50MHz bus speed capable CPU to test stuff with, only boards where I can run 50MHz FSB (using a 3.3V CPU) lack 30pin SIMM slots...
More materials around the creation of these things :
PCB design : http://www.tmeeco.eu/HARDWARE/30pinSIMM.png
First hand soldered test sticks : http://www.tmeeco.eu/HARDWARE/30pinSIMM0.jpg
They work 😁 http://www.tmeeco.eu/HARDWARE/30pinSIMM1.jpg
Paste + pick & place : http://www.tmeeco.eu/HARDWARE/30pinSIMM2.jpg
Cooking process : http://www.tmeeco.eu/HARDWARE/30pinSIMM3.jpg
My server is being a bit flaky due to a hardware issue (i'll sort it out soon), if an image won't load try again in a minute.
Official sale happens over AmiBay : http://www.amibay.com/showthread.php?107626-N … 0ns-30pin-SIMMs.