Lyokian159
Member
USA here, though I am not opposed to paying for international shipping expenses if it comes down to it.Where are you based? I have a de extra boards, but I’m in Sweden
USA here, though I am not opposed to paying for international shipping expenses if it comes down to it.Where are you based? I have a de extra boards, but I’m in Sweden
Sent you a PMUSA here, though I am not opposed to paying for international shipping expenses if it comes down to it.
And as soon as JLCPCB gets their stock up, we're doing a group buy for Northern Europe as well: https://tinkerdifferent.com/threads/nordics-north-europe-se-30-reloaded-group-buy.2339/There is a group buy for a semi prepopulated board being organized on TinkerDifferent https://tinkerdifferent.com/threads/se-30-reloaded-group-buy.2337/
I think it’s been talked about. It’s an interesting idea especially with the difficulty in getting hold of 30-pin SIMM sockets. It would leave you with space on the motherboard to integrate something else…I think I saw somewhere that you can take apart a 72-pin memory stick to build four 30-pin sticks. If they are equivalent, wouldn't it be pretty simple to print these new boards with two 72-pin sockets instead of eight 30-pin sockets? Would that be an improvement, or does that ruin the exercise somehow?
I actually did that when I upgraded my se/30 to have 128mb of ram, for me it was way cheaper at the time to buy 72pin ram with the correct size memory IC's and make my own 16mb simms.I think I saw somewhere that you can take apart a 72-pin memory stick to build four 30-pin sticks. If they are equivalent, wouldn't it be pretty simple to print these new boards with two 72-pin sockets instead of eight 30-pin sockets? Would that be an improvement, or does that ruin the exercise somehow?
PE connectors seems to have:I Feel like I may be missing something obvious but I cannot find if anyone has posted a good source of 30 pin SIMM sockets, and for the 64 pin ROM socket. My donor board has some corrosion issues and would prefer to replace if possible.
Thanks much!
if you hunt around you can still find 30pim sockets from time to time, but finding 64pin rom sockets its probably not even possible these days, last time i got some of those was around 4 years ago and while i bought about 5 of them, i kind of regret i didnt but like 10-20 of them.I Feel like I may be missing something obvious but I cannot find if anyone has posted a good source of 30 pin SIMM sockets, and for the 64 pin ROM socket. My donor board has some corrosion issues and would prefer to replace if possible.
Thanks much!
I Have toned out the connections from bank A SIMMs to the Resistor Packs and then from the RPs to the UI/UJ2,3,4 and that is all good. So address muxes seem fine. Everything on this board is new components from mouser whenever possible.Well I am nearing the end of the build!
But I am getting the lovely horizontal lines no matter what RAM or ROM combination I use.
Any thoughts on the first component to suspect?
View attachment 53082View attachment 53083
Do you get chimes of death?I Have toned out the connections from bank A SIMMs to the Resistor Packs and then from the RPs to the UI/UJ2,3,4 and that is all good. So address muxes seem fine. Everything on this board is new components from mouser whenever possible.
No combination of RAM and ROM (inc rominator) changes the display
No death chimes at the moment. No sounds happening at all.Do you get chimes of death?
I have also checked the lines through RP1 and UD1, those tone out good.No death chimes at the moment. No sounds happening at all.
Nice to see another fully socketed board!Well I am nearing the end of the build!
But I am getting the lovely horizontal lines no matter what RAM or ROM combination I use.
Any thoughts on the first component to suspect?
View attachment 53082View attachment 53083
Sadly I am scopeless. I may have to finally bite the bullet and order a scope.Nice to see another fully socketed board!
Did you already check the clock and reset signals?
Sadly I am scopeless. I may have to finally bite the bullet and order a scope.
I assume you have tested with a ROM? Since on your card there are actually no romsWell I am nearing the end of the build!
But I am getting the lovely horizontal lines no matter what RAM or ROM combination I use.
Any thoughts on the first component to suspect?
View attachment 53082View attachment 53083
Yes. Both a stock ROM and a Rominator III assume you have tested with a ROM? Since on your card there are actually no roms