JDW
Well-known member
RAM sockets with METAL tabs, by chance?I haven't replaced the RAM sockets yet, but I did recently buy some from an eBay seller that come in a lot of 10 pcs.
RAM sockets with METAL tabs, by chance?I haven't replaced the RAM sockets yet, but I did recently buy some from an eBay seller that come in a lot of 10 pcs.
I have angled metal tabbed 30pin 2 row ones. I wonder if it would be possible to use those. It is the same as used on the regular SE. I'm thinking if anything it could be too tight on one side.Thank you for the EBAY link. They look very nice. I love the metal tabs. Sadly, they are not the type for the SE/30 though:
EBAY RAM SIMM Sockets:
View attachment 37451
SE/30 RAM SIMM Sockets (spaced apart) as shown on my motherboard:
View attachment 37452
True, but it could be that Apple deliberately choose dual sockets to ensure the user wouldn't apply too much pressure and break the solder joins on the pins. With a single socket, all the force will be applied to its pins only. With the dual sockets, that force is spread across two socket's worth of pins.@JDW...I think single sockets would be a good, easier to find alternative. Another advantage is if you want to fix just one broken socket, then you could clip the supports in between the two sockets and leave the other one alone.
30 pin sockets either straight or angled available here: https://www.peconnectors.com/sockets-pga-cpu-and-memory/RAM sockets with METAL tabs, by chance?
I bought a bunch of dual vertical 30 pin sockets from, IIRC, Jameco when they were closing them out. They are also spaced too close together, but they are relatively easy to cut apart and use individually. I use a small bench vise to hold them and a cutting wheel on a dremel to do the cutting.@JDW Good catch. I didn't think they would have different pitches. The pitch for the SE/30 looks to be 0.4" (~10mm). It may be difficult to find an exact replacement, so I think single sockets would be a good, easier to find alternative. Another advantage is if you want to fix just one broken socket, then you could clip the supports in between the two sockets and leave the other one alone.
Thank you for the link!30 pin sockets either straight or angled available here: https://www.peconnectors.com/sockets-pga-cpu-and-memory/
We've been kicking the 72-pin SIMM and modern memory on the board notions around in Macintosh SE/30 Schematics (modernization effort)Since 72 pin SIMMs are more affordable in higher capacities and they're electrically compatible with the 30 pin SIMMs. Each group of four 30 pin SIMMs map to a single 72 pin one. So how about some board-to-board adapter with two angled 72pin SIMMs to replace the eight 30 pin ones? Or even better, some modern-ish soldered on 128MB memory module that solders into the holes left by the 30 pin SIMMs?
Thanks, that looks awesome! I've found things with heavy ground planes such as the SIMM slots on SE/30 are easier to desolder with a SMD rework station's hot air blower than desoldering gun.We've been kicking the 72-pin SIMM and modern memory on the board notions around in Macintosh SE/30 Schematics (modernization effort)
As a teaser, you can see height's no problem if using angled sockets. Working on a refit board for my SE/30's busted socket bank: 72-pin SIMM injection for updated SE/30 Schematic?
Now if I could just develop adequate desoldering skills. :