Compaq SLT/286 4MiB Memory

[schenkzoola]

Hello,

I'm looking for some high resolution pictures of the 4MiB memory modules for the SLT/286 for a reverse engineering project.

I've already got a 1MiB module RE'd, but there are three pins on the edge connector that are not connected. I'd like to see which ones are connected on the larger module, as well as learn what chips were used, etc...

If you have one you can take good pictures of, or better yet loan/sell me, I'd greatly appreciate it!

Thanks!

 

[schenkzoola]

Just so you know I'm serious, here's what I did with the 1MiB module:

 

[schenkzoola]

An update:

I didn't get any replies, so I forged ahead! Here's what I came up with. It's at the fab now!

 

[Jelieber]

That's incredible! I just bought a slt/286 (should be in the mail soon) and would love to get it fully decked out! Unfortunately it didn't come with the battery or power adapter so the pinouts you provided will prove very helpful. Did you end up trying to make a new power supply or replacement battery? And how'd the ram modules turn out? I'd love to make some since they're virtually impossible to find!

 

[Patrick1974]

An update:

I didn't get any replies, so I forged ahead! Here's what I came up with. It's at the fab now!
View attachment 1039792

Hi, are you gone sell these ram modules?

I have one SLT 286 and one SLT 386 and i'm looking for ram upgrades.
On the 286 i have one 1MB module and on the 386 i have one 2MB module.

 

[DinohScene]

An update:

I didn't get any replies, so I forged ahead! Here's what I came up with. It's at the fab now!
View attachment 1039792

Nice and clean design!

Will these be on your github as gerber files or do you plan on selling them fully assembled?
From what I gather the SLT 286 and 386 share the same type of RAM.
I recently gotten a SLT 386s/20 and decided to register on this forum after stumbling upon a thread whilst I was searching if anyone had already made an attempt at reverse engineering the RAM modules.
Thank you so much for the hard work you've put in!

 

[compaqportableplus]

From what I gather the SLT 286 and 386 share the same type of RAM.

They actually do not! They look similar, but the slot connector on the 386 modules is more towards the center instead of off to the side like the 286 modules.

It would be awesome if someone started selling complete repro 4MB modules for the 286 and/or 386s/20. I'd definitely buy some!

 

[CedsRepairs]

Count me in for a 386 SLT repro module as well (altough this is 3 years without updates...)

 

[Grizzly Adam]

I would be down for some 286 ram. if it is affordable I have a single 1mb chip right now.