Recent content by Siliconinsider

Absolutely love the sleek form factor of your programmer, very nice work!

You do not need to replace the L2 cache. The 7400/7410 is a drop in replacement to the 750. The ZIF module is a standard IBM/Motorola product that is documented here: https://datasheets.su/DS/NXP/MPCPCMEC.pdf

This is the solution I used

A company did a 750L to 750GX interposer, it probably is not doable in less than 8 or even 10 layers considering how little room there is. My adapter is a clone of the powerlogix one, and it cannot be done with less than 8 layers. The thread is here...

I guess it depends, I have inquired the possibility before and it was not doable in the US. I have seen hotel policies that state that you cannot get postal deliveries. I suppose they don't want any responsibility for late/missed deliveries, or to become a package storage facility. I should not...

Guests can never receive personal packages at hotels, need to find a local friend for that.

Yes it will work. The thick chips can only go on the bottom as there's no room to put them on the top. Mixing package types is perfectly fine.

Ahaaa well that's neat! thanks for posting that.

Very cool! Well I have reversed the pinout of my 1MB SIMM and found that A9 is indeed connected, so this led me think that 4MB modules should be possible. I have made one, but I also messed up the connection of A9 in my routing. This does not matter for the 1MB module, but it's resulting in the...

A quick message for all those interested in the GWORLD RAM, I have a limited availability at $49 for a pair shipped. You can send me a DM to proceed!

GWORLD RAM was used in other cards, I have these two. I have made an adapter to put GWORLD RAM in my SIMMCHECK, but the 4MB SIMM is seen as a 1MB, so I have to check my design or what could cause the extra address line from being used. I think Apple created proprietary RAM at a time where 30-pin...

I am now making the GWORLD RAM. At the moment the 1MB SIMMs do work and I will have them available very soon. Looking at the documentation is is also possible to get 4MB versions, but as of now I can only get them to be recognised as 1MB so I may need more work.

It's not just eBay indeed, but all online platforms that have to comply. I think eBay is taking a no risk approach though, because you should not need to open a German VAT if you sell below €10k/year, but eBay does bar you if you don't provide them with the number regardless. As for the LUCID...

Howdy, there's a lot of red tape now enforced by eBay to sell in Germany, even if you're within the EU. First you need to register a VAT number in Germany, and then register to the LUCID Verpackungsgesetz and pay for a yearly fee based on the estimate of shipping material trash that will end up...

SE/30 RAM sockets have very bad plastic retention clip and SIMMs can sit loose in them. My SIMMs are slightly thinner (1.20mm) than normal (1.27mm) which does not help on making good contact. They do work in the SE/30.