There has been so much talk about the much wanted 128 Mbit SIMMs for CPS3, especially to run games with Darksoft's SuperBIOS. As most of you know already that you have to have 2 x 64Mbit SIMMs and 4 x 128Mbit SIMMs to run Street Fighter III Third Strike (I'm not exactly sure but you need this amount of SIMMs to load ANY game from Darksoft's & Mitsurugi-w's CD. Please correct me if I'm wrong).
As you know finding 128Mbit SIMMs is hard and even if you find them they are most probably too expensive. There is already another option that Darksoft and Mitsurugi-w have provided to the community; freshly designed and build new 128Mbit SIMMs with very fare pricing.
What I'm trying to show you that (some of you may already know) you can convert 32Mbit SIMMs into a 128Mbit SIMM with some effort if you already have the skills and tools to surface mount soldering. I must say that, although this is an option, I wouldn't suggest you to go and buy 32Mb SIMMs on ebay to do this because it may not justify the cost. Still, Darksoft's new SIMMs are really cheap considering the effort and material to do this convertion.
So why am I bothered to show you how to do this? Well, you may already have some 32Mbit SIMMs laying around uselessly and you may already have some spare 64Mbit SIMMs or some Fujitsu flash chips. If that is the case, this is how to utilize them for a greater purpose
Enough talk, lets begin...
First, you need 2 x 32Mbit SIMMs; One target, one donor. You actually need only one PCB as a target (it is exactly the same PCB used for the 128Mbit SIMMs also) but finding "reverse pinout" fujitsu chips is next to impossible, so we are going to salvage the reverse pinout flash ICs which are "already" on the other 32Mbit SIMM.
The reverse pinout flash IC on the original Capcom 32Mbit SIMMs is MBM29F016-90PFTR
Which means; 016 => 16Mbit, 90ns speed and PFT"R" => R for Reverse pinout
Here are what you'll need:
As you can see I already have 4 x 16Mbit Fujitsu flash ICs. They are MBM29F016-90PFTN ("N" for normal pinout). These can also be salvaged from a single original capcom 64Mbit SIMM. But these normal pinout chips can be more easily found on internet. Infact I bought these from buyicnow.com and they are infact MBM29F016A-90PFTN (I do not know what "A" means but it seems it is only a revision compatible with the ones without the "A").
So as a summary; You need a PCB, 4 x 16Mbit Fujitsu flash chips with reverse pinout and 4 x 16Mbit Fujitsu flash chips with normal pinout.
And a remark; No, other brand flash ICs do not work, I already tried intel and AMD without success...
As you know finding 128Mbit SIMMs is hard and even if you find them they are most probably too expensive. There is already another option that Darksoft and Mitsurugi-w have provided to the community; freshly designed and build new 128Mbit SIMMs with very fare pricing.
What I'm trying to show you that (some of you may already know) you can convert 32Mbit SIMMs into a 128Mbit SIMM with some effort if you already have the skills and tools to surface mount soldering. I must say that, although this is an option, I wouldn't suggest you to go and buy 32Mb SIMMs on ebay to do this because it may not justify the cost. Still, Darksoft's new SIMMs are really cheap considering the effort and material to do this convertion.
So why am I bothered to show you how to do this? Well, you may already have some 32Mbit SIMMs laying around uselessly and you may already have some spare 64Mbit SIMMs or some Fujitsu flash chips. If that is the case, this is how to utilize them for a greater purpose
Enough talk, lets begin...
First, you need 2 x 32Mbit SIMMs; One target, one donor. You actually need only one PCB as a target (it is exactly the same PCB used for the 128Mbit SIMMs also) but finding "reverse pinout" fujitsu chips is next to impossible, so we are going to salvage the reverse pinout flash ICs which are "already" on the other 32Mbit SIMM.
The reverse pinout flash IC on the original Capcom 32Mbit SIMMs is MBM29F016-90PFTR
Which means; 016 => 16Mbit, 90ns speed and PFT"R" => R for Reverse pinout
Here are what you'll need:
As you can see I already have 4 x 16Mbit Fujitsu flash ICs. They are MBM29F016-90PFTN ("N" for normal pinout). These can also be salvaged from a single original capcom 64Mbit SIMM. But these normal pinout chips can be more easily found on internet. Infact I bought these from buyicnow.com and they are infact MBM29F016A-90PFTN (I do not know what "A" means but it seems it is only a revision compatible with the ones without the "A").
So as a summary; You need a PCB, 4 x 16Mbit Fujitsu flash chips with reverse pinout and 4 x 16Mbit Fujitsu flash chips with normal pinout.
And a remark; No, other brand flash ICs do not work, I already tried intel and AMD without success...
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