Recent content by jimjamyahauk

Hi, Has anyone got a PSU for a Quicksilver G4 and willing to open it up to see the values of 2 large capacitors in it? I've started recapping mine and first removed 2 large ones a while ago that I've misplaced and need to find the V and uF values on.

Hello! Haven't yet got round to testing out the ROMs. However on a side note has anyone sold a PowerMac 9700 to a chap called Johnathan Goldman?

So far this has been so much smoother than when Bruce from DigiBarn shipped over the ROMs https://www.applefritter.com/comment/57981#comment-57981

Yay!!!!! Amazing! 🎉

@trag any possiblity you could whip up some TriPEX PLCC ROMs (I have the equipment but it's buried after a house move) so I could also test these with the ROM DIMMs and see any differences too? Ship to @mg.man so he could bring along with the rest?

That would be very kind and an amazing contribution. Very happy for this to occur. Thank you so much... DM you my address. @mg.man

Amazing! This is so cool that it's working. Thanks so much to the skills of @trag in fabricating and making these. I can't believe that over a decade since it was pointed out that the DigiBarn pex had a ROM DIMM, wrangling to borrow it from Bruce, and then some technical experimentation to get...

As a slight tangential aside - https://www.downtowndougbrown.com/programmable-mac-rom-simms/ and http://www.bigmessowires.com/mac-rom-inator-ii/ Wonder if something like this is adaptable for later ROM SIMMs....

Apols if I've missed this - did we have a full dump of your ROM at somepoint @haplain (assume if an-OS dump then will be combined SIMM and PLCC chip dump - but this might not be the case). Interested to know as the PLCCs are soldered what the final version of the code is on them (unless there...

PS> Does anyone have any settings or tips to view the rest of the ROM info - otherwise assume only text strings are human-readable - the rest is code?

Did some more ROM digging and have found some "key dates". These are based on when Open Transport driver was saved/encoded. Assuming these are correct, then the TriPex and Digibarn ROMs are only a few days apart. I also did a DIFF comparison using HexFiend between these, and also the TriPex...

So I can confirm that the PLLC chips on mine are also the same numbers - hence I think the file names I'd used (unless these are the DigiBarn copies) of: PLLC CHIPS 341S0396EVEN.bin 341S0395ODD.bin

Ah cool, great to know both 3mb and 4mb dumps of the Digibarn ones got decoded originally. Obviously, must have been done for you to be able to make the new ones (hadn't thought/realised that 😂). Shipping to the UK might be interesting. Brexit has mucked up customs times on top of COVID. Only...

Right, have now deinterleaved the 4MB Rom-Grabber dump I did of the Digi Barn and here are the results: 3bc332feed391d889b67ea950905bbc1 DigiBarn-PEX-Rom-grabber_deinterleaved_U1.bin 975f90800d9177d59b5eca4f4deb23bd DigiBarn-PEX-Rom-grabber_deinterleaved_U2.bin...

Also, if useful, here are the 3 different ROM dumps (think done 3 times each time to check) done within the OS which all came out at 3MB - EXCEPT Rom-Grabber which was the 4MB one, arranged by utility used: Save ROM Rom-grabber GetRom