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    Germany - Bavaria

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  1. I seem to remember I read somewhere that he doesn't has any of that kind of information anymore. Also as @olePigeon already said... Send me a Tokamak and the GAL they put on the logicboard and I'll make schematics and GAL/ROM/FPGA dumps available (and build a few reproductions)
  2. It would become a sort of a Turbo601. It's highly likely not going to work, because the firmware for the ARM VLSI will be different. The Turbo601 essentially is a Turbo040 with all the PPC stuff thrown in. The same 030->040 bus translation that's on the Turbo040 happens on the Turbo601. They even re-used the same ASIC that can be found on the Turbo040: Next translation happens from 040 bus to 601 bus using the same ARM/VLSI chip found on all other PPC accelerators for 040 Macs: You'll have that ARM chip on your LC475 up
  3. Any idea how you are going about the I/O shield/frame/mounting tab metal piece? Desoldering the old one is possible but it's not really an easy task (+ on most of my battery-disaster boards they are heavily rusted) Did you try if the board holds in place without the mounting tabs holding it?
  4. But at $4 a pop for those QFP chips? Also the bad packaging job earned them nothing, because I got a full refund for those. I really don't see through their business model.
  5. Not going to speculate over "why" reworking those chips is a thing... But see for yourself: This is exactly how I got it from the seller linked above. The markings on the chips do seem to be what was on there originally. On some it could be washed off with acetone, on some it stayed on. On one chip you can see signs of either a round heatsink or leftovers from grinding off the old markings.
  6. I did exactly that on one of my IIci boards. Works just fine at 25MHz with a33MHz chip in place. Those chips you linked are probably fake anyways, I ordered a few of them not long ago and the silkscreen on most of them is sketchy (+they all arrived with horribly bend legs) They do work just fine though, once you went through the trouble of straightening the legs and soldering it down.
  7. You sir are the hero of the day. I was running this on my testbench setup with an extension cable and believe it or not one of the two 5V pins slipped out of its seat in the connector housing and wasn’t making good contact. After crimping on a new contact everything is now running well. Voltage on the 5V line still is a little bit on the low side with 4.7V, but at least it’s staying there no matter if there’s no card installed at all or if I am running 2 PDS cards + accelerator. It also seems that while the stock PSU would not be able to run the Turbo040 stably at anything below
  8. I just installed a SSP-250SUB in one of my SE/30s and I am not getting good results at all. The 5V line is at around 4.8V with just the logicboard and some RAM and no PDS cards. It drops to 4.6V if I add a network card and down to 4.2V (resulting in a non-booting Mac) if I add an accelerator on top of that. Exchanged the power supply for another unit just to make sure it is not faulty - same results. I am running a spinning hard drive so there is at least some added load on the 12V rail. I can not recommend doing this unless some other modification is done to get a s
  9. Looks good, I have seen several similar modules. Downside is they all need 3.3V inputs, so I’ll have to include a regulator on the adapter/breakout board for that. Nothing too fancy though I did like the fact that the Vonets just hooks up to 12V and has its own regulator onboard.
  10. I won’t be making any of these because of the problems with the mPCIe connector described earlier in this thread. I was looking into other DD-WRT based single board access points/routers and if one of those can be used for this but did not find anything that fits the use case. So far I was only selling the boards as a wired only option included with my MacCon clone/accelerator adapter combo cards. Also my supply of transceiver ICs is slowly getting used up so there won’t be too many more of those coming.
  11. I did, they're working on it. That said, everything else I got with that order was perfect.
  12. The ones I got do have a FPU, so they are some kind of full 040. They also don’t seem to run as hot as most of the other chips I have around but they’re far from being what I would consider cold running. They are rock solid at 40MHz though and at least one of them also seems to take 50MHz just fine as well. Still trying to see if they’re going to refund me because there’s obviously some faking going on here even if the prices weren’t actually too bad even for what I got considering they run fine at 40MHz.
  13. Well... the "L88M"s I got from utsource were reprinted. The mask they printed on there was made up and a 2012 datecode also doesn't make too much sense:
  14. First make sure the card is even detected by the Mac at all. Use TattleTech or SlotInfo from Newertech Gauge Series for that. Card should show up regardless of any jumper settings.
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