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Misread? (I do that all the time.)😉 Still, appreciate all efforts/input here. Someone might come up with something we have not yet tried. Major stumbling block with this little adventure is that none of the downloaded and burned OS 9 installer discs will boot this MDD. And the optical drive...

If you read down through those specs for that serial number from EveryMac, there’s this: While his board is identical to one that I have, his Boot Rom version & firmware are also the same as mine. Only difference is that mine is a 1.25 DP - whereas his is an SP. AND yes, have also tried...

From 512pixels.net... https://512pixels.net/2016/11/lazarus-mac-mdd-g4/ “It came in two CPU configurations, single or dual 1.25 GHz; with 256 MB of DDR RAM and a 12X Combo Drive. Hard disk capacity started at 80 GBs; with Mac OS X 10.2 Jaguar preinstalled. But what made the Power Macintosh G4...

And no - it is not an MDD FW800 model. (Nor does it have a FW800 mobo.) Have tried various “solutions” with this machine located inside the Russian Federation. And with current international sanctions in place, can’t send “things” (discs, drives, video cards etc.) to the machine’s owner. The...

Well, there is news. With great help from E.M. and C.A @OWC… the SW3 switch (under the heatsink) sets the core voltage of the CPU and is not to be set using the same switch settings as those provided in the chart (from the manual - like SW1 and SW2) for the dual processor version. Okay for SW1...

Hey Patatas, I think that the two sets of dip switches referred to in the instructions (and from that chart of switch settings), refers to the SW1 and SW2 switches on the dual processor models. There is no specific reference to what the SW3 settings should be (located nearest the 7447A chip)...

Seeking info on fans for a Newer Technology - MAXPower G4 7447A single processor upgrade. As the Sonnet and the NewTech appear so similar, think I’d prefer the seemingly, lower profile Sonnet fan info. (Perhaps a mistake?) Target Quicksilver. AND, anyone owning the same single-processor variant...

Thanks MOS8_030. Nice that the 1.25 speed isn't included in the switch settings for either the 100 or 133Mhz chart noted above. And, when 2 dip switches are mentioned, I think they're referring to the dual processor versions that do have two outside switches... and not these single processor...

I wrote to NewerTech last week (Monday) and they did not answer. Tonight I have written to OWC customer service (they originally sold these processors). The online manual: https://www.newertech.com/downloads/nwtmang4max.pdf says that for the 133MHz Quicksilvers, the switches are preset and do...