somewhere I do have schematics for a "PowerBook G5"
or certainly an Portable with G5 and U3Lite and portable/battery power management, what the actual prototype looked like is anyones guess LOL
yeah here we go, theres a board view file in there, not sure I ever actually opened it (at the time board view software was a bit in its infancy and the older board view files took quite bit of faffing around to open) if someone can get said board view file open the shape of the logic board might give us some clues!
as you say with the DLSD above its no secret that apple was certainly planning on/playing with the 7448, but they just never went through with it, me and a few other members on here talk about in some old threads as there used to be an annoying persistent rumour that DLSD's had 7448's which they did not!
example where I talk about it as far back as 2017! https://forums.macrumors.com/thread...de.2065752/page-3?post=25045724#post-25045724
Block diagram from the schematics:
I was able to open PBG5.bvr without any problems using OpenBoardView.
Top of board:
Bottom of board (annotations added):
J4010 and J4020 are DDR SODIMM slots (333MHz, 128bit, 2.5V).
J9020 - Firewire 1934B connector (Firewire 800)
J9010 - Firewire 1394A connector (Firewire 400)
J8710 - Gigabit Ethernet (J8700 in the block diagram appears to be a typo)
J5690 - S-Video connector
J5900 - DVI-I connector
U2300 - "Shasta" chipset/Southbrdige
U5700 - SIL1178 TMDS encoder (used for DVI output)
U8600 - "Vesta" Ethernet/Firewire interface
U2900 - PPC970 "NEO 10S" CPU
U3 - Northbridge "U3Lite"
U4900 - ATI M11 AGP-connected GPU - might be an "ATI Mobility Radeon 9700"
There are connectors running off the logic board for left and right USB 2.0 ports, an audio codec, ATA ports for both hard drive and optical drive, PCI for the AirPort card, and a Cardbus connector. Interestingly, the trackpad is annotated as being connected via USB and handling the keyboard signals as well, like on the early Intel MacBook Pros (older PowerBooks used ADB for those interfaces).
There are two fan connectors, and the display is connected via LVDS rather than TMDS.
It seems like this was going to fit roughly into the footprint of a PowerBook G4 based off the external connectors. I would love to see what the heatsink solution for this beast would have looked like...