Oh, I did magnificent things to my old Toughbook CF-17 / CF-m34. (It ended up as a franken-puter with parts of both.)
First: Remove the internal CDPD wireless modem, remove the internal 56k POTS modem/10/100 Ethernet combo card. Wire the TTL-level UART from the CDPD port over to the RJ11 jack so I could now hack on embedded devices using a simple RJ11-to-bare-wires cable.
Second: The modem/ethernet card removal freed up the MiniPCI slot. Obtain a MiniPCI-to-USB2.0 card (4 downstream ports), and desolder the tall headers (it was meant for embedded machines with more internal space). Then verrrry carefully desolder the machine's external USB1.1 port pins from the mobo, and wire them over to one of the USB2.0 host ports. (Ground stayed, but D+/D-/Vbus moved.) Ta-daa, faster external devices.
Third: Carve out some stiffening ribs from under the palm-rest, shuck a USB-Bluetooth adapter, and mount it in there. The palm-rest being plastic means this puts the radio outside the magnesium shell, but still "internal" from an ergonomic perspective. Sneak some wires past the touchpad opening and solder them to the now-freed-up USB1.1 host port on the mobo, since bluetooth doesn't need 480Mbps.
Fourth: Shuck a 2GB USB flash drive and wire it to another internal USB2.0 port, and run EBoostr, a third-party implementation of Readyboost for WinXP, which gave flash-cache functionality for severely RAM-limited machines like mine (192MB mobo max, sadly!). Tuck it up by the RAM, ironically, because there's plenty of room up there.
Fifth: Shuck a USB2.0-GigE adapter (one with separate magnetics and jack, leave the magnetics but remove the jack because it's too tall, also remove the USB port), and wire it to yet a third internal USB2.0 port. Wire the Ethernet side out to the RJ45 jack freed up by the 10/100 card removal. The speed boost from 100Mbps to 480Mbps (GigE bottlenecked by USB2.0) isn't nothing, but the real benefit is that GigE is Auto-MDIX so I never have to carry a crossover cable, and that's worth it all by itself.
Sixth: Shuck a USB-Wifi dongle, and wire it to the fourth and final internal USB2.0 port. Do the world's hairiest coax splice to the CDPD modem's antenna lead, so the 2.4GHz RF now goes out to the 800MHz-tuned antenna mounted on the screen. Split the antenna open and trim the active elements to 1/3 their length, raising the resonant frequency accordingly. Without access to a VNA at the time, this was as good as I could get, and it worked just fine.
At that point, it was pretty much the perfect laptop, except for the brutally-limited RAM, which eventually forced its obsolescence as browsers bloated without bound. I used it heavily during 2006-07, and to this day I still miss that perfect little keyboard.
I’ve never been brave enough to modify my laptops beyond the one time I sprayed a new (hard) topcoat on an Acer Aspire 5520g… which turned it from a flimsy piece of garbage into a slightly less flimsy piece of garbage.
I feel like running a Thinkpad x201 these days would be a lesson in frustration (for the browser bloat you mentioned) but that was my perfect laptop. If I could do a mainboard swap I would continue to use it.
Yeah, although the low-res screens on older machines are pretty limiting with modern UIs too. Try setting 800x600 for an hour and see how you fare. I have romantic dreams about spinning a new mobo for the Toughbook, but it would have to include a screen transplant too. And at that point I probably fail a lot of the toughness that made it worthwhile in the first place.
First: Remove the internal CDPD wireless modem, remove the internal 56k POTS modem/10/100 Ethernet combo card. Wire the TTL-level UART from the CDPD port over to the RJ11 jack so I could now hack on embedded devices using a simple RJ11-to-bare-wires cable.
Second: The modem/ethernet card removal freed up the MiniPCI slot. Obtain a MiniPCI-to-USB2.0 card (4 downstream ports), and desolder the tall headers (it was meant for embedded machines with more internal space). Then verrrry carefully desolder the machine's external USB1.1 port pins from the mobo, and wire them over to one of the USB2.0 host ports. (Ground stayed, but D+/D-/Vbus moved.) Ta-daa, faster external devices.
This is the only bit I seem to have a photo of: https://flickr.com/photos/myself248/255205625/
Third: Carve out some stiffening ribs from under the palm-rest, shuck a USB-Bluetooth adapter, and mount it in there. The palm-rest being plastic means this puts the radio outside the magnesium shell, but still "internal" from an ergonomic perspective. Sneak some wires past the touchpad opening and solder them to the now-freed-up USB1.1 host port on the mobo, since bluetooth doesn't need 480Mbps.
Fourth: Shuck a 2GB USB flash drive and wire it to another internal USB2.0 port, and run EBoostr, a third-party implementation of Readyboost for WinXP, which gave flash-cache functionality for severely RAM-limited machines like mine (192MB mobo max, sadly!). Tuck it up by the RAM, ironically, because there's plenty of room up there.
Fifth: Shuck a USB2.0-GigE adapter (one with separate magnetics and jack, leave the magnetics but remove the jack because it's too tall, also remove the USB port), and wire it to yet a third internal USB2.0 port. Wire the Ethernet side out to the RJ45 jack freed up by the 10/100 card removal. The speed boost from 100Mbps to 480Mbps (GigE bottlenecked by USB2.0) isn't nothing, but the real benefit is that GigE is Auto-MDIX so I never have to carry a crossover cable, and that's worth it all by itself.
Sixth: Shuck a USB-Wifi dongle, and wire it to the fourth and final internal USB2.0 port. Do the world's hairiest coax splice to the CDPD modem's antenna lead, so the 2.4GHz RF now goes out to the 800MHz-tuned antenna mounted on the screen. Split the antenna open and trim the active elements to 1/3 their length, raising the resonant frequency accordingly. Without access to a VNA at the time, this was as good as I could get, and it worked just fine.
At that point, it was pretty much the perfect laptop, except for the brutally-limited RAM, which eventually forced its obsolescence as browsers bloated without bound. I used it heavily during 2006-07, and to this day I still miss that perfect little keyboard.