Old Thinkpad laptop was wired up like that, the 386 was not any better than a Compaq 486 at 25 mhz. The Thinkpad had a useful feature. The 16 Gb CF card caused an extreme boost for the laptop, Doom worked like hell at small screen. The CF card had a HC feature, causing the extreme performance tuning for the 25 mhz 386 sx. When a microdrive was installed, or the own hdd was in use, this cpu tuning didn’t happen. The wiring probably had something to do with the PCMCIA’s additional performance tuning. Other laptops are not wired like that.
Old Thinkpad laptop was wired up like that, the 386 was not any better than a Compaq 486 at 25 mhz. The Thinkpad had a useful feature. The 16 Gb CF card caused an extreme boost for the laptop, Doom worked like hell at small screen. The CF card had a HC feature, causing the extreme performance tuning for the 25 mhz 386 sx. When a microdrive was installed, or the own hdd was in use, this cpu tuning didn’t happen. The wiring probably had something to do with the PCMCIA’s additional performance tuning. Other laptops are not wired like that.
It's interesting how certain hardware configurations can lead to unexpected performance boosts. Thanks for sharing your experience!