How to optimize SATA throughput on Onda 9D4-DVH for Unknown 9th Awakening?
Every time I entered a new puzzle area, the loading bar would just hang at 99% for ages, which completely killed the game's pacing. It turns out the SATA controller on the Onda 9D4-DVH has a wake-up delay of 200-350ms in low-power mode, causing the engine to hit an I/O timeout. I wasted hours formatting the drive and reinstalling the game, which did nothing—I was honestly starting to panic. I finally moved the data cable from the SATA 2 port to a native SATA 3 port and disabled the 'Fast Startup' power saving options for the disk. In CrystalDiskMark, my random 4K reads jumped from 12-18MB/s to 22-28MB/s, and loading times plummeted from 25 seconds to about 12. I did notice the system boot was slower after the port swap, but fixing the boot order in BIOS solved that. Now the drive stays at 38-45℃ and the chipset is at 52-58℃. The throughput curve is smooth now, and the game feels way more responsive.