No. The drive shuts down at 100°C. ABS plastic melts at 200°C. You are safe regarding fire hazards.
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Have you successfully cooled down your PS2251-07? Share your thermal mods in the comments below. phison ps225107ps2307 hot
Run fsutil usn queryjournal X: (replace X with your drive letter). If the USN journal is enabled, Windows is logging every file change. Disable indexing and disable "Last Access Time" updates via fsutil behavior set disablelastaccess 1 .
If you can hold the drive for 10 seconds after a file transfer, it is fine. If you cannot touch it without yelping, it is time for a hardware mod or an upgrade. You are safe regarding fire hazards
Silicon degradation for this controller begins around 125°C. You will burn your fingers and melt the plastic case before you destroy the chip. The Phison PS2251-07 is remarkably resilient.
If you already own a PS2307 drive, use it for short, bursty file transfers. Avoid using it as a Windows ReadyBoost drive or a torrent download destination. For large, continuous backups, either force USB 2.0 mode or invest $20 in a modern drive. Run fsutil usn queryjournal X: (replace X with
The controller itself will last decades. The NAND flash will die first. At 70°C operating temperature, the drive's data retention drops from 10 years to roughly 18 months. Conclusion: Living with the Phison PS2251-07 / PS2307 The "Phison PS2251-07 PS2307 hot" issue is a textbook case of a capable controller squeezed into a terrible thermal envelope. Is it a design flaw? Yes. Is it a reason to throw away your drive? Only if you value comfort over cost.