![]() Could it be the cause? It could be electric surges generated by the PSU or the motherboard but I suppose it should damage the PCB, not the plate, am I right? By the way I never move the box and the drives are never too hot. In the P182 the drives are in a vertical position, not horizontal. Is it possible that the magnetic field generated by the PSU damages the plate of the HDD? The PSU is a Corsair 520HX, on a Seasonic base, then it's supposed to be a good PSU. My box is an Antec P182 so the drive is at the bottom, near the PSU. So my questions: - What does mean these slowdowns during the scan but with no error? Are some sectors "weak" but still readable after some retries? And maybe sometimes the drive doesn't correctly read or write these sectors and makes some files corrupted? - The most important question: Why my drive are always get damaged !? In a bit more than 12 months, three drives damaged (Samsung F1: bad sector, Seagate: reallocated sector count, Samsung F3: slowdowns during the scan and data corruption) For me it's hard to believe it's just a coincidence. I tried MHDD but it didn't detect the drive. HDAT2 reported no error (but I saw some slowdowns during the scan). ESTool by Samsung reports no error but I can see the progress bar slows down sometimes and hear the head making noise on some sectors. Samsung.png I redid a surface scan and saw the scanning speed decreases (down to 60 MB/s) while readind some blocks. Since I was using it, I launched the benchmark test and saw the curve was weird: One month later, it happened again but this time I couldn't even boot! Not a surprise: with the help of the recovery console and an hex editor I found out that something like 100 system files were corrupted! Again I manually restored them (what a painful task!) Then, again, I scanned it with hd tune: no bad block. I really didn't understand the problem, but well, disk crashes happen sometimes. Finally I replaced the corrupted files (identified thanks to sfc /scannow) from the original windows dvd. I thought it may be again the HDD but SMART is ok and hd tune reported no bad block. Moreover the modification time of the corrupted file were not changed. I checked the running tasks, the executables ran at startup, the services.: nothing suspect. It may look like a virus but I have an AV running in background, also did a full scan and it found nothing. Chkdsk fixed some orphaned files and other errors. Not zeroed but something like random or compressed data. Files were not gone but the bytes were corruped. But in january 2011 I had a weird issue: Many files were corrupted (exe, dll, jpg.). In november 2010 I bought a Samsung F3 500 GB to replace the dying Seagate. Again no bad sector according to hd tune or chkdsk. CrystalDiskInfo and Speedfan reported the reallocated sector count reached the error level. ![]() But in october 2010, I got a SMART error message at the boot telling me the drive was going to fail. Moreover I scanned the drive with hd tune pro which found no bad sector. Since I knew software sometimes don't know exactly how to interpret SMART data I wasn't very worried. Some months later, just because I was curious, I checked the SMART data and found out the reallocated sector count value was in yellow. ![]() In february 2010, I bought a Seagate 7200.12 500 GB to replace the Samsung. ![]() In late 2009, I found out it had some bad sectors. In late 2008 I built a new computer, I chose a Samsung F1 320 GB. Hello, In 20 years I bought 7 or 8 hdd, from 80 MB to 40 GB. ![]()
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