How to Check Your Drive's Health
- Download and install CrystalDiskInfo from the official download page.
- Launch the application. It will automatically scan and list all connected drives.
- Check the "Health Status" column. A "Good" status means your drive is healthy. "Caution" or "Bad" requires immediate attention.
- Click on a drive to see detailed S.M.A.R.T. attributes like temperature, power-on hours, and read error rate.
- Enable the Resident function to monitor your drives continuously from the system tray.
Understanding S.M.A.R.T. Attributes
S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) is a monitoring system included in hard drives and SSDs. Here are the key attributes to watch:
- 05 Reallocated Sectors Count: A high value indicates bad sectors that have been remapped. A rising count is a sign of imminent failure.
- C4 Reallocation Event Count: The total number of remap operations. A high number is concerning.
- C5 Current Pending Sector Count: The number of unstable sectors waiting to be remapped. If this is non-zero, back up your data.
- C6 Uncorrectable Sector Count: The number of uncorrectable errors. Any value here is critical.
- C7 Interface CRC Error Count: Usually indicates a bad cable. Try replacing your SATA cable.
- Power On Hours: The total time the drive has been powered on. Useful for estimating remaining lifespan.
How to Use AAM/APM Controls
AAM (Automatic Acoustic Management) and APM (Advanced Power Management) allow you to control the noise and power consumption of your hard drives.
- Select a drive in the main CrystalDiskInfo window.
- Go to Function > Advanced Feature > AAM/APM Control.
- For AAM: Set the acoustic level. "Quiet" minimizes noise but may reduce performance. "Performance" maximizes speed.
- For APM: Set the power level. Lower values save power but may slow down the drive's response time.
- Click "Set" to apply the changes. These settings are not permanent and may reset after a reboot on some drives.
Setting Up Temperature Alerts
- Go to Function > Alert Settings.
- Check "Temperature Alert" and set your desired threshold (e.g., 50°C for HDDs, 70°C for SSDs).
- Choose your alert method: Sound, Mail, or Tray balloon notification.
- For email alerts, enter your SMTP server, port, username, password, sender, and recipient email addresses.
- Click "Apply" to save your settings. CrystalDiskInfo will now monitor temperatures in the background and alert you if they exceed the threshold.
Troubleshooting: "No Disk Found"
If CrystalDiskInfo reports "No Disk Found," here are the steps to diagnose the issue:
- Check CrystalDiskInfo version: Ensure you have the latest version installed.
- Run as Administrator: Some controllers require administrative privileges to access S.M.A.R.T. data.
- Check USB bridges: Ensure your USB enclosure supports S.M.A.R.T. passthrough. Some cheap enclosures block this data.
- RAID configurations: CrystalDiskInfo does not support all RAID controllers. Try switching to AHCI mode in your BIOS if possible.
- Intel RST/VMD: If using Intel RST or VMD, CrystalDiskInfo may require specific drivers to detect the drives.
- Reinstall CrystalDiskInfo: A corrupted installation can sometimes cause detection issues.