What is DRAM-CAC-FAIL?
SSD internal DRAM cache failure ranks as a high-severity storage drive (SSD/HDD) issue in our database. A buffer built directly on the disk reports a hardware error. Typical causes include end of life (age), defective cable, power outages and high temperatures in the M.2 slot. Use the steps below to track down and fix the cause.
Common Causes
- End of life (age)
- Defective cable
- Power outages
- High temperatures in the M.2 slot
Step-by-Step Fix Guide
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1
Back up all data immediately
We'd suggest Back up all data immediately first — it's the fix most often responsible for solving DRAM-CAC-FAIL outright.
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2
Try replacing the SATA data cable
A second occurrence often means a less common storage instability cause is at play, which later steps address.
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3
Run manufacturer diagnostics
Try "Run manufacturer diagnostics" next if the issue persists — it addresses a secondary cause.
Commands & Diagnostics
chkdsk C: /f /r
wmic diskdrive get status
Frequently Asked Questions
DRAM-CAC-FAIL is most often triggered by end of life (age). Other reports point to defective cable, power outages and high temperatures in the M.2 slot as contributing factors.
"Back up all data immediately" clears up most DRAM-CAC-FAIL reports by itself. The remaining steps above cover what's left.
DRAM-CAC-FAIL is a high-severity error. It won't damage your PC instantly, but repeated occurrences usually point to a deeper problem worth addressing soon.
Usually. DRAM-CAC-FAIL is fixable with the steps above; a full Windows reinstall is rarely necessary unless everything else has failed.
Open CrystalDiskInfo (free tool) to check your drive's S.M.A.R.T. status. Any yellow or red indicators — especially reallocated sectors or pending sectors — confirm the drive is degrading and should be backed up and replaced immediately.
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