2015年1月23日 · CRC is a checksum that allows for detection of changes in the data the checksum was computed for. So for example a checksum is computed for a sector worth of data and then both are written to the drive. If we read back, we should get the same checksum and if not either the data or the checksum is incorrect.

2022年4月12日 · Other drives attached to the same ports don't seem to do this. A long SMART test doesn't throw errors. Main questions: Does this indicate a problem with the drive itself? What is the risk of the data that has been transferring to other drives under this condition being corrupted in the target location? Screenshots of the smart results is below.

2020年5月14日 · I then ran a HDDScan SMART report which shows everything as green except Ultra DMA CRC Errors giving it a value of 200 which is the worst. Everything seemed to be fine until having to suddenly turn off the computer, so I presume the cause could be that.

2018年2月22日 · About a month ago my PC (running Win 10 Pro) started to crash randomly and when copying some files, I noticed there was an issue with file corruption on the target drive. This then behaved for a few days and then escalated to the system freezing completely. When the system wouldn't restart, I...

2022年4月30日 · DMA is Direct Memory Access, change cables and check again, if still there get the hdds in another rig and check, that will determine if the sata ide on the drive or mobo, is bad, only way to know if mobo is bad is to check a known good drive.

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2015年9月22日 · The good news is that the CRC errors you see are automatically and silently recovered from by the SATA controller. Most often the issue is caused by a faulty, kinked, or poorly seated SATA cable/connection. Don't worry about the count as it stands now (3 is a very low number), but do worry if the count increases over time.

2011年12月28日 · "The total quantity of CRC errors during UltraDMA mode. The raw value of this attribute indicates the number of errors found during data transfer in UltraDMA mode by ICRC (Interface CRC)." Fairly self-explanatory, but of course that doesn't point directly to the cause.

2007年6月6日 · HD Tune is showing very high numbers of Ultra DMA CRC ERRor Count for both drives running on my motherboards SATA controller. Over 63,000 for the system drive! I have a 320GB WD, and a 64GB OCZ Agility SSD as the boot drive. Here are the Health screenshots: Agility WD HD Tune says that it...

2018年2月12日 · This will be preferable to having to retry failed reads and silent data corruption on writes. The slowdown is temporary until a reboot, and also on a per port basis so if e.g. ssd on port 0 falls back to sata 300 from sata 600 due to SMART crc errors, the ssd on port 1 if no crc errors will stay at sata 600 speeds.