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I've just bought a new 1Tb HDD: HGST HTE541010A9E680, formatted it as NTFS (tried both quick and full format).
It has very low write speed.
I also have other HDDs and SSD on this PC, and they have high writing speeds.
Write caching on the new drive is enabled in Windows (as by default).
I tried to check and even change SATA and power cables and ports.
Here is a part of Crystal Disk Mark test results:
----------------------------------------------------------------------- CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo
MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 85.710 MB/s Sequential Write : 8.634 MB/s
Test : 1000 MB [D: 0.0% (0.1/465.8 GB)] (x2) Date : 2014/04/23 1:00:30
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
When I tried to copy several big files to the new drive I noticed that its writing speed is floating between 3-4 Mb/s and ~80 Mb/s. It took 319 seconds to copy 6 big files (7350 Mb total) from SSD to the new HDD, so the average speed was 23 Mb/s.
The writing speed seems to be very unstable. For example, here is another Crystal Disk Mark test results (made an hour after the first test above):
----------------------------------------------------------------------- CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo
MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 93.900 MB/s Sequential Write : 85.759 MB/s Random Read 512KB : 22.100 MB/s Random Write 512KB : 7.714 MB/s
Test : 1000 MB [D: 0.8% (0.1/9.8 GB)] (x5) Date : 2014/04/23 2:46:27
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
Note the Random Write 512KB low speed: 7.7MB/s - this particular test gives stable result ~8MB/s, which I think is very low (my other HDDs show 30-50 MB/s in this test).
I also tried to connect this HDD to another PC and got similar results.
As Jason gave me the link for diagnostic tool from the manufacturer, here are the current results:
ReadErrStat : Done Result : Pass Date/Time : 04/23/2014 02:18:47 SMART QT : Done Result : Pass Date/Time : 04/23/2014 02:18:47 SURFACE QT : Done Result : Pass Date/Time : 04/23/2014 02:44:50 SMART ET : Done Result : Aborted Date/Time : 04/23/2014 04:05:36 SURFACE ET : Done Result : Pass Date/Time : 04/23/2014 06:12:28
I've aborted SMART Extended Test because after some progress it was looking like it's not doing any progress any more (I waited for an hour but the progress didn't change, tried it 2 times).
What can be the cause of the problem?
You aborted a test? SATAII drive connected to SATAIII port? – Ramhound – 2014-04-23T01:34:28.233
Yes, I aborted SMART Extended Test. SATA3 drive connected to SATA2 port. – Junior1993 – 2014-04-23T01:42:59.657
Are the motherboard drivers installed properly? Do you have any alternate SATA cable for testing? – Kenneth L – 2014-04-23T01:52:21.970
Yes, the drivers are installed properly. In the question I wrote that I tried different cables, SATA ports and even tried the HDD on another, more modern PC. Other HDDs on my PC have no problems with writing speed. At the moment I am 95% sure that the HDD has some kind of defect. – Junior1993 – 2014-04-23T01:57:34.833
So RMA the drive but without that extended test we can't be sure – Ramhound – 2014-04-23T10:08:21.430