I put in a USB 3 card in a PC - speed only doubled? Where's the weak link?
I have an Optiplex 780 computer with Core 2 Quad processor, 8 GB RAM, running windows 10
I had installed a rosewell 4 port external USB 3.0 PCI express card in the PC. It self installed drivers from microsoft,
https://www.newegg.com/Product/Product.aspx?Item=N82E16815166038&cm_re=rosewell_external_3.0-_-15-166-038-_-Product
With a WD My Passport Ultra (a USB 3 external hard drive) connected to the front USB port of the PC (USB 2?), I copy a file from the internal hard drive to the external hard drive. It's a 10GB file and takes about 6 minutes to transfer. on the screen, it shows it moving the file at around 24 MB/s.
I connected the WD drive to one of those USB ports and that same file (renamed so it thinks it's a different file) takes about 3 minutes and about 63 MB/s.
I looked on the box, it uses renesas uPD720201 chipset. I got drivers from the renesas website and redid the test. Same 3 minutes / 63MB/s.
I thought 3.0 was much faster than 2.0? What would you think is the weak link in this test / how can I do to try to boost speed?
Something interesting? I copied that 10GB file from the internal hard drive onto the same hard drive (it's on the desktop. I right click, choose copy then paste on the desktop so I got a 2nd file - copy of ....)
That started out at 500MB/s then quickly dropped down to around 25MB/s!? This internal hard drive is a seagate barracude 7200 320GB drive with lots of space.
Interesting how it started really fast than dropped off to below the speed of copying the file off the drive itself. Yeah, write vs. read speeds.... and yeah, it's an older PC.
Doing that same read / write to the same with the external drive on the front USB 2, I get 13MB/s
Using the USB 3 port, the read / write to the same external drive is about 25MB/s (slower than from internal hard drive to external hard drive.
OK, copy from external drive using USB 3 to internal drive, I get about 90MB/s (after a 600?MB/s start for a couple seconds.
Any tips?
I had installed a rosewell 4 port external USB 3.0 PCI express card in the PC. It self installed drivers from microsoft,
https://www.newegg.com/Product/Product.aspx?Item=N82E16815166038&cm_re=rosewell_external_3.0-_-15-166-038-_-Product
With a WD My Passport Ultra (a USB 3 external hard drive) connected to the front USB port of the PC (USB 2?), I copy a file from the internal hard drive to the external hard drive. It's a 10GB file and takes about 6 minutes to transfer. on the screen, it shows it moving the file at around 24 MB/s.
I connected the WD drive to one of those USB ports and that same file (renamed so it thinks it's a different file) takes about 3 minutes and about 63 MB/s.
I looked on the box, it uses renesas uPD720201 chipset. I got drivers from the renesas website and redid the test. Same 3 minutes / 63MB/s.
I thought 3.0 was much faster than 2.0? What would you think is the weak link in this test / how can I do to try to boost speed?
Something interesting? I copied that 10GB file from the internal hard drive onto the same hard drive (it's on the desktop. I right click, choose copy then paste on the desktop so I got a 2nd file - copy of ....)
That started out at 500MB/s then quickly dropped down to around 25MB/s!? This internal hard drive is a seagate barracude 7200 320GB drive with lots of space.
Interesting how it started really fast than dropped off to below the speed of copying the file off the drive itself. Yeah, write vs. read speeds.... and yeah, it's an older PC.
Doing that same read / write to the same with the external drive on the front USB 2, I get 13MB/s
Using the USB 3 port, the read / write to the same external drive is about 25MB/s (slower than from internal hard drive to external hard drive.
OK, copy from external drive using USB 3 to internal drive, I get about 90MB/s (after a 600?MB/s start for a couple seconds.
Any tips?
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I have read some reviews saying that newer model of WD My Passport Ultra can have a write rate of up to 100mb/s or above.
You need to run resource manager when you do the copying and you will know what factors are the bottlenecks (CPU, RAM or Disk I/O).
You need to run resource manager when you do the copying and you will know what factors are the bottlenecks (CPU, RAM or Disk I/O).
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