Just tried a 4GB file here. I did have a couple of dips to 35 but it was mostly 50MB/s.
USB Problems
- Thread starter Rensin
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Just tried a 4GB file here. I did have a couple of dips to 35 but it was mostly 50MB/s.
Have changed the write policy to "better performance" and my maximum speed was about 5MB/s. Write cache could not be enabled.
I should receive my new pen drives tomorrow which includes a SanDisk Extreme which has apparnt write speeds of upto 100MB/s.
If they fail I will try what postmanfw & labcoattech say.
Not sure what has changed as transfer speeds were OK a couple of weeks ago.
I should receive my new pen drives tomorrow which includes a SanDisk Extreme which has apparnt write speeds of upto 100MB/s.
If they fail I will try what postmanfw & labcoattech say.
Not sure what has changed as transfer speeds were OK a couple of weeks ago.
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Recieved my Pen drives today. The Extreme drive works great averaging 65MB/s write speed (over network) 90MB/s local but the Ultra drive is the same as others, starts off around 54MB/s than drops to around 18MB/s.
Think it's a clean install over the weekend
Extreme drive copying 8GB single file.
Think it's a clean install over the weekend
Extreme drive copying 8GB single file.
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Sounds like a motherboard issue, only way to be sure is to test the USB flash drive on another PC or get a USB 3 PCIe add-on card.
Also check the BIOS to make sure the USB ports are set to full speed.
Also check the BIOS to make sure the USB ports are set to full speed.
have tried them on my HTPC and have the same problem, even with the brand new pen drives. Both are running w10.
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So your USB pen drives are slow on another PC?
correct, I know the obvious answer is the pen drives but I have the same problem with new pen drives, all different brands.
ok have just got a BSOD with the error IRQL_NOT_LESS_OR_EQUAL.
Have viewed the .dmp file via BlueScreenView and it shows it was caused by driver hal.dll File Description: Hardware Abstraction Layer DLL.
Crash Address: ntoskrnl.exe+142760
any ideas?
Have viewed the .dmp file via BlueScreenView and it shows it was caused by driver hal.dll File Description: Hardware Abstraction Layer DLL.
Crash Address: ntoskrnl.exe+142760
any ideas?
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OK, the next step is to wipe and format your USB flash drives, to do this you will need to download the gparted ISO and burn it do disc.
http://downloads.sourceforge.net/gparted/gparted-live-0.25.0-3-i686.iso
Boot from the disc, just select the defaults and you should soon be in a live Linux environment with gparted running.
Plug in one of your USB flash drives and select GParted > Refresh Devices, you should now be able to select your USB flash drive via the menu in the top right, it should have the capacity listed next to it to help identify the correct drive. Be careful not to wipe any other drive!
1, Right click on the partition and select delete.
2, Click on Device > Create Partition Table, msdos > Apply
3, Right click on unallocated and select New > change filesystem to either fat32 / ntfs > click add
4, Click Apply > then Apply again
5, click close and quit Gparted by pressing Ctrl + Q
Double click Exit and select Shutdown, make sure you remove the CD / USB flash drive and boot into windows, test and let us know how you get on. Any questions let me know.
http://downloads.sourceforge.net/gparted/gparted-live-0.25.0-3-i686.iso
Boot from the disc, just select the defaults and you should soon be in a live Linux environment with gparted running.
Plug in one of your USB flash drives and select GParted > Refresh Devices, you should now be able to select your USB flash drive via the menu in the top right, it should have the capacity listed next to it to help identify the correct drive. Be careful not to wipe any other drive!
1, Right click on the partition and select delete.
2, Click on Device > Create Partition Table, msdos > Apply
3, Right click on unallocated and select New > change filesystem to either fat32 / ntfs > click add
4, Click Apply > then Apply again
5, click close and quit Gparted by pressing Ctrl + Q
Double click Exit and select Shutdown, make sure you remove the CD / USB flash drive and boot into windows, test and let us know how you get on. Any questions let me know.
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reset BIOS to defaults, might even be worth removing everything down to just the bare essentials but depending how much time you want to spend trying to figure out what is causing the issue it might be worth removing the motherboard from the case.
ok mate, have just formatted my pen drive as per above, BIOS is back to default & all USB & hard drives have being disconnected (apart from mouse, keyboard & 950NVME drive) ... still have the same problem.
Have also tried on my brothers laptop running Windows 8 and get the same.
Have also tried on my brothers laptop running Windows 8 and get the same.
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And the file you are copying is from a local drive on the PC / Laptop to the USB flash drive?
sure is mate, w10 iso is on both local drives.
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Everything seems to point to the USB flash drive, test it using h2testw 1.4 and let us know.
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will do, I know the problem sounds like the pen drive but this happens on all my pen drives except the Extreme pen drive.
All of these were purchased from the rainforest place direct (no reseller) so surely they are not selling dodgy drives?
Have just finished testing the 3 pen drives I have on me.
Both are Sandisk Ultra
32GB
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 18.6 MByte/s
Reading speed: 109 MByte/s
H2testw v1.4
16GB
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 11.2 MByte/s
Reading speed: 96.8 MByte/s
H2testw v1.4
Extreme 32GB
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 96.4 MByte/s
Reading speed: 187 MByte/s
H2testw v1.4
Both are Sandisk Ultra
32GB
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 18.6 MByte/s
Reading speed: 109 MByte/s
H2testw v1.4
16GB
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 11.2 MByte/s
Reading speed: 96.8 MByte/s
H2testw v1.4
Extreme 32GB
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 96.4 MByte/s
Reading speed: 187 MByte/s
H2testw v1.4
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You should have happy to know that your PC is fine, it's the USB flash drive that has slow write speed, you got 96.4 MB/s with the extreme.
http://usb.userbenchmark.com/SanDisk-Ultra-USB-30-32GB/Rating/1506
http://usb.userbenchmark.com/SanDisk-Ultra-USB-30-32GB/Rating/1506
ah, not sure why the write speeds were higher a couple of weeks ago, guess I got lucky. Just checked my other pen drives on the site above and those are slow write speeds too (corsair voyager)
Will return the pen drives & check the site above before purchasing.
thanks for your help & advice
