Drive stops being recognized during large file transfer


yeah ysplit dual power usb cables are just another option. a powered usb hub is the same, except it plugs into the wall and supplies multiple usb ports with external power. in this scenario, no difference.
 

My Computer

System One

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    Windows 11 Pro
dacrone said:
yeah ysplit dual power usb cables are just another option. a powered usb hub is the same, except it plugs into the wall and supplies multiple usb ports with external power. in this scenario, no difference.
Click to expand...

I guess if it's true that the hub would supply more power than the USB standard specifies then it would work. Have the check the specs of the hub to be sure.

It says 1 amp, so even USB 3.0 wouldn't quite be enough. But I used the Y cable for a long time without a problem.

20250201_001040.webp
 

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before I buy anything is there any way I can be more certain it is the power that is the issue?
 

My Computer

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  • OS
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medben said:
before I buy anything is there any way I can be more certain it is the power that is the issue?
Click to expand...

Try it on another pc that might have more power.
 

My Computer

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    Intel
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    Intel(R) Core(TM) i9-14900K
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I will buy a power thing. The one reason I'm really surprised if it's power that is the issue - my old PC did it just fine, and that was an awful 2011 PC. How is it doing worse for power on the USB than a modern one????
 

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save the following as a .ps1 file. launch powershell as admin, browse to and run .ps1. then go into advanced power settings and check this setting:

1738461964499.webp

Code: 
#Requires -RunAsAdministrator
# Unlock-PowerCfg - v22.05.11

# Disable "Connected Standby"
Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Power' -Name 'CSEnabled' -Value 0 -Force

# Get Power Settings entries and add/set 'Attributes' to 2 to unhide
$PowerCfg = (Get-ChildItem 'HKLM:\SYSTEM\CurrentControlSet\Control\Power\PowerSettings' -Recurse).Name -notmatch '\bDefaultPowerSchemeValues|(\\[0-9]|\b255)$'
foreach ($item in $PowerCfg) { Set-ItemProperty -Path $item.Replace('HKEY_LOCAL_MACHINE','HKLM:') -Name 'Attributes' -Value 2 -Force }
 

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dacrone said:
save the following as a .ps1 file. launch powershell as admin, browse to and run .ps1. then go into advanced power settings and check this setting:

View attachment 123998

Code: 
#Requires -RunAsAdministrator
# Unlock-PowerCfg - v22.05.11

# Disable "Connected Standby"
Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Power' -Name 'CSEnabled' -Value 0 -Force

# Get Power Settings entries and add/set 'Attributes' to 2 to unhide
$PowerCfg = (Get-ChildItem 'HKLM:\SYSTEM\CurrentControlSet\Control\Power\PowerSettings' -Recurse).Name -notmatch '\bDefaultPowerSchemeValues|(\\[0-9]|\b255)$'
foreach ($item in $PowerCfg) { Set-ItemProperty -Path $item.Replace('HKEY_LOCAL_MACHINE','HKLM:') -Name 'Attributes' -Value 2 -Force }
Click to expand...
worked in changing the setting. the first file downloaded even faster. it still did that crash down to 0 thing again and then eventually failed.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
I'm not a fan of USB powered drives - far better to have a mains powered one.
As people tend to jiggle USB plus when installing and removing them that can cause solder joint failures on the connector which could manifest as a problem after a period of use and things heat up, and could also be responsible for the drive disappearing.
Tip: use a short USB cable (6" long) to plug into rather than the port on your pc. Cheaper to fix than a motherboard...
Bear in mind too that this is an OLD issue AND affects Mac and Linux users too so best to look for a common factor.
Power settings are a red herring as they aren't relevant while transferring data, only when idle.
One thing to check (as per the old days) is for IRQ conflicts - check under device manager / drive controller.
It's best for drives to have a dedicated IRQ rather than share it, and this has and definitely can cause issues.
There was a case where an audio device shared an IRQ with a HDD and the HDD kept disappearing. Switched to a different IRQ and bye-bye problem.
 

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medben said:
i tried this and it seems to be working (it has been transferring large files for 20 minutes and hasn't disconnected yet). It still does the weird transfer speed falling to 0 thing, but it waits a while and then comes back. I wonder what causes that.

edit: lol right after i said that it disconnected. well, it lasted longer this time
Click to expand...

Yup, I've had to go into Device Manager and untick all those power and sleep settings from every entry in there. And not just the USB one's, either. Many have that Power Management Tab setting so you'd have to go through them one by one to see which ones do and which one's don't. Then untick every sleep box you can find.

There was another thread about this not too long ago...

Disable Power Management for all devices via script

Im trying to disable all Power Management options for all devices found under Device Manager. This includes all USB devices and NICs. I came across the "Disable-NetAdapterPowerManagement" command and ran: Disable-NetAdapterPowerManagement -Name * The "Allow the computer to turn off this device...
www.elevenforum.com www.elevenforum.com

And using the powercfg -devicequery wake_armed command was a big help in tracking down any of the ones that I missed.
 

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OK, so should I just buy a power supply for the drive? how does that work? Can it handle multiple drives? any recommendations?

i am still confused why my better PC has this power draw issue but my old one did not.
 

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  • OS
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Morph000 said:
I'm not a fan of USB powered drives - far better to have a mains powered one.
As people tend to jiggle USB plus when installing and removing them that can cause solder joint failures on the connector which could manifest as a problem after a period of use and things heat up, and could also be responsible for the drive disappearing.
Tip: use a short USB cable (6" long) to plug into rather than the port on your pc. Cheaper to fix than a motherboard...
Bear in mind too that this is an OLD issue AND affects Mac and Linux users too so best to look for a common factor.
Power settings are a red herring as they aren't relevant while transferring data, only when idle.
One thing to check (as per the old days) is for IRQ conflicts - check under device manager / drive controller.
It's best for drives to have a dedicated IRQ rather than share it, and this has and definitely can cause issues.
There was a case where an audio device shared an IRQ with a HDD and the HDD kept disappearing. Switched to a different IRQ and bye-bye problem.
Click to expand...
The menu shows no conflicts.

So it's not the power management settings, it's not the IRQ settings, what is it??? My old PC which was much worse worked fine.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
OK - I may have gotten it. It's not done yet (because the hard drives are several terabytes) but it is consistently transferring at >100mb a second and no longer does any of the jumping or dropping whatsoever.

What I believe the issue is is that specifically the ones at the top of the back of my PC, not just the top proper, have way lower power draw/whatever makes transferring work than the few on the bottom. I don't know the precise difference between these but moving both hard drives to the bottom USB ports made it work. On my old PC all the ones on the back were basically interchangeable.

If it stops and I was wrong I will update again.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
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