Hi,

My work has now moved vendor for its hardware. The problem I have is that now we have two types of hardware my OSD image requires updating.

Everything works fine (SATA working , thanks to article from this forum ) other that an issue with the USB Root Hub - Power Management Settings.

What I was hoping for is a reg setting to disbale the "USB Root Hub - Power Management Settings - allow the computer to turn off this device to save power" option. i.e uncheck this box accross multiple hardware machines.

I would then be able to apply this as reg fix as a post install through OSD , so it shouldn't matter on the make of machine / hardware type.

Thanks in advance

Stuart

No idea. Search the web, there is a lot of registry settings information. And if you don't find it and you know how to change the setting manually, use Process Monitor to try to identify the reg key this setting changes.

What I was hoping for is a reg setting to disbale the "USB Root Hub - Power Management Settings - allow the computer to turn off this device to save power" option. i.e uncheck this box accross multiple hardware machines.

I would then be able to apply this as reg fix as a post install through OSD , so it shouldn't matter on the make of machine / hardware type.

Since this is a registry tweak, I suggest u try monitor thru Regshot Unicode

A quick check reveal my test m/c (XP) registry key is at

HKLM\SYSTEM\ControlSet001\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}\0003\HcDisableSelectiveSuspend: 0x00000001

HKLM\SYSTEM\CurrentControlSet\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}\0003\HcDisableSelectiveSuspend: 0x00000001

Uncheck "Allow the computer to turn off this device to save power." will create these 2 keys on my own test m/c. I'm unsure it is standard or m/c dependant.

Sorry, I didn't realise I'm double posting same post.

Edited November 25, 200817 yr by Geej

What I was hoping for is a reg setting to disbale the "USB Root Hub - Power Management Settings - allow the computer to turn off this device to save power" option. i.e uncheck this box accross multiple hardware machines.

I would then be able to apply this as reg fix as a post install through OSD , so it shouldn't matter on the make of machine / hardware type.

Since this is a registry tweak, I suggest u try monitor thru Regshot Unicode

A quick check reveal my test m/c (XP) registry key is at

HKLM\SYSTEM\ControlSet001\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}\0003\HcDisableSelectiveSuspend: 0x00000001

HKLM\SYSTEM\CurrentControlSet\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}\0003\HcDisableSelectiveSuspend: 0x00000001

Uncheck "Allow the computer to turn off this device to save power." will create these 2 keys on my own test m/c. I'm unsure it is standard or m/c dependant.

Thanks for the reply. Not used that reg tool before, very handy. Been trying with regmon but to much info in logs. Just need to test on a few other machines but they all look the same other than some going from 0000 to 0007.

Cheers