External Hard Drives Without Their Own Power Supply Are Not Detected

Jan 8, 2012

My desktop does not detect and external hard drive that do not come with their own power supply. I have many externals that also plug into the wall and they are working fine; but whenever it is an external without a plug, i.e. the portable ones they are never found.

They do not show up in Computer Management, so it is not because I did not assign a letter to the drive.

I have tried various things, but I don't know what I should be testing for or looking for. These externals all work on other laptops and other desktops perfectly fine so it is not the externals. When they are plugged into my desktop, they light up normally like they should, but the desktop never detects them. I have tried these externals with the different USB cable I have on hand, but nothing seems to work. It doesn't matter which USB port I plug the device in, it still gives me no response.

I am running a i7 860 on a ASUS P7P55D Pro.

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My computer keeps shutting itself down with the following error message:

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So I bought a UPS in the hopes of controlling the flow of power to my computer. Unfortunately that didn't work so I assumed that the power supply unit must be broken. I have replaced it and I am still getting the crash/error. So I simply disabled the feature on teh motherboard that controls anti-surge protection and now my computer simply crashes and powers down.

I have checked the event logs and noticed this being logged right before the crash every time:

"File System Filter 'aswSnx' (6.0, ‎2012‎-‎03‎-‎07T01:04:05.000000000Z) has successfully loaded and registered with Filter Manager."

dxdiag:
------------------
System Information
------------------
Time of this report: 5/23/2012, 20:17:39
Machine name: ENDUSER-PC

[Code].....

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[code]....

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