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01-30-2010 05:30 PM
I seem to be having the exact same problem this thread is describing. Deleting the root hubs did not do a thing for me. I'm using a Seagate 1.5TB HDD with a NexStar enclosure. The drive works just fine when connected via USB, but freezes everything up when connected via eSATA. It shows up in Disk Management as "Disk 1" with no letter assigned.
Have no clue what to do.
01-31-2010 10:40 AM
I had a similar issue with an esata/usb external drive but only with my desktop PC. It work fine on usb but not esata. Since I didn't have any improtant data on i this device I went into disk management and reformatted the drive while it was connected via esata. Now it works with both esata and usb. Brand new bare drives will have to be initialized before first time use.
02-24-2010 11:18 AM
I have a very similar problem. I have a dv7-1240us that has Vista home premium. I have a Toshiba 1tb external drive that works fine over a usb connection, even connected to the usb port that's shared with the esata port. Connected to the esata port, it installed the drivers and then nothing. Drive isn't listed on "computer", it's not listed under disk management. If I try to restart the computer with the drived hooked up to it via eSata, it won't boot, says something like "no boot device" or something. I upgraded to Windows 7 and it worked perfectly. I decided I didn't like Windows 7 (it wasn't bad, but I had my computer working like I wanted it to on Vista), used the recovery disks to restore the system to Vista, and now it won't work again, same exact thing. The connectors are pushed in fine, the driver works via esata on other computers, I've also tried several different cables. Nothing. I'm about ready to set it on fire.
04-12-2010 05:59 PM
I had the same problem with a Pavillion DV6-1050US, Vista and a Toshiba external HDD with 1.5 TB. It would work fine on USB but not on ESATA. It would freeze at boot if turned on before the start up, show up for 15 seconds in device manager under disk drives and then disappear. It would work under Windows 7 on the same machine so I was sure that it wasn't the cable or the HDD. I spent the last two month figureing this out. Endless chats and talks with incompetent HP technicians/case managers etc. I finally gave in and sent in my laptop. That of course didn't help either. The problem seems to be that, since it is considered an sata drive, it screws up the system thinking it has to boot from the external hdd. And of course, HP won't let you into the BIOS to make changes. But today I found the answer. And it is right on the HP site but of course nobody at HP knows this: I installed the Intel Matrix Storage Controller and voila, the drive is picked up. Works so far like a charm. Let's see how long that last. Btw, I got my laptop back from HP with a diffrent BIOS version than the one I had (and which is newer than the one that is now on the laptop). Maybe that has something to do with. Hope that works for you
09-14-2011 05:12 AM
I had the same problem on my dv7-4090ca and an esata seagate go-flex. I was not able to enable the drive in disc manager but if I had it contected with USB it would work just fine. none of th eabove steps helped me the only thing that I did was Plug in the esata drive go to device manager uninstall the drive then unplug and replug it back in ,I havn't had a problem since.
Hopes this helps
12-27-2011 09:05 PM
I connected with HP Support. They eventually asked me to uninstall USB connections. When I do this I lose control of my cursor therefore I am unable to follow their directions to uninstall each USB connection then have them reinstall same... I am frustrated... I am doing what is requested but my HP system will not allow me to complete your directions... ((
01-04-2013 01:36 PM - edited 01-04-2013 01:42 PM
Here's what worked for me in Win7 64bit (btw, this laptop was upgraded from Vista) :
I did the uninstall of the USB host controllers as previously advised, reboot as required, but no eSATA joy.
I tried a quality eSATA cable (with USB for power) and found eSATA joy, as follows:
With Win7 up and running, I just plugged the quality eSATA cable, and then plugged in the USB cable (thinner power side) to a USB port. eSATA drive recognized as desired
Cheap cable fix: Hold the cheap eSATA cable (that came with my Rosewill RX25-AT-SC external case) in one hand. You will notice that the top and the bottom of the connector is metal, and that on both the top and bottom, there is a little lip/tab out on the end that sticks up. I suppose that little lip/tab is suppose to snap inside the eSATA connector on the laptop and hold the cable in, or help center the connector on the internal pins. Take a small screw driver and bend that little lip up some more. I'm suspecting that the cheap cable is not made quite to eSATA design specs and is not making contact with either the contacts on the cable, or the contacts on the laptop. Maybe the connector in the laptop is not to specs, who knows. Anyway, my cheap cable now has the little lips/tabs maybe 1-2mm (~1/64") off the plastic part of the connector. PLug in the modified cheap cable and plug in USB power. I now have cheap eSATA cable joy.
To contrast, my good cable has almost no space between the lips/tabs and the plastic and just works. Go figure.
If fixing the cheap cable, make sure that you do the "fix" to both ends of the cable (and both the top and bottom of each end).
Hope that helps . . .
03-08-2013 08:46 AM