[External HDD] not recognized in e-SATA Solved

Question

Hello,

I bought a Seagate 250GB SATA hard drive with a Vantec NexStar3 external enclosure.

The drive works perfectly (I use it every day). It is recognized without any problem via USB. However, when I connect it via e-SATA (I/O cable plugged into a SATA port on my ABIT KN8 Ultra motherboard and the external cable connected to this interface), it is not recognized.

I should note that there have been instances where the drive appeared, but in a completely random manner. It has also happened that the e-SATA connection prevents Windows from booting.

Are there any tweaks to make in the BIOS? Is the external cable or the I/O cable faulty?

Thank you in advance for your help.

Configuration: Windows XP Firefox 2.0.0.1

steph57 · Accepted Answer

Hello,

since I also have a 500 GB E-SATA external drive, I have the same issue: the drive is not recognized under Vista.
To solve this problem, you just need to go to the Device Manager and click on "Scan for hardware changes," and there the drive is recognized immediately.

Madyas · Answer

up

Madyas · Answer

No one to help me?

RePenTi · Answer

I have the same problem... Except that my Vantex Nexstar3 had a pre-installed 500GB hard drive (Samsung).

There’s no problem via USB.
Through eSATA (using the provided SATA->eSATA bracket with the Vantec), it’s not only unrecognized, the LED doesn’t light up (no signal between the PC and the HDD?) and it also crashes my entire system after a few seconds, forcing me to reboot abruptly.

Is the eSATA port on the case faulty? Is the eSATA-SATA bracket defective? Is there something that needs to be enabled in the BIOS (but I don’t think so; my main HDD is SATA and doesn’t have issues. Also, if I remove the Samsung HDD from the Vantec and connect it directly via SATA to my motherboard)?

If anyone has any ideas, I'm all ears.

letoutim · Answer

Hello, I had the same problem with my Western Digital My Book 500GB external hard drive. The issue is not in the BIOS; it's a cable problem. For me, the eSATA cable was not connecting well at the back of the hard drive. By pressing on it, the drive was then recognized. I reshaped the head of my cable with a cutter so that it could go in a bit further. Since then, it's been working perfectly.

X 15 · Answer

I connected an external hard drive (My Book Premium ES Edition 320 Go) via eSATA, with the right cable, this drive works normally with a USB connection, but it is not recognized in the BIOS (Asus P5W DH Deluxe board).
The indicator light is on.

Can you help me please, thank you!

letoutim · Answer

It may seem strange, but if the disk is recognized via USB, and if the E-sata is properly enabled in the BIOS, the problem is probably with the cable, just like it was for me. Try pressing on the cable as if to push it a bit further into the back of the hard drive, and after a few seconds, see if the disk appears in Explorer. As for the indicator light, in my case with my "My Book," it lights up even when the disk is not connected, which just means that it is powered on.

Aur3 · Answer

Hi everyone,   I have the same problem: Western Digital 500G eSata external hard drive  No problem in USB, but in eSata, the blue light is on but the hard drive is not recognized by my computer...   Like you, I already have a hard drive connected via SATA... so it's not a driver issue!  However, I had to add a SATA/eSATA adapter to switch from my internal SATA port to external eSATA, that might be the issue!  Tonight I will try what "letoutim" did: "It's a cable problem, for me at the back of the hard drive the eSATA cable wasn't connecting well, by pressing on it the drive was recognized, I reshaped the end of my cable with a cutter so that it could fit in a bit further, since then it's been great"   I'll keep you updated  ++

Bigjefffish · Answer

You all seem to have a slightly different problem. Before getting to the "reworking" of the cables, have you tried turning on your HDD before the PC?
It seems that eSATA is indeed not hot-pluggable, according to the information I've gathered from forums.
I have a Samsung HDD in an Antec MX-1 enclosure. It works very well via eSATA if I turn it on before the PC. However, if I turn it on after Windows has started, it is simply not recognized and does not appear in the device manager.
I don't think this is related to the eSATA bracket; it apparently is just an adapter (without electronics) to connect the two types of ports together.
Have a nice day.

letoutim · Answer

It is indeed possible that the problems are different. In my case, hot-swapping the hard drive does not pose a problem, and I detected the issue by slightly moving the cable behind the hard drive. However, after putting the PC into hibernation, I sometimes have to reboot the PC to be able to find my hard drive.

Aur3 · Answer

Well... moving the cable doesn't change anything and turning on the HDD before the PC doesn't work either... I will continue my research and thanks for all these ideas! ++

echtpapik · Answer

Hello everyone.

I found your topic on the eSATA external hard drive not being recognized after experiencing the same issue myself, and from what I've read, it seems that this phenomenon can have various origins. However, I wanted to share my case to broaden the possible solutions.

My motherboard is an ASUS P5B-E, I'm using XP SP2, and like Bigjefffish, my external enclosure is an Antec MX-1. I also installed a 500GB drive, mine is a Western Digital. For me too, the external drive is recognized properly in eSATA if I turn it on before the PC (actually, before booting, I think), but today I turned it on after about a quarter of an hour of using the PC and nothing appeared! Nothing shows up in My Computer apart from what is usually there. I then tried something that worked for me: I hot unplugged (since that's, according to manufacturers, one of the advantages of eSATA!) the eSATA cable that was connected to the port of the same name at the back of the PC (for me, directly integrated into the motherboard) and replugged it in the same spot five or ten seconds later. And there, like magic, instantly, the external hard drive from the enclosure was recognized and appeared in My Computer!

So, it’s certainly not as convenient as it being recognized just by powering on the external enclosure, but I still think it's better than having to close everything we were doing and reboot Windows. Finally, I don’t know if what worked for me will work for others with different PC or external drive configurations, but I still wanted to contribute my little piece to the puzzle!

X 15 · Answer

I used both "methods" proposed.

1) Try to make contact by moving the connectors.

2) Hot plug the drive.

Nothing appears in the workstation...

All new ideas are welcome, thank you.

Are eSata cables reliable? I find the connectors less convenient than USB.

X 15

syl · Answer

I have problems with my 500GB WD external hard drive, it is not recognized by Vista via eSATA. What should I do???

syl · Answer

I got the answer to the problem, motherboards are not yet able to support Esata, the only way is to go through a PCI card.

letoutim · Answer

I need you to explain to me how my E SATA hard drive works since I have no issues with a 500GB "My Book" and a P6N SLI Platinum.

kara_bou · Answer

Hello, in the same type of issues: my external drive with an e-sata enclosure is not recognized when I hot plug it (Vista), but if I leave it connected and restart, it will be recognized. Is this normal? Is there anything to do so that I don’t have to restart every time I want to connect my external hard drive, which is supposed to be designed for that, to plug it in or not?

cat54 · Answer

Hello everyone,
In my case, the external eSATA disk issue was caused by an outdated BIOS version. ASUS A8N SLI Premium motherboard, 18 months old. As in many cases, the disk works via USB2 but not via SATA. The BIOS update resolved the issue. I believe this is common with ASUS motherboards.
Good luck to everyone!

kara_bou · Answer

Thank you cat54, I will test it when I get home on my desktop, I indeed have an Asus K8N so I will try the BIOS update.

kara_bou · Answer

That sounds interesting :), I won't be home for another 3 weeks, I'll try, thank you.

irenachris · Answer

Hello and a big thank you to stepht57... it works...  As I have an external 500 GB E-SATA drive myself, I have the same issue, the drive not recognized under Vista. To solve this problem, you simply need to go to the device manager and click on "Scan for hardware changes," and there the drive is recognized immediately.

dead34 · Answer

Hello, I have the same problem   I have Vista Pro   In Device Manager, I don't have "Scan for hardware changes"   Where do you find that?

dead34 · Answer

I managed to find my hard drive in eSATA yesterday by switching the mode from AHCI (which I had set previously when starting the PC) to IDE in the BIOS for the JMicron controller.   This morning when I turned on my computer, it froze.   I have to unplug my hard drive for it to restart, but now there's no hard drive detected.   Whether I unplug the drive hot or cold, nothing changes.   I don't understand what's going on anymore!!   I should specify that my hard drive is still detected by the BIOS at startup, just like the DVD-RW drives in IDE, which means that JMicron is active, the driver is up to date, and my cable is not the issue.    To be continued.

Closterpat · Answer

Hello everyone

I'm contributing my share to the building!
First of all, my setup
Asus P5B Deluxe motherboard
Core2Duo 6600 processor with 2GB of RAM
3 internal Sata2 hard drives
1 external Sata2 hard drive
Windows XP SP2
I installed a 250GB Maxtor Sata2 hard drive in an AC Ryan eSata/USB2 enclosure, which had been working until now in a USB2 enclosure, and I encountered the same issues.
The drive was only recognized if I powered it on before the CPU, and if I turned it off without shutting down the PC or if I put the PC into sleep mode, the drive was no longer recognized in Explorer.
After checking the motherboard manual, I reinstalled the driver for the JMicron JMB36X RAID controller even though I wasn't using my hard drives in a RAID configuration, and I can now access my hard drive even if I didn’t turn it on before the CPU, and I can recover it if I put the PC to sleep.
I also adjusted the IDE configuration in the BIOS:
Primary
IDE configuration
SATA configuration: Enhanced
Configure SATA As: AHCI (enables the storage driver to activate advanced Serial ATA functions)
It seems (a simple personal analysis) that the eSata port on the motherboard was originally intended for RAID operation, and that installing the JMicron driver and adjusting the BIOS without configuring the disk in RAID is enough to fix the issue.
Hoping I was helpful
Cheers everyone

dead34 · Answer

Hello   I have been following your information closely   I installed the JMB36X RAID driver   but it doesn't work every time (it freezes either in sleep mode or on the desktop)   I didn’t fully understand the BIOS:   you set in primary:  IDE config:   SATA config: enhanced  SATA config as: AHCI   but in advanced   JMicron controller: enabled    controller mode? in IDE or AHCI or RAID   I set it to IDE then to AHCI and my PC won’t boot Vista?

Closterpat · Answer

Hello,  My apologies for the BIOS, I've been lazy to restart the machine and check in the setup!  In Advanced, it's indeed JMicron SATA/PATA Controller set to Enabled JMicron SATA Controller mode set to AHCI, because if you set it to RAID without configuring your drives in RAID, it shouldn't work at startup That said, I’m running XP, I’ll do a setup check at startup and I'll confirm that to you tomorrow  See you later

Closterpat · Answer

Re  I confirm my configuration  Main SATA configuration: Enhanced SATA configuration as IDE (if I set it to AHCI, it crashes on startup) Advanced: as previously indicated  For the sleep mode, I have the same thing; I just need to turn off and back on the power supply (I put a switch on the cable) and Explorer recognizes it  See you soon

dead34 · Answer

thank you for your help   I have configured the BIOS as you told me   I can see my hard drive   but there's a problem, after about 15 minutes my computer freezes on the desktop, no mouse or keyboard   I unplug the hard drive, but it doesn't change anything, I have to reset the computer

Closterpat · Answer

Hello  Have you unplugged the eSATA connection or turned the power off and on while remaining connected? Otherwise, if you have a wireless USB mouse and keyboard, uninstalling and reinstalling the software may fix the problem, especially if it's Logitech  See you later

dead34 · Answer

When I unplug the hard drive, I am able to get the keyboard and mouse (which are Logitech USB/PS2 and not wireless) working, otherwise the PC freezes or the mouse moves with a delay?  Question: if the hard drive is not connected when I turn on the PC (and thus not detected by the BIOS), is it not detected if I plug it in afterwards?  Is that normal?

Closterpat · Answer

Hello  Have you installed the Jmicron driver with the motherboard CD? If not, please give me your exact configuration and the reference of your motherboard so I can retrieve the manual.  You also need to provide me with your definition of how your hard drive is connected; to me, the connection is about the power-up, which I differentiate from the connection itself, even though it shouldn't have an impact.  For my part, if I don't power on the HDD before the PC, it gets recognized when I turn it on, even though it's a bit slower than through USB connection.  In any case, you should check the installation of your motherboard drivers and possibly update the BIOS if your motherboard allows it.   See you soon.

dead34 · Answer

Motherboard name Asus P5B Deluxe, CPU 6600 2.4g, 2g RAM PC6400 Samsung, GPU 7950GT Nvidia Motherboard ID 64-0711-000001-00101111-092906-Intel-BW$A0483035_BIOS DATE: 09/29/06 17:16:49 VER: 08.00.12  when I say connect = power connected to the hard drive and SATA cable connected from the hard drive to the PC, hard drive light on  I connect the eSATA cable to the hard drive and the PC and the power cable to the outlet: the hard drive light turns on (Seagate Pro 320g)  when the PC starts, it detects the hard drive if it is connected along with my 2 DVD drives and burner (then if I press the delete key I enter the BIOS for possible modifications)  I installed the latest JMicron driver (20/10) from jmicron.com, specifically it's the JMB363 driver that is concerned  how to check the installation of the other drivers? is it necessary since I have no issues without the hard drive connected  my BIOS date is from 2006 version 611  I don't know how to upgrade it and moreover my PC is overclocked to 3.4g  now it's worse, the hard drive is sometimes not detected at start-up, but even if it is detected in both cases, the computer only loads Vista if I disconnect the hard drive: the hard drive light flashes and the PC runs without loading  it locks the PC or the mouse/keyboard if I connect it while the PC is on

Closterpat · Answer

Good evening  We have the same hardware configuration except for Windows (XP SP2) and the fact that I’m running with 3 SATA drives: one 80GB for the system, two 250GB for backups plus one eSATA. I did everything in order, installed the JM driver, then reinstalled all the drivers using the motherboard CD assistant Flashing the BIOS with the Asus Update utility provided on the CD isn't a specific issue if your internet connection is stable and if you don't have any interruptions during the procedure (best with a UPS), my BIOS is an AMI version 1221 from 01/11/2007 Intel-BW chipset Uninstalling and reinstalling keyboard and mouse drivers. For the manual, I downloaded it from france.asus.com using the following link http://support.asus.com/download/download.aspx?SLanguage=en-us Now everything works correctly except for this slight delay in display in Explorer if I turn on eSATA while the PC is running, but the performance is much better with eSATA (4 to 5 times higher than USB) and the requirement to turn off and on the eSATA after waking from sleep. Despite everything, I had to reinstall the system several times (thanks Ghost!) before achieving this result, your problem may come from some "subtlety" in Vista and I’m stuck there (I only have the Vista Transformation Pack!). I don't think overclocking is a problem, but as a last resort, you can revert to the standard settings to see if Vista stabilizes again Hang in there!  See you later

Closterpat · Answer

Hello You can also check the boot priority of the HDD in the BIOS if the system doesn't start; it might be that the BIOS isn't selecting the correct HDD at startup. Setup Boot Boot priority of disks 1 Floppy Drive if you have a floppy drive, otherwise your system HDD 2 your system HDD 3 your CD drive (set this to 1 if you are using the Windows installation CD or if you are using a disk image) 4 your Esata HDD if you turned it on before the PC  See you later

dead34 · Answer

Hello   I reinstalled the Jmicron driver and the motherboard + keyboard and mouse drivers as you told me  today it works, I can see my hard drive in My Computer (equivalent to Explorer in XP), both by plugging it in before starting the PC or afterwards.   However, if I want to access the content, I have to wait for the PC to load; in my opinion, this is due to the JMB363 driver.  Once the hard drive details are displayed with its directories, accessing the hard drive and copying files is great!   When on standby, I can find the hard drive with slowness (without having to, like you, cut the power) and there’s a short moment when the mouse freezes and then resumes. Sometimes Vista tells me that it has lost the display driver (?) and has restored it!   Maybe some drivers are still not up to date, but whatever!   Similarly, accessing other applications or the internal hard drive can be a bit slower.   When I first plugged it in, Vista indicated that it had loaded the driver, recognized my hard drive through this driver without me needing to download the JMB driver (the message was: the driver has been loaded for this hard drive), which did not raise any alarm for me; I was even able to work normally and transfer files    This recognition mode by Jmicron, from what I read, is unclear: there is an incompatibility with certain disk controllers  for hot-plugging for motherboards equipped with Intel controllers (it's ok for motherboards equipped with Nvidiaforce circuits with Intel or AMD CPUs)    Thank you for your help, which is incredibly precious   See you later

squall049 · Answer

Hello there  I have the same configuration as you, that is to say: Asus P5B deluxe Intel core 2 duo E6600 2GB of Corsair RAM. Windows Vista  My problem is as follows, like you, there is no problem when I am in USB2 mode? But as soon as I want to switch to eSATA, things get complicated ... First of all, my external hard drive, Western Digital MyBook 500 GB, was not recognized. I inquired and then installed the JMicron drivers. Currently, my disk is recognized under Windows. I feel like it's slightly slowing down my system, but the most annoying part is that when I want to copy files onto it, the transfer doesn't work; it starts and progresses, and then suddenly stops, the LEDs blink ... I configured the BIOS as explained earlier, and I'm a bit lost here ...

squall049 · Answer

I just solved the problem, Jmicron drivers should be avoided, let Windows detect it on its own, it does it very well!!!  See you soon.

patrice36 · Answer

Hello Connect the eSATA cable to the icy box and power on the hard drive Your case and Windows Vista will recognize it, it worked for me. Samsung 500GB hard drive

rama94 · Answer

hello, same problem as some of you: with a Seagate 500GB 32MB cache & an X-Craft R360 enclosure, When I turn it on before the PC: no problem, it is recognized under XP SP2. When I turn it on after the PC; I have to go through the device manager and click on "search for hardware changes" ... it is then recognized immediately. Without this last step, there's no way for it to be recognized hot (hot plug) .. whether I unplug the eSATA cable and replug it doesn't change anything.  There you go, hoping to have shed some light for certain readers ;-)

kara_bou · Answer

Using hotswap (free) compatible with Vista or XP, a red icon appears in the taskbar similar to the green one from Windows for removing USB drives. By right-clicking, you get the "scan for hardware changes," which avoids having to go into the device manager, and it allows you to safely remove SATA drives (non-system) and external e-SATA drives in the same way, with a left click bringing up the list of drives just like for the USB drives in Windows.

piwi63 · Answer

My WD external hard drive was perfectly recognized after I "cut" my cable to make sure it was properly inserted: indeed, the cover of the connection ports behind the drive has somewhat narrow openings that prevent a proper connection: it was with my second cable that I realized this!

mathmatah · Answer

Good evening, Discovering your discussion topic and seeing that plenty of tips are given to allow Vista to recognize your external hard drive via eSATA (hot and cold), I can confirm that the disk must be powered on before starting the computer; then if you forget to do this and to avoid unnecessary restarts, I simply advise you to:  - click on "Start"  - click on "Control Panel"  - click on "System"  - click on "Device Manager" (in the upper right of your page)  - in the Device Manager console, first click on the icon of your PC (a single click is enough, it’s just a selection) then go to the top menu to "Action".  - there, you will find the option "Scan for hardware changes", click on it and magically, your external hard drive will appear in your manager's list and in your usual explorer. By providing all these details, I did not mean to treat you like beginners but the simplest way is to be precise to conclude a topic.  BYE

Reddygo · Answer

Hi everyone,  I have 2 PCs, the first one is an E8400 mounted on an Asus Maximus Extreme with Vista Ultimate 64-bit, and my second one is a Q6600 mounted on an Asus P5K Premium WI-FI with Vista Ultimate 64-bit.  On the first one, it doesn't recognize my WD 160G SATA hard drive in a NexStar3 enclosure. I’ve tried everything I know and everything you guys (or girls) have written. And it still doesn't see it, however, my second one sees it just fine!!!! I think my connectors are defective or maybe not properly adjusted via the bracket that comes with the motherboard. Maybe it’s a metal pin that is coming into contact with the connector... I found an extra e-SATA bracket provided with the motherboard. I will try that and keep you updated soon...

malobert · Answer

Browsing through various forums regarding the eSATA external hard drive connection issue, I can confirm:  1 - There is indeed a cable issue: you need to cut about 1mm of the plastic that surrounds the connectors for them to fit properly.  2 - If the eSATA external hard drive is connected to the computer and is turned off when the computer starts up, Windows does not boot: you must turn it on FIRST. If you turn it on afterward and do not turn off the computer, but restart it with a hot reset, the eSATA external hard drive is not recognized by Windows.  3 - This is where the "HotSwap!" utility becomes very useful and allows you to perform "Scan for hardware changes" without going through "Start/Control Panel/System/Device Manager...". Link: http://mysite.verizon.net/kaakoon/hotswap/index_enu.htm This utility also serves, like the USB one, to safely remove the eSATA external hard drive.  I also confirm that an eSATA external hard drive can be connected hot like USB.  Hardware: Intel Dualcore 6280, MSI P35 motherboard, WD My Book 500 eSATA external hard drive.

Elgiourd · Answer

A big thank you, it was that simple!!!

Elgiourd · Answer

Device Manager / search for changes in hardware and then, like magic, it appears in the workstation... Have a nice day everyone.

Melkiok · Answer

Hello everyone,   I had the same kind of problem where the disk was not recognized when plugged in via eSATA or there was a sudden reboot of the machine, while it worked perfectly fine via USB.   I resolved the issue in the following way:  On this type of drive, there is a slot to insert a jumper  the 4 pins are used to determine the transfer rate...   jumper on the 2 left pins: normal operation (3Gbps) jumper on the 2 right pins: limit data transfer rate (1.5Gbps)  However, if the motherboard does not support SATA 2 and you do not place the jumper to limit the transfer rate, then everything crashes.  For me, since I put the jumper in place, I have had no more reboot issues or the PC searching for the disk in vain; it is fully functional.  To summarize:  This concerns motherboard compatibility SATA I => place the jumper in the 150gb position. and otherwise, on 300gb if compatible with SATA II.   There you go, hoping this will resolve the issue.

xam1985 · Answer

Honestly, I don't understand much, I have an Asus A7V880 that's at least 3 years old.

Here's what’s happening:

When I connect it externally with the SATA cable and turn it on before booting the PC, I don’t see any SATA drives recognized, neither the internal one nor the external one.

If I start the external enclosure while my PC is already running, my PC becomes unresponsive, no mouse or keyboard.

What works:

Connecting the external drive via USB.
Connecting the internal drive.

That's it, if anyone has had the same issue and resolved it, I'd be grateful. (Win XP pro SP2) I haven't attempted to flash the BIOS as it doesn't sound good to me.

g:nico · Answer

I found, through other forums, a trick to avoid having to restart the PC when I turn on the HD connected via eSata after booting the PC: you need to go to the Device Manager in XP, right-click on the name of the computer, where you can choose: "Scan for hardware changes"; the HD is immediately recognized and the partitions appear in Windows Explorer.

fr_pero · Answer

Big up to steph57  Your solution worked for me too  thank you

Job314 · Answer

For Vista, there is a patch https://support.microsoft.com/en-us/help/950186

2flow4u · Answer

Hello  After reading your comments, I realize that I'm not the only one having problems with my external hard drive. I have a LaCie d2 QUADRA 1TB eSATA and all that... So same problem: USB2 hot --> OK!!!  eSATA --> NOTHING!!!  But my hard drive is properly recognized in the BIOS for several reasons:  - eSATA Active in BIOS - Hard drive mounting OK during BIOS boot!!!  I have Vista SP1, and in Explorer, nothing...  I go back into my BIOS and notice in the settings for my SATA drives that the eSATA is set to AHCI??? what is that??? I think that’s the setting I want for the hard drive, not thinking too much about it I set it to IDE...  Reboot and I follow the procedure through the device manager  - Right-click on "Computer" -> Properties -> left menu "Advanced system settings" - Hardware tab -> click on Device Manager - Right-click on my computer name (usually PC-DE-TOTO) and click on "Scan for hardware changes"... let it do its thing, several times the display will refresh and at the bottom in the systray you will see that the mounting procedure is working and declares that the device is OK...  ... and there it works, my hard drive is mounted!!! BUT when I disconnect it hot, it crashes my explorer!!! and after reboot, with the HD mounted hot, I have to do the same device manager trick again... I think it’s more of a warm mounting that needs to be done!!! ;-)  So I try with my front connectors (I have an Antec case) and there it’s a disaster, everything crashes... I think a little update of my SATA controller wouldn’t hurt... so I go here: https://www.touslesdrivers.com/index.php?v_page=3&v_code=3345  and I preferred this one: Drivers Jmicron JMB36x/JMB37x eSATA Write Cache Enabled version R1.17.48.15  that you will find HERE: https://www.touslesdrivers.com/index.php?v_page=23&v_code=25202  no change, my explorer still crashes and impossible to relaunch it with a new task from the task manager... grrrrrrr... so I turn off my hard drive and unplug it from my front panel... while I light a cigarette (SMOKING KILLS!!!) and my explorer reappears!!!  I reconnect my hard drive directly to the back of my tower (straight on the motherboard) and there... well it mounts hot like it should!!! good!  I unplug it hot --> everything goes well!! it’s properly "disconnected" from my explorer (the button on my LaCie is set to auto)  I plug it back in hot --> F5 (refresh) in my explorer --> HD mounted!!!  So YOU JUST HAVE TO UPDATE YOUR JM MICRON CONTROLLER for those who have this one!!!

ril · Answer

Download the latest driver for eSATA by snooping around here ftp://driver.jmicron.com.tw/  At Windows startup, you will see that the disk is recognized even before the login page...

fox D loulou · Answer

I also had an issue with a self-powered external hard drive not being detected via eSATA with Vista. It's a Verbatim Model #47577. That said, I don't think the brand and model are to blame.  To be specific, when connecting it to the self-powered eSATA port, my external hard drive powered on, but there was no detection. My problem actually stemmed from the fact that I had enabled User Account Control, which apparently prevented its detection, even in the Device Manager. By logging into the administrator account, I was then able to get it detected, which led to the driver installation.  I can now connect and disconnect it hot, and it starts up on its own.

[External HDD] not recognized in e-SATA

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