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eSATA hard disk drive not detected when hotplugged
Hello,
my situation is the following:
I'm still using Winxp x64 (SP2). My external WD hdd is connected via esata and I regularly switch it on while the computer is running. It is detected by windows within a few seconds. My SATA controller is configured to work in AHCI mode in the BIOS. When I want to switch it off again, I use the HotSwap! Utility to safely remove it (because it is not shown in the native Windows list of removable drives). So far, so good.
Now I installed Windows 7 x64. I try the same thing, but Windows just doesn't detect the drive when I switch it on while the OS is running. It's not even present in the device manager.
It is correctly detected when I switch the external hdd on before powering up the computer.
It is also correctly detected when the following sequence is followed:
1. unplug esata cable and switch off hdd
2. switch on computer and wait until win7 is up and running
3. turn on hdd
4. wait for hdd to spin up (can be heard)
5. plug in esata cable
Then I can also remove it in the Windows removable drive list in the tray icon bar. HOWEVER, when i switch it off again, unplug it, switch it on and plug it in, it is not detected anymore. I have to reboot then. Very strange behaviour.
I also tried the Hotswap! utility and its feature "scan for hardware changes", but it doesn't help.
FYI, the standard microsoft sata ahci driver is currently installed. I searched for an AMD driver, but I can't seem to find one. (It's a SB600 southbridge, the northbridge is amd 770)
Any suggestions would be great.
edit: View my system specs on the lefthand side for more information
Last edited by ischglhanna; 20 Jan 2011 at 12:59. Reason: addition