Thinkpads Forum

My T60p came with a DVD Multi which shows in device manager as HL-DT-ST-DVDRAM-GSA-4083N or in Explorer as DVD-RAM Drive D:.

If I want to remove the drive from the Ultrabay either by the 'Safely Remove Hardware' task or from Device Manager by disabling or uninstalling the drive, or by releasing the hardware catch, then XP gets into trouble. First the drive letter remains in Explorer, usually as D: in my case, even though the drive is dropped from Disk Manager, but secondly the CPU utilization goes up to 50% (1 cpu at 100%) consumed by a system process and stays there. In the case I used Device Manager then the Device Manager application hangs.

The Ultrabay is now unusable until reboot.

This is with XP Professional SP2. I've tried both AHCI and compatibility mode for the SATA controller.

Anyone else seen this or got any ideas?

Mine (T60 2007-63U w/Multi-burner) doesn't do this.

I just used "Safely remove hardware" from the taskbar. The drive letter disappears and CPU is normal. When I plug it back in, the drive letter comes back and everything is normal.

astro wrote:Mine (T60 2007-63U w/Multi-burner) doesn't do this.

I just used "Safely remove hardware" from the taskbar. The drive letter disappears and CPU is normal. When I plug it back in, the drive letter comes back and everything is normal.

Thanks for that info. I did some digging, looking at drivers etc and saw Sonic DLA was active. I figured out that this was the cause of the problem and removed it from the system. Now everything is fine. What is Sonic DLA? Who cares.

toto wrote:What is Sonic DLA? Who cares.

Ah yes, well-spotted -- I had un-installed that one.

"DLA" = "Drive Letter Access"

It is like that DirectCD technology that Microsoft originally introduced, let's you drag n' drop files onto your burner drive. I personally don't see the point -- I'd rather "master" a CD and write it once. Don't have much faith in using a CD as RAM.