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Is it normal for IDE to USB adapters to fail to start due to lack of power from the USB even when the IDE DVD drive has already it's own power source?

This same adapter works with SATA Hard Disk Drives (also externally powered).

#IDE #USB #SATA #ATA #ATAPI #SCSI #Adapters #IDEtoUSB

(Edit: Only tested DVD Drive in master position)

Jul 23, 2023 at 10:28pmWeb
Show thread Noma Jul 23, 2023
@Genstar depends how it's set up?
I could see the adapter getting confused at there being no power drawn, or too much power present for what it should be able to do
Show threadgenstar.serviceJul 23, 2023
@Nomaxice This is from the back of the drive.
Show threadgenstar.serviceJul 23, 2023
@Nomaxice And this is how the complete setup looks like from above.
Show thread Noma Jul 23, 2023
@Genstar Ooooh those adapters
They may not work well with cd drives but yeah, I guess other than trying between plugging into a USB 2 and 3 to see if it changes anything...
It legitimately did help for me with a device once so you never know
Otherwise... Not too sure
Show threadgenstar.serviceJul 23, 2023

@Nomaxice Just saw this post, I think I didn't get the notification.

Anyways, swapping between USB 3.0 and USB 2.0 didn't help in this case, I had tried this already.

Show threadgenstar.serviceJul 23, 2023

@Nomaxice Apparently, the adapter I bought seems to have a pretty old chipset. Going by it's idVendor (152d) and it's idProduct (2338), it seems to be a JMicron JM20337.

Some reference can be found here:
https://www.jmicron.com/file/download/911/JM20337.pdf
(The copyright on the document says 2003)

Show threadgenstar.serviceJul 23, 2023

@Nomaxice

I first connect the adapter and the power brick to the drive.
Next I connect the power brick to the power strip.
Then I let the drive warm up.
When it's done, I connect the adapter to the laptop.

dmesg output:
http://0x0.st/HefJ.txt

EDIT: more dmesg output
http://0x0.st/HefE.002.txt

EDIT 2: dmesg when using with USB 2.0
http://0x0.st/HefF.003.txt