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Are there some sure fire ways to visually distinguish the difference between hard drive circuit boards vs disk drive circuit boards?

When I look at a board and the connector is SCSI, its a no brainer hard drive board, right? Where I get confused is with the IDE connections and the SATA connections. I know there is a HUGE value difference. Thanks for your help all!

Aside from experience... Look for a large single black IC chip. Those are cd/DVD boards.
The only place I've come across where a cd/DVD board goes for anything else is plextor drives which some have boards that go telco. But they're easy to tell because they look like large hard drive boards, lots of CMCs ICs etc and have two large square DVD controller chips.


You can't judge by port alone; many hard drives, optical drives and many many tape drives use scsi

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