does internal HDD required power supplies

[Keshav31]

I have revived a Toshiba satellite laptop for repairing but I don't find any power supplies connected to internal HDD

 

[SchizTech]

I'm not quite sure what you mean, but all the power in a laptop goes through the motherboard. SATA connectors in a laptop are integrated in such a way that they provide power as well as data directly through the board. What problem are you having? If the HDD isn't being seen, cross-test that drive in a different system and/or a different HDD in that laptop.

 

[snowctrl]

Then it won't work

All hard drives require power - they require a power connector and a data connector

 

[drtweak]

In a laptop it looks like one big connector but it gives it power and sata. There is only one port and one spot on laptops where hard drives go.

 

[SchizTech]

Then it won't work

All hard drives require power - they require a power connector and a data connector

The OP is asking about a laptop. As I said, the power to laptop HDD are routed through the mobo. The SATA power connector is physically the same as in a desktop but not fed by any separate cable.