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I have a Toshiba Qosmio x870-144. It has a 128GB SSD and a 1TB 5400 RPM HDD. I have a spare Seagate 750GB Hybrid 7200rpm.

Can I replace the 1TB HDD with the Seagate?
Will I get better performance?
Can the laptop handle this combination of SSD and Hybrid drive?

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Review of the 500GB model here – Brad Patton Apr 26 '13 at 13:18
up vote 1 down vote accepted

Yes, you can replace the 1 TB HDD with the 750 GB Seagate.

You will probaly gain some speed by replacing an average laptop (power optimised) drive with a drive which focuses more on performance. Even if you ignore the hybrid part of the Seagate hybrid. (Mainly the 5400 RPM vs 7200 RPM difference).

I do not expect the Seagate to be much faster then any other 7200 RPM drive. This because the hybrids use a trick where often accessed parts are cached on the SSD. Often accessed is usually things like the OS, Firefox/chrome/thunderbird/.... etc etc. It traditionally does not include movies. (Unlike you are someone who watches the same movie everyday).

This means that the traditional way of a SD + HDD combination stores the OS and programs on the SSD, and media data on the large (slower, but cheaper) spinning HDD. Thus there is not more 'low hanging fruit' you can gain by adding a second SSD or a hybrid with a SSD cache.

You will still get the additional speed from a faster drive though. And same generation 7200 RPM drives are faster then same generation 5400 RPM drives.

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yes it is possible & will increase the performance, but not by much margin. Because your OS i think is installed on the ssd & so as apps. but it will definitely help in increasing cost

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