I have a Dell Studio 15, bought in 2009. It's still working OK but off late, Windows has given couple of Disk Read/Write errors. Before it conks out, I want to upgrade the HDD. Currently its running the Samsung 320GB 5400rpm drive that came in it. Now I have a few queries: Can I put in a SSD ? Will it be thermally similar to a normal HDD or more/less efficient? If SSD isn't a viable option then can you list out a decent 1TB or more, 7200rpm HDD My laptop doubles up as WiFi access point and download machine thus need a reliable drive. Are SSHD any good? Have seen mixed views about it online?
For 1 - You can put an SSD. It would either be a direct fit, or if it's a small form factor, will fit with an adapter (generally supplied). 2 - it would consume much lesser power and put out little to no heat. 3 - For that high a capacity, a small SSD like 128 gig or something should suffice for OS. Invest in an external drive for torrenting. SSDs have come a long way, though not sure how the frequent read would affect them.
I've been using an SSD for almost 5 years now, no issues whatsoever. Regarding fitment, almost all SATA SSDs are small form factor, the one used in laptops. Thickness might be a minor issue though, so just check the clearance on your laptop and then see the thickness of the particular SSD you plan to buy. Given, that your laptop is old, I would not invest in a large capacity HDD, rather get an external and a decent SSD, prices have come down on them quite a bit. When you decide to get rid of the laptop, you can keep the SSD and the external drive; put in your old drive and sell it as is.