09-08-2010 06:10 AM
According to the quickspecs on your notebook they only list 5400RPM drives. See the section on storage.
The parts list in your service manual only lists 5400 RPM drives. See Chapter 3, page 17.
On the nc6400 for example, there are both 5400 and 7200 RPM HDD's available.
That would lead me to believe that 7200 RPM HDD's are not supported in a 6820s.
I don't know enough personally about what would happen if you installed a 7200 RPM HDD in your notebook. Would it just run at 5400 RPM, 7200 RPM or not work at all?
09-08-2010 06:28 AM - edited 09-08-2010 06:30 AM
I think it is not like in the memory case, that if you mount 667 memories and they run if required at 533. A HDD can spin only at 5400 if manufactured for 5400, or 7200 if so.
I'm thinking that the manual specifies, I hope, the only possible configurations HP delivers the 6820 laptop, not the supported HDD specifications. For the capacity there might be a problem but I don't see what could be the problem if it is at 5400 or at 7200 if the interface is still SATA.
But I don't want to buy one and than to see that it is not working and I don't have anybody to buy it from me and I don't have a store where we can give it a try. The second chance, if it is not working ,would be to buy an enclosure and use it as an external storage, but in this case I better buy directly an external HDD.
09-08-2010 07:53 AM
What you write makes sense. I guess it is up to you if you want to take the chance. It might work. I can share a couple personal examples...I still have an old Dell C610 notebook. It came with a 4200 RPM IDE HDD. The HDD failed, and I didn't even think of what would happen if I didn't buy another 4200 RPM drive. I just went and bought a 60 GB 5400 RPM IDE notebook drive and it worked just fine and the computer's response seemed faster due to the higher RPM.
Also, I have put in 7200 RPM drives in old desktops that had 5400 RPM drives, and never experienced a problem.
09-30-2010 11:44 PM - edited 09-30-2010 11:45 PM
I tried a 320 GB / 7200 rpm / 16 MB buffer WD Black Edition and it works.
I just finished last night installing it, so there is no 250 GB / 5400 rpm limitation on this notebook
Thanks for support