So, if I decide to install a second internal HD, is it simply a matter of plugging in a connector that I assume will be inside, somewhere, of the new Dell XPS 8900 ?
You need 2 cables--one for power and one for data. The power cable connects the drive to your power supply. The data cable connects the drive to the motherboard. The cables look different and are not interchangeable.
You'd shut the PC completely off, open the case, locate a drive bay (location to install the drive), attach the drive with 4 screws, and attach the above mentioned cables. Leave the case open until you know the drive is functional.
Cables are typically provided with motherboards, with retail drive packages, or sold separately. They are NOT provided with OEM drives---which you may well end up getting if you go with an internal. The 2 cables might cost 6 or 8 bucks.
Likewise, OEM drives typically do NOT include the necessary screws.
Or, do I have to set the Master Slave relationship between the two HD's as I seem to remember having to do many years ago ?
The master/slave thing does not apply to SATA drives, which is what you have, UNLESS your PC is quite an antique--10 years old or so. The old style cables were wide and flat like a man's belt. Those are gone in the SATA era. All SATA drives are in effect masters.
Anything else involved ? Will the PC recognize it automatically, e.g. ?
It should spin automatically, but it must be partitioned and formatted before it can be used. That's done from menus and mouse clicks in Windows Disk Management after you restart the PC. Takes minutes. Normally, you'd just use a single partition on a data drive and then sub-divide your stuff with the folder structure of your choice.
BTW: Western Digital still thought of highly ? Anyone meaningfully better ?
What's the difference between their Blue, Black, and Red internal HD line ? Which to get ?
WD is as good as any and better than most.
I'd go with Blue for a data drive. I'd go with Black if I intended to put Windows on the drive. I think Blues are now available in sizes above 1 TB. For a long time, Blues were limited to 1 TB max.
The difference between Black and Blue is mostly in the warranty. Blacks may have some speed advantage that would matter very little for a data drive. You might even consider Green--that's what I use for an internal backup drive.
Don't get caught up in brand choice. They are rank commodities and can all fail at any moment with no warning at all.
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