Thanks for the hint on keyboard tester, I've include the screenshot after running the test.
Also plugged/unplugged/recycled power several times.
And tried in my laptop (the only other PC I have available) with the result of an error which may or may not be relevant: "USB device not recognized...
Suddenly my Cooler Master Storm Octane keyboard has stopped working reliably. As this is a family computer used by someone else, I don't really know what happened, but I've been told it just stopped working in the middle of usual use (where usual use means Minecraft).
Some keys work as normal...
This may be a running gag on this site, so apologies if this is all old hat to you.
Although I need to persuade my wife that such a beast is necessary (I'm working on it), it's interesting to see the difference between this quote (£2205) and an as close as possible spec quoted by Dell Alienware...
After owning a series of laptops for casual PC use and gaming for the last 10 years, I feel the need for speed (well a better spec desktop at least). Ideally I'd like to play games like Fallout 4, FarCry 3, ES V: Sykrim, Witcher 2 and their successors on high settings. The current laptop...