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Sep 062018
 

I recently put together a new PC (or mostly) and had occasion to look at what PC cases are like these days. In the end I kept my existing case, but did spend enough time looking to have certain opinions.

And they suck.

All about the glass windows to let the silly lights show through, but how about useful features?

  • Tool-less case panels? Or at least the top panel (to access the expansion cards).
  • Built-in cable runs so things (fans, SATA drives, etc) can be plugged in next to where they are installed.
  • On the subject of fans, servers often have easily removable fan trays; fans are mounted to a plastic frame which in turn slots into position together with power and control signals. A doddle to clean, which would be handy for a desktop workstation.
  • A front panel display to show fault messages during startup – firmware fault codes (some motherboards have a two-digit display but they’re optional and usually not visible when the case is closed). Post-boot it could be used for other things. If it breaks the clean lines of the case, put it behind a sliding panel or something.
  • Handles. And wheels. 
Signs Of The Sea

There are probably a whole bunch more that could usefully be considered, and some of these are inherited from cases known to me (the old Mac Pro case is a good place to start from).

Jan 072007
 

I recently replaced an elderly SGI Octane2 workstation which had 2 CPUs (400MHz MIPS-based), 1.5Gbytes of memory, and 3 elderly SCSI disks with a nice new Sun Ultra40 … 2 AMD Opteron 248s, 2Gbytes memory, and 2 mirrored SATA drives. It is interesting to compare the difference between an old-fashioned workstation originally designed in the middle to late 1990s with a 21st century PC. Not that I’m going to produce hard numbers from useful benchmarks … that is just too much work, and in some ways it is the feel of the differences that are important.

Of course this is not really a fair comparison. Whilst the SGI Octane is now very elderly and due to SGI managerial incompetence has not kept pace with PC performance as it should have done, it is after all a machine that originally cost 10-20 times the cost of the PC I am comparing it to. In car terms, I’m comparing a 20-year old Mercedes with a new and cheap Ford. I should point out that much of the software I am using is very much the same on both machines … the Enlightenment window manager, Sylpheed Claws as the mail client, Firefox as the browser, LyX as the word processor, and a text terminal for much of the remainder.

The PC is considerably quicker than the SGI of course. The graphic user interface is a good deal snappier, and most of the applications offer very welcome improvements in performance. With the exception of GIMP however, none of this performance increase is really essential; my old SGI ran pretty much everything my PC does, fast enough to get the job done. GIMP performance is the reason I upgraded, and here the difference is quite dramatic … filters that previous required patience now run almost instantly; when you are repeatedly trying things out in GIMP on quite large images this performance increase makes some things feasible that simply were not before.

There is one area where the SGI does offer some advantage over the PC; something I was expecting. The PCs disks are overall somewhat faster the the disks in the SGI (and of course I don’t have to pay to mirror my disks!), but the SGI tends to work more smoothly under high load. I’ve noticed before with the ‘low end’ on disks in PCs, that if you start to drive your disks very hard, the computer will sometimes stutter. Essentially the SGI was slower, but smoother under high disk load than the PC.

If was not for the need to run GIMP extensively (and the appeal of more standard add-on hardware like USB hard disks), there is no reason why I could not continue with the SGI. The tendency we have in the computing arena of replacing computers every few years is not a healthy one.

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