I had an experience yesterday that recalls a frustrating story related to my
first PC. That happened when I installed an 80286
accelerator card into my 8088-based XT back in the day. This "turbo" XT was
capable of running at 8 MHz, and the accelerator would sometimes lock up when it tried to boot into that blistering speed, requiring a reset to
get it to properly run at 4.77 MHz. I continued to use this PC for a few years
after the upgrade, and when it was time to junk it, I took apart the innards.
Only then did I notice the 80286 card had a jumper that would have allowed it to
run at 8 MHz. You can imagine my irritation when I realized I was missing out
on added performance for years. This brings us to yesterday, when I installed a
program tastefully named Blue Stacks that allows PCs to run Android apps. The
installer informed me that the program would perform better if I turned on CPU
virtualization. So I headed off to my BIOS to enable it. While there I noticed a
setting called "Limit CPUID Maximum" that was also turned off. There was an
explanation that this should be off for Windows XP, so I turned it on. I was
pretty shocked when I booted the machine after those changes and found that this
had cleared up an annoying bit of input lag I have experienced since my
"upgrade" to Windows 10. I don't think I changed anything else, but it feels
like I must have, because what I read about those settings does not seem to
explain the performance improvements I've seen. This doesn't seem to be a factor
in games, so that's sort of the good news that I haven't been missing out all
this time along with the bad news that I'm not getting a free performance
upgrade. The other good news is that I discovered this before this PC hit end of
life like my 286 card and that I never noticed the lag I'm discussing under
Windows 7. This machine is actually over seven years old now(!), but it still
handles all the games I play. And now that the bit of lag is gone from my
desktop apps I don't have any real reason to upgrade yet. Maybe this outlook
will change when Cyberpunk 2077 hits. I'll just have to see.
Performance Enhanced Round-up
Thanks Ant and Neutronbeam.
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